Name der Zeitschrift: Jahrbuch für Wissenschaft und Ethik Jahrgang: 20 Heft: 1 Seiten: 289-292.

This paper considers electronic monitoring (EM) a promising alternative to imprisonment as a criminal sanction for a series of criminal offenses. However, little has been said about EM from an ethical perspective. To evaluate EM from an ethical perspective, six initial ethical challenges are addressed and discussed. It is argued that since EM is developing as a technology and a punitive means, it is urgent to discuss its ethical implications and incorporate moral values into its design and development.

One of the most significant changes in modern healthcare delivery has been the evolution of the paper record to the electronic health record (EHR). In this paper we argue that the primary change has been a shift in the focus of documentation from monitoring individual patient progress to recording data pertinent to Institutional Priorities (IPs). The specific IPs to which we refer include: finance/reimbursement; risk management/legal considerations; quality improvement/safety initiatives; meeting regulatory and accreditation standards; and patient care delivery/evidence based (...) practice. Following a brief history of the transition from the paper record to the EHR, the authors discuss unintended or contested consequences resulting from this change. These changes primarily reflect changes in the organization and amount of clinician work and clinician‐patient relationships. The paper is not a research report but was informed by an institutional ethnography the aim of which was to understand how the EHR impacted clinicians and administrators in a large, urban hospital in the United States. The paper was also informed by other sources, including the philosophies of Jacques Ellul, Don Idhe, and Langdon Winner. (shrink)

The article examines a recent interventionist account of causation by Ross, in which electronic configurations of atoms are considered to be the cause of chemical behavior. More specifically I respond to the claim that a change in electronic configuration of an atom, such as occurs in the artificial synthesis of elements, causes a change in the behavior of the atom in question. I argue that chemical behavior is governed as much by the nuclear charge of an atom as (...) it is by its electronic structure. It is suggested that an adequate analysis requires attention to the dynamical interactions between nuclear charges and those of electrons, as typically carried out through the application of the Schrödinger equation. It is concluded that electronic configurations can only be said be causal in a weak sense that is somewhat analogous to the causal arguments that are invoked in folk physics. (shrink)

The rise of digital and interconnected technology within the workplace, including programs that facilitate monitoring and surveillance of employees is unstoppable. The COVID-19-induced lockdowns and the resulting increase in home office adoption even increased this trend. Apart from major benefits that may come along with such information and communication technologies (e.g., productivity increases, better resource planning, and increased worker safety), they also enable comprehensive Electronic Performance Monitoring (EPM) which may also have negative effects (e.g., increased stress and a reduction (...) in job satisfaction). This conceptual article investigates EPM to better understand the development, adoption, and impact of EPM systems in organizations. The EPM literature published since the 1980s constitutes the basis for this conceptual article. We present a framework which is intended to serve as foundation for future studies. Moreover, we reviewed more than three decades of empirical EPM research and identified six major outcomes that are influenced by the use of an EPM system, as well as a large number of moderator variables. Based on our conceptual analyses and the resulting insights, which also include privacy, ethical, and cultural considerations, we discuss future research opportunities where we also refer to design implications for EPM systems. (shrink)

The specific arrangements of power/knowledge that characterize nurse interactions with the electronic health record form a panopticon. As health care moves into the 21st century, sophisticated technologies like the electronic health record shape the terrain of professional possibilities. The longer it is in use, the more it is possible to excavate the inherent disciplinary function of electronic health record. A panopticon is a generalizable, replicable apparatus of power that cultivates discipline when similar behaviours are desired from a (...) group of people. This paper traces the arrangements of power/knowledge that characterize nurse interactions with the electronic health record rooted in a trauma critical care setting. Examining the apparatuses of power/knowledge enforced through panopticism in nursing makes the invisible visible. This in turn enables nurses to address the intended and unintended consequences of the electronic health record. If nurses are to effectively shape the direction of their own futures and the future of health care, nurses will need to unpack the invisible techniques of power such as the electronic health record as a panopticon. In the process of building a visible identity, contextualizing nursing knowledge to better care for patients on the one hand and understand the relationships of power that limit us on the other, nurses are neither apolitical nor powerless. Considering the dialectic of power/knowledge in the healthcare setting helps to illuminate spaces to recharacterize nursing, reveal the contributions and knowledge of nurses, and consolidate the professional power of nurses to affect meaningful change and self‐governance in the healthcare setting. (shrink)

