Search results for "Security"

Deficiencias epistemológicas en la enseñanza habitual de los conceptos de campo y potencial eléctrico

1997

This article intends to analyse up to what extent the scarce learning produced when introducing the basic concepts on electrostatics is due to deficiencies and inadequacies in its routine teaching. So, on the one hand, we analyse what have been the principal epistemological leaps forward in the making of electricity as a science. On the other hand, we analyse Physics books and the teachers’ opinions.

Cost Reduction in Irrigation Networks by an Efficient Use of Pressure Reducing Valves

1992

The cost effective design of hydraulic networks has been traditionally studied from the point of view of the relationship between hydraulic variables and economic parameters, with piping being the main element studied. The reason is clear: the piping is by far the most costly item of a projected network. However it is not usual to find an explicit consideration of the influence that pipe thickness has on the cost of the network because of the added difficulty that this aspect poses to formulating the problem of optimization. In irrigation networks, which are typically branched, it is advisable to place Pressure Reducing Valves (PRV’s) to fulfil three main goals: 1) to control the flow rate …

Transactions in Mobile Electronic Commerce

2000

With the development of global networking, invention of WWW, and proliferation of Internet-enabled computer hardware and software into homes and pockets, a huge customer base has been created for electronic commerce. It is rapidly expanding in USA and Europe and Japan are following the trend. So far, the development of E-commerce has happened in a rather unregulated way especially in USA, whereas in Europe the European Commission has been developing a regulatory basis mainly in form of directives. Currently (12/1999) they have not yet all been accepted and a major restructuring of the regulatory framework has also been planned. Another technological development is the rapid growth of mobile…

Non-naturalistic Neuroethics for Moral Neuroeducation

2019

The aim of this chapter is to examine a series of key approaches towards identifying an appropriate neuroethics for moral neuroeducation. I begin by highlighting the shortcomings of neuroeducation models that side-line ethical issues. Neuroscience has contributed decisively to the knowledge of the brain mechanisms involved in teaching and learning processes. However, often only one form of learning, that based on instrumental subjects (mathematical calculation or reading), is taken into account. Undoubtedly, neuroeducational advances in this area have been very beneficial, but by focusing on education in strictly instrumental terms, the principles and ethical values that should structure ed…

Solving the Surveillance Problem

2017

This chapter examines the way surveillance is discussed in the leading Finnish newspaper Helsingin Sanomat after the revelations made by former NSA-contractor Edward Snowden. In 2013, Snowden provided journalists with documents that revealed the unexpected extent of surveillance conducted by security agencies such as the NSA. Drawing on Critical Discourse Studies and a Foucauldian view of discourse, this article understands media discussions following the Snowden revelations as discursive struggles where the legitimacy and future of surveillance are being constructed and debated. The article examines the ways the media formulates solutions to the problems posed by surveillance, and explores…

Introduction to Emerging Risks and Systemic Concerns in Information Security Research and Applications Minitrack

2013

How “African” Is the African Peace and Security Architecture? Conceptual and Practical Constraints of Regional Security Cooperation in Africa

2012

ABSTRACT With the creation of the African Peace and Security Architecture in 2004, African states were aiming to assume the primary responsibility for peace and security on the continent and establish a structure to assemble the necessary financial and military means. However, despite the constant evocation of “African ownership,” it is non-African actors that call the tune and can define and drive African security. Based on a detailed juxtaposition of rhetoric and empirical evidence, this paper argues that significant conceptual and practical problems constrain the “Africanization” of African security and that it appears increasingly unlikely that the continent's states will be able to ach…

Biaxial deformation and ductility domains for engineered rectangular RC cross-sections: A parametric study highlighting the positive roles of axial l…

2016

Abstract Axial load and biaxial bending strongly influence the deformation capacity of column cross-sections, in most cases causing a non-negligible loss of curvature and ductility with respect to the case of pure bending along principal axes, commonly assumed as the basic condition to assess the inelastic capacity. In consideration of this the paper investigates the biaxial deformation performance of RC rectangular cross-sections belonging to one-dimensional elements, focusing on the influence of some parameters as the cross-section aspect ratio and the distribution of the rebars, as well as the mechanical characteristics of concrete and steel and the impact of biaxial/axial stresses. In t…

Analyzing Large-Scale Crowd Simulations for Building Evacuation

2010

Animated virtual crowds have been used last years for analyzing human factors in scenarios where masses of people gather. A typical example is building evacuation in case of fire. Scalability still remains as an open issue for these multiagent systems applications. In this paper, we use a scalable architecture to simulate a large-scale version of a virtual crowd in a building evacuation. From the social point of view, the results provided by the large-scale version of the crowd add new and crucial information about the agents behavior, emphasizing the need for a small amount of trained leaders in order to save lives. From the system point of view, the results show that the trend of avatars …

Reducing the gap between leaders and voters? Elite polarization, outbidding competition, and the rise of secessionism in Catalonia

2016

ABSTRACTThe ethnic outbidding thesis explains party polarization as a consequence of political changes amongst voters. We argued instead that party elites’ extreme position on the national identity cleavage can help polarizing strategies to prevail over moderate strategies in a context of increasing political uncertainty, without previous voters’ polarization. We test successfully this hypothesis in Catalonia by analysing the polarization of political parties and people’s demands for self-government in Catalonia since the early 2000s. We also find that the result of this outbidding pattern of competition was a reduction in the gap between elites’ and voters’ views on national identity. The …