Your search

The purpose of this study was to compare the ability of several texture analysis parameters to differentiate textured samples from a smooth control on images obtained with an Atomic Force Microscope (AFM). Surface roughness plays a major role in the realm of material science, especially in integrated electronic devices. As these devices become smaller and smaller, new materials with better electrical properties are needed. New materials with smoother surface morphology have been found to have superior electrical properties than their rougher counterparts. Therefore, in many cases surface texture is indicative of the electrical properties that material will have. Physical vapor deposition techniques such as Jet Vapor Deposition and Molecular Beam Epitaxy are being utilized to synthesize these materials as they have been found to create pure and uniform thin layers. For the current study, growth parameters were varied to produce a spectrum of textured samples. The focus of this study was the image processing techniques associated with quantifying surface texture. As a result of the limited sample size, there was no attempt to draw conclusions about specimen processing methods. The samples were imaged using an AFM in tapping mode. In the process of collecting images, it was discovered that roughness data was much better depicted in the microscope's "height" mode as opposed to "equal area" mode. The AFM quantified the surface texture of each image by returning RMS roughness and the first order histogram statistics of mean roughness, standard deviation, skewness, and kurtosis. Color images from the AFM were then processed on an off line computer running NIH ImageJ with an image texture plug in. This plug in produced another set of first order statistics computed from each images' histogram as well as second order statistics computed from each images' cooccurrence matrix. The second order statistics, which were originally proposed by Haralick, include contrast, angular second moment, correlation, inverse difference moment, and entropy. These features were computed in the 0°, 45°, 90°, and 135° directions. The findings of this study propose that the best combination of quantitative texture parameters is standard deviation, 0° inverse difference moment, and 0° entropy, all of which are obtained from the NIH ImageJ texture plug in. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Valence electron energy-loss spectroscopy is used to investigate the plasmon excitations of ultrathin SrTiO3 sandwiched between amorphous Si and crystalline Si. Two plasmon excitations were observed, one at 15.8 eV and the other at 28.7 eV. Our calculations, based on dielectric-function theory, suggest that the former peak originates from the coupling of the Si layers and is related to the geometry of the structure, and the latter peak results from the SrTiO3 bulk plasmon after a redshift. Our findings demonstrate the value of valence electron energy-loss spectroscopy in detecting a local change in the effective electron mass. © 2010 American Institute of Physics.

A method has been developed to use the finite escape depth of the photoelectrons emitted in ultraviolet photoemission spectroscopy (UPS) to determine the electronic density-of-states at the interface between two dissimilar metal oxides. Ultrathin films of one oxide are grown heteroepitaxially, one monolayer at a time, on a single-crystal substrate of the other oxide, and UPS spectra are taken after each complete monolayer. By comparing experimental UPS spectra with calculated spectra based on specific models of the interfacial structure, the interfacial density-of-states can be extracted. The two oxide systems studied here are NiO-Fe 3O 4 and CoO-Fe 3O 4. The former system is found to have an atomically abrupt interface, with no significant density of interface states. For CoO, however, an interfacial electronic spectrum, different from that of either the substrate or the overlayer, is found. The spatial extent and possible origin of those interfacial states is discussed. © 2010 WILEY-VCH Verlag GmbH &. Co. KGaA, Weinheim.

Purpose – The paper aims to examine the nature of computer ethics as a field of study in light of 20 years of Ethicomp, arguing that computer ethics beyond mere compliance will have to be pluralistic and sensitive to the starting places of various audiences. Design/methodology/approach – The essay offers a philosophical rather than empirical analysis, but the ideal of open inquiry is observed to be manifest in the practice of Ethicomp. Findings – If computer ethics is to constitute a real engagement with industry and society that cultivates a genuine sensitivity to ethical concerns in the creation, development and implementation of technologies, a genuine sensitivity that stands in marked contrast to ethics as “mere compliance”, then computer ethics will have to persist in issuing an open invitation to inquiry. Originality/value – The celebration of 20 years of Ethicomp is an occasion to reflect on who we are and what we mean to be doing. Inclusive of previous accounts (e.g. Moor and Gotterbarn), while going beyond them, an inquiry-based conception of computer ethics makes room for all the various dimensions of computer ethics. ©Emerald Group Publishing Limited

Given the context of the Physics just explored, it will not be a surprise if time (chrόnos) in Aristotle’s analytic of time turns out to be not a being qua itself but an attribute of motion, an interval.