In the bitcoin whitepaper, Satoshi Nakamoto (2008: 2) defines an electronic coin as a chain of digital signatures. Many have since defined a bitcoin as a chain of digital signatures. This latter definition continues to appear in reports from central banks, advocacy centers, and governments, as well as in academic papers across the disciplines of law, economics, computer science, cryptography, management, and philosophy. Some have even used it to argue that what we now call bitcoin is not the real (...) bitcoin. The definition fails, however. This is important because the Chain Definition obscures Satoshi’s solution to a dilemma in the design of electronic cash, as well as the truth about bitcoin’s privacy and fungibility. In this article, I explain why the Chain Definition fails and what Satoshi likely endorsed instead. Along the way, I untangle some issues around bitcoin fungibility and clarify some others around the ontology of digital assets. (shrink)

This dissertation reconstructs some aspects of the historical development of the concept of the electron from 1891, when the term "electron" was introduced, to 1925, when the notion of spin was put forward, in the light of the relevant historiographical and philosophical problems. The central historiographical tool employed is Karl Popper's notion of a problem situation. Furthermore, some of the historical episodes are reconstructed in terms of a "biographical" approach to theoretical entities that portrays them as active agents that participate (...) in the development of scientific knowledge. Their agency is due to the heuristic resources that they embody and to the resistance that they exhibit to manipulation. The historical analysis begins with a reconceptualization of the "discovery" of the electron and aims at situating the principal historical actors within the wider process which led to the acceptance of the electron as an element of the ontology of physics. I continue with a reconstruction of the discovery of the Zeeman effect in the light of recent work on the history and philosophy of experimental science. The next three chapters are devoted to a reading of the development of the old quantum theory of the atom , which aimed at understanding the behavior and distribution of electrons bound within the atom, from the perspective of the electron's biography. Furthermore, I discuss the chemists' representation of the electron and contrast it with its physical counterpart. The main philosophical problem examined concerns the implications of meaning change for scientific realism . I discuss in detail that issue and argue against the widespread view that meaning variance is incompatible with scientific realism. Thus, I provide a way out for the aspiring realist, without however committing myself to a realist position. Finally, I argue that the historical development of the concept of the electron from 1896 to 1925 is compatible with a realist construal of its ontological status. (shrink)

The present paper summarizes the development of the national electronic Identity Management System (eIDMS) in Estonia according to a conceptual framework developed in an European comparative research project outlined in the first chapter of this special issue. Its main function is to amend the picture of the European eIDMS landscape by presenting a case with high involvement of the private sector and thereby checking the generalizations from the comparisons of Austria, Belgium, Germany and Spain, presented by Kubicek and Noack (...) in the previous chapter of this special issue. Starting with a short introduction into the historical background of identity documents in Estonia the national population register, the passport as well as the bank ID are described as the main pillars of the Estonian eIDMS, on which the national ID card builds on, which has been introduced in 2002. The technical features of the eID and the ID card are described in Section two as well as the areas of application and the processes for production and distribution. Section three presents the actors constellation, Section four the time line of the development process, starting from 1997. Section five deals with the diffusion and promotion of the ID card and the eID authentication function. After a very low and slow take up during the first 5 years due to a cooperation agreement between major banks, telecom operators and the government usage has increased. But still the authentication by Internet banks, which provides authentication services to third parties, including government, is the biggest competitor for the eID function on the national eID card. Only recently the major banks have announced to slowly fade out the password cards and PIN calculators as alternative modes of bank authentication. (shrink)

