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The purpose of this paper is to present a novel approach for digital watermarking and steganography technique that uses neural networks. The performance of the proposed solution in terms of its capacity, transparency, and robustness is investigated.

The proposed technique trains a neural network to learn the perceptual masking model of the human vision system. Once trained, the neural network identifies pixels whose most significant alteration will be least perceptible to the human eye. The image is then altered based on the network recommendation to include the watermark or the covert data.

Experimental results demonstrate that the proposed technique offers excellent transparency and good capacity. In addition, since neural networks store their learned knowledge in a distributed fashion, steganalysis of the image without access to the network is very difficult, if not impossible. Results demonstrate good performance of the proposed solution in terms of its capacity, transparency, and robustness.

Use of neural networks in extracting and representing perceptual masking model of human vision system is interesting. Value added by the proposed approach is in its use of artificial neural networks to model the perceptual masking model of human vision system for injecting imperceptible data into most perceptually significant pits of an image. The proposed approach may be used in combination with most current and popular methods with little impact on perceptual quality of the resulting image.

This study examines the underlying reasons for the police use of deadly force and potential deadly force, in the Province of British Columbia, Canada, during the period 1980‐94. Within this context, interactional violence and the phenomenon of victim‐precipitated homicide are examined in relation to the police use of deadly force. This study analyzes 58 separate documented incidents in which municipal and Royal Canadian Mounted Police officers, within the Province of British Columbia, have been confronted by a potentially lethal threat. In 27 of these incidents, the police responded by discharging their firearms and killing a total of 28 people. The remaining 31 cases that were examined reflect incidents in which the police responded with less‐lethal force. Through the examination of police investigations, verdict‐at‐coroner’s‐inquest reports, BC Police Commission data and interviews with police officers, this study reveals that, in roughly half of the cases examined (N = 28), the police reacted to a potentially lethal threat of victim‐precipitated homicide. These are incidents in which despondent individuals suffering from suicidal tendencies, mental illness, or extreme substance abuse, acted in a calculated and deliberate manner so as to force the police to use potential or deadly force. The study recommends that police personnel within the Province of British Columbia should be given further alternatives to the standard‐issue firearm, when responding to potentially lethal threats. Non‐lethal tools of compliance should be made readily available to the operational police officer with a view to providing alternatives to the traditional use of deadly force. In addition, the training of police personnel should emphasize non‐violent strategies in dealing with irrational individuals who are suicidal, mentally disordered and/or intoxicated.

Privacy is a requirement that has not received the required attention in most e‐learning platforms. Based on the results of a survey we identified weaknesses of e‐learning platforms and describe improvements we made in Moodle as a proof‐of‐concept.

The purpose of this study is to examine cultural intelligence's (CQ) influence on international business travelers' ability to deal with the strain caused by institutional distance (ID).

The methodology begins with a literature review to establish a framework for discussion by bringing together international business travel, stress, distance, and CQ. A total of 841 participants from Sao Paulo Guarulhos International Airport were surveyed in order to test the hypotheses.

Results reveal that CQ partially moderates the relationship between ID and travel and job strain.

Furthermore, the research implies that an increase in CQ is not positive in all situations.

This is the first empirical study to examine CQ in the short‐term context of international business travel.

The chapter reconstructs the methodological trajectory of Polly Hill. Crossing the boundaries between economics and anthropology, Hill’s work was simultaneously an epistemic challenge to development economics, and a testimony to the complexity and richness of economic life in what she called the “rural tropical world.” Drawing inspiration from the process that Mary Morgan referred to as “seeking parts, looking for wholes,” the chapter explores the evolving relationship between observational practice and conceptual categories in Hill’s work on West Africa and India. It is argued that fieldwork, the central element in Hill’s methodological reflection, served two main functions. Firstly, it acted as the cornerstone of her views on observation and induction, framing her understanding of the relationship between “parts” and “wholes.” Secondly, Hill used fieldwork as a narrative trope to articulate her hopeful vision for an integration of economics and anthropology, and later express her feelings of distance and alienation from the ways in which these disciplines were actually practiced.