The key to taking in Aristotle’s treatise on time is to approach it with the understanding that Aristotle was not a philosopher concerned with time —in questions about time or in delimiting the being of time.

I defend social media's potential to support Aristotelian virtue friendship against a variety of objections. I begin with Aristotle's claim that the foundation of the best friendships is a shared life. Friends share the distinctively human and valuable components of their lives, especially reasoning together by sharing conversation and thoughts, and communal engagement in valued activities. Although some have charged that shared living is not possible between friends who interact through digital social media, I argue that social media preserves the relevantly human and valuable portions of life, especially reasoning, play, and exchange of ideas. I then consider several criticisms of social media's potential to host friendships, and refute or weaken the force of these objections, using this conception of a distinctively human shared life. I conclude that we should use the shared life to evaluate features of social media and norms for users' conduct.

In The Philosophy of Information, Luciano Floridi presents an ontological theory of Being qua Being, which he calls "Informational Structural Realism", a theory which applies, he says, to every possible world. He identifies primordial information ("dedomena") as the foundation of any structure in any possible world. The present essay examines Floridi's defense of that theory, as well as his refutation of "Digital Ontology" (which some people might confuse with his own). Then, using Floridi's ontology as a starting point, the present essay adds quantum features to dedomena, yielding an ontological theory for our own universe, Quantum Informational Structural Realism, which provides a metaphysical interpretation of key quantum phenomena, and diminishes the "weirdness" or "spookiness" of quantum mechanics. © 2013 The Author(s).

Zhuangzi suggests that death is a transformation that we commonly and mistakenly think means the end of someone but really just marks a new phase of existence. This metaphysical thesis is presented at several points in the text as an explanation of distinctively Daoist responses to death and loss. Some (such as Wong 2006) take a Daoist response to death, as presented by Zhuangzi, to indicate dual perspectives on friendship and death. But I argue that the metaphysical view sketched above is consistent with a unified perspective, allowing the Daoist to enjoy deep friendships without risking some potential for grief typically associated with strong attachment. However, it leaves the Daoist best suited to friendships with those who endorse the same metaphysics. Furthermore, while the grief associated with the death of a friend is somewhat mitigated, the Daoist has reason to mourn even given this thesis. © 2014 The University of Memphis.

This is a translation of the second chapter of F.W.J. Schelling's Abhandlungen zur Erlaüterung des Idealismus der Wissenschaftslehre (1796-1797). It is preceded by a brief introduction in which I situate the chapter within Schelling's oeuvre and suggest that it is not only an early articulation of Schellingian Naturphilosophie, but also prescient, anticipating Schelling's later positive philosophy. © W. S. Maney & Son Ltd 2014.

Business ethics education is experiencing a renaissance as recurring corporate scandals and malpractice over the last decade have ensured that most universities now see the subject as an important and necessary component of any business degree course. As well as integrating professional ethics into their curriculum, Business Schools are also developing standalone ethics courses, showing that they take seriously their responsibility to help prepare the next generation of managers to improve business' track record of transparency, accountability and sustainable development. However what are the learning approaches that will help to bring about real improvements in business ethics learning at university? This paper argues that a holistic approach to ethics teaching is needed, in which students are encouraged to develop ethical knowledge and skills within their personal value systems. In this way ethics does not become something apart but integrated into one's terms of reference. The paper discusses a particular pedagogic approach designed to develop a student's 'critical consciousness' using a student-led learning method in which students actively engage with important concepts and discuss the issues amongst themselves within an environment where they can speak freely. Qualitative interviews with a selection of undergraduates on the compulsory first year professional ethics module provide insight into the impact of the method on attitudes and behaviours. © 2013 Elsevier Ltd.

This brief article describes the circumstances that led to the creation of the journal Metaphilosophy in autumn 1968. A year after I had left graduate school, an unfortunate accident left me flat on my back for several weeks with nothing to do while recuperating from eye surgery. Bored, I decided to do something constructive, so I created a scholarly journal devoted to articles about the nature of philosophy, or how the different schools or branches of philosophy relate to each other, or how philosophy relates to other disciplines. I made up the word "metaphilosophy" to describe such content, and I decided to call the journal by that name. With help from my wife, from my best friend, and from my undergraduate philosophy mentor, the journal Metaphilosophy was launched. © 2011 Metaphilosophy LLC and Blackwell Publishing Ltd.

