In this paper a new technique of dual image watermarking is proposed for protection of ownership rights which utilizes salient properties of homomorphic transform (HT), discrete wavelet transform (DWT), singular value decomposition (SVD) and Arnold transform (AT). In embedding algorithm host image is splitted into reflectance and illumination components using HT, DWT is further applied to the reflectance component resulting in frequency subbands (HL and LH) which are transformed by SVD. Two image watermarks are selected for embedding process whereas security (...) of proposed algorithm is strengthen by performing scrambling of second watermark through AT. Both watermarks are transformed with DWT and SVD. Singular values (SVs) of both transformed watermark are embedded into SVs of host image. Simulation results clearly signifies for high robustness and imperceptibility of proposed algorithm as it is examined under various attacks. Superiority of proposed technique is illustrated by comparing it with other reported methods. (shrink)

On the philosophy of Madhusudana Sarasvatī, Advaita Vedanta scholar.

Being able to self-regulate one’s learning is essential for academic success but is also very difficult for students. Especially first year students can be overwhelmed with the high study load and autonomy in higher education. To face this challenge, students’ monitoring and self-regulated learning processes are crucial. Yet, often students are not aware of effective SRL strategies or how to use them. In this study, the use of a mobile application with gamification elements to support first-year university students’ SRL processes (...) was investigated. In Study 1a, the Ace your self-study app was implemented in a first-year psychology course, and students’ SRL skills, motivation, self-efficacy, app use and satisfaction, and performance were measured. The results showed a significant increase in autonomous motivation, controlled motivation, and metacognitive self-regulation skills across the 5-week course. Moreover, students who used the mobile application with gamified elements showed higher autonomous motivation. Nevertheless, most students used the app only for a limited number of self-study sessions. In Study 1b, students’ self-study experiences were captured using focus group interviews to shed some more light on why students did or did not use the app. The results show that if students feel they do not need support for their SRL processes during self-study, they are less inclined to use the app. Specifically, regarding using study strategies, it was found that only if students’ strategies do not work well in their perception, they feel the need to change their way of studying and choose another strategy. These results are discussed in the context of theory on SRL and how to support it. (shrink)

This article casts in high relief the paradigmatic rigidity in strategy research by highlighting the underlying philosophical assumptions (ontological, epistemological, methodological), their advantages, and their limitations. The article discusses four philosophical paradigms that underpin strategy research. While positivism and constructivism are the dominant paradigms, critical realism and pragmatism as relevant philosophical perspectives are also discussed. Using entrepreneurial opportunity as an exemplar, the article explains how philosophical assumptions inform the researchers’ worldview and guide research within a paradigm. The article contends that (...) paradigmatic dogmatism is undesirable in any discipline, more so in a relatively young discipline such as strategic management. Rather than adhering to and nestling inside a single metatheoretical paradigm, the article calls for a more reflexive philosophical approach in strategy research to gain fresh perspectives. (shrink)

An individual’s accountability to oneself leads to self-regulatory behaviour. A field experiment afforded an opportunity to test this relation, given that external accountability conditions were absent. A single group pre-test/post-test design was used to test the hypothesis. A group of full-time resident management students, n ≈ 550, take four meals during the day in the institute mess. As a part of the experiment, food wastage in the form of leftovers on the plates of subjects was measured. As a pre-test, the (...) measurement occurred at two levels. Subjects could see how much they are adding to the total waste by looking at a weighing scale placed under a waste basket, and they could also see the total waste data for each of the four meals for the day and a day earlier displayed at a prominent place. After 105 days, the weighing scale under the basket was removed, and as a post-test measurement, the total waste data for the four meals were noted down for another 72 days. A manipulation test indicated that the experiment has had the desired effect of invoking self-accountability in subjects during the pre-test phase, and diluting it during the post-test phase. Time series analysis of pre-test and post-test data indicated that the wastage data decreased in the pre-test phase. However, the post-test waste data showed an increase over a period of time. The results indicate that accountability conditions like social norms invoke self-accountability cognition leading to self-regulatory behaviours in individuals. (shrink)