Individuals who become ill as a result of personal lifestyle choices often shift the monetary costs of their healthcare needs to the taxpaying public or to fellow members of a private insurance pool. Some argue that policies permitting such cost shifting are unfair. Arguments for this view may seem to draw support from luck egalitarian accounts of distributive justice. This essay argues that the luck egalitarian framework provides no such support. To allocate healthcare costs on the basis of personal responsibility would arbitrarily and publicly burden socially detectable risk-takers while undetectable risk-takers continue to get a free ride. That problem is unavoidable even on the assumption that distributive institutions outside the healthcare sector are fully just. In actual, farfrom-just societies, imposing personal liability for the costs of voluntary risk taking would be wrong for an additional reason. Doing so would tend to magnify existing distributive injustices. These conclusions draw attention to two common 'moral fallacies of the second best' that can arise when applying ideal normative theory to matters of institutional design and in real-world policy contexts. © 2011 Springer Science+Business Media B.V.

Abstract: In the past, major scientific and technological revolutions, like the Copernican Revolution and the Industrial Revolution, have had profound effects, not only upon society in general, but also upon Philosophy. Today's Information Revolution is no exception. Already it has had significant impacts upon our understanding of human nature, the nature of society, even the nature of the universe. Given these developments, this essay considers some of the philosophical contributions of two “philosophers of the Information Age”—Norbert Wiener and Luciano Floridi—with regard to the nature of the universe, human nature, the nature of society, and the nature of “artificial agents” such as robots, softbots, and cyborgs.

This paper defends the thesis that privacy as a right is derived from fundamental rights to life, liberty, and property and does not permit restricting the commodification of bodily material; however, privacy as life, liberty, property does require conventions that ensure a robust and just market in bodily material. The analysis proceeds by defending a general commitment to liberty and markets, but not in the manner one might expect from a 'doctrinaire' libertarian. Ethical concerns about commodification are legitimate in the context of new medical and information technologies, but these concerns are not sufficiently well defined to justify political conclusions, since not every ethical concern is in itself a political concern, and the best way to resolve certain ethical difficulties is to draw up political boundaries that facilitate the discovery and testing of various solutions to our ethical puzzles. To illustrate the point, I will indicate how privacy as life, liberty, property defines such a dynamic solution to the problems of commodification of human bodily material and slippery information in insurance markets.

The information ethics (IE) of Floridi and Sanders is evaluated here in the light of an alternative in virtue ethics that is antifoundationalist, particularist, and relativist in contrast to Floridi's foundationalist, impartialist, and universalist commitments. Drawing from disparate traditional sources like Aristotle, Nietzsche, and Emerson, as well as contemporary advocates of virtue ethics like Nussbaum, Foot, and Williams, the essay shows that the central contentions of IE, including especially the principle of ontological equality, must either express commitments grounded in the particular perspectives we already inhabit, or be without rational or ethical force for us. © 2010 Metaphilosophy LLC and Blackwell Publishing Ltd.

This article describes the development process for creating a digital educational mini game prototype designed to provide practice opportunities for learning fundamental principles of arterial blood gases. Mini games generally take less than an hour to play and focus on specific subject matter. An interdisciplinary team of faculty from two universities mentored student game developers to design a digital educational mini game prototype. Sixteen accelerated bachelor of science in nursing students collaborated with game development students and playtested the game prototype during the last semester of their senior year in nursing school. Playtesting is a form of feedback that supports an iterative design process that is critical to game development. A 10-question survey was coupled with group discussions addressing five broad themes of an archetypical digital educational mini game to yield feedback on game design, play, and content. Four rounds of playtesting and incorporating feedback supported the iterative process. Accelerated bachelor of science in nursing student playtester feedback suggests that the digital educational mini game prototype has potential for offering an engaging, playful game experience that will support securing the fundamental principles of arterial blood gases. Next steps are to test the digital educational mini game for teaching and learning effectiveness. (C) 2016 Elsevier Inc. All rights reserved.

Health disparities, especially among minorities, persist; obesity is a national concern; and the combined effect can be significant for families and populations. In an effort to address obesity at an early age, the National Association of Hispanic Nurses (NAHN), developed the Muevete USA project. Muevete USA (from the Spanish verb for to move) features five lesson plans on healthy lifestyles for children and their families. This article describes Muevete USA, the partnership with a local school of nursing, the implementation of the program at the local level and the emerging program and student outcomes of a successful partnership.