Players of electronic games, particularly on-line role-playing games, may invest a substantial degree of time, effort, and personal identity into the game scenarios they generate. Yet, where the wishes of players diverge from those of game publishers, the legal and ethical interests of players remain unclear. The most applicable set of legal principles are those of copyright law, which is often grounded in utilitarian justifications, but which may also be justified on deontological grounds. Past copyright cases involving video arcade (...) and per-sonal computer gaming suggest that the gaming scenaria generated by players may constitute original selec-tion and arrangement of the game elements, thus qualifying such gaming sequences for copyright protection as either derivative works or works of joint authorship. But this result may be difficult to justify on utilitarian theories. Rather, the personal investment of game players suggests a deontological basis for claims of game sequence ownership. (shrink)

Within quantum chemistry, the electron clouds that surround nuclei in atoms and molecules are sometimes treated as clouds of probability and sometimes as clouds of charge. These two roles, tracing back to Schrödinger and Born, are in tension with one another but are not incompatible. Schrödinger’s idea that the nucleus of an atom is surrounded by a spread-out electron charge density is supported by a variety of evidence from quantum chemistry, including two methods that are used to determine atomic and (...) molecular structure: the Hartree-Fock method and density functional theory. Taking this evidence as a clue to the foundations of quantum physics, Schrödinger’s electron charge density can be incorporated into many different interpretations of quantum mechanics. (shrink)

In the present paper we discuss: a) how Hilbert’s unification program failed completely, and b) we outline a new electron model based on Helmholtz’s electron vortex and Kolmogorov theory of turbulence. Novelty aspect: we discuss among other things, electron capture event, and von Karman vortex street. We also discuss a new model of origination of charge and matter. This paper is a sequel to a preceding paper on similar theme.

The historical development of the electronic configuration model is traced and the status of the model with respect to quantum mechanics is examined. The successes and problems raised by the model are explored, particularly in chemical ab initio calculations. The relevance of these issues to whether chemistry has been reduced to quantum mechanics is discussed, as are some general notions on reduction.

Although negative stain electron microscopy is a wonderfully simple way of directly visualizing protein complexes and other biological macromolecules, the images are not really comparable to those of objects seen in everyday life. The failure to appreciate this has recently led to an incorrect interpretation of RecA‐family filament structures.

The effective collection and management of personal data of rapidly migrating populations is important for ensuring adequate healthcare and monitoring of a displaced peoples’ health status. With developments in ICT data sharing capabilities, electronic personal health records (ePHRs) are increasingly replacing less transportable paper records. ePHRs offer further advantages of improving accuracy and completeness of information and seem tailored for rapidly displaced and mobile populations. Various emerging initiatives in Europe are seeking to develop migrant‐centric ePHR responses. This paper highlights (...) their importance and benefits, but also identifies a number of significant ethical, legal and social issues (ELSI) and challenges to their design and implementation, regarding (1) the kind of information that should be stored, (2) who should have access to information, and (3) potential misuse of information. These challenges need to be urgently addressed to make possible the beneficial use of ePHRs for vulnerable migrants in Europe. (shrink)

This study presents the results of a survey of student satisfaction with electronic discussion boards in a course on the responsible conduct of research (RCR). On a 1–5 scale, the respondents stated that the use of the electronic discussion board was an effective teaching tool (4.71), that it enabled them to get feedback from their peers (4.43), that it helped promote discussion and debate (4.36), that it helped them learn how to analyze ethical dilemmas in research (4.36), and (...) that they would consider using an electronic discussion board, if they ever taught a course themselves (4.76). In their written comments, the respondents indicated that electronic discussion boards are a convenient way of promoting debate and in-depth discussion. These results suggest, but do not prove, that discussion boards can promote debate and discussion in courses on research ethics. Instructors who teach RCR should consider using electronic discussion boards in regular or online courses, and they should consider studying the effectiveness of electronic discussion boards in research ethics education. Although electronic discussion boards cannot replace the face-to-face interaction that occurs in a classroom setting, they may provide a useful medium for the exchange of ideas and opinions online. (shrink)

Electronic health record (EHRs) have largely replaced obsolete paper medical charts. This replacement has produced an increased demand on physicians’ time and has compromised efficiency. In an attempt to overcome this perceived obstacle to productivity, physicians turned to medical scribes to perform the work required by EHRs. In doing so, they have introduced an uninvited participant in the physician-patient relationship and compromised patients’ confidentiality. Scribes may be a successful work around for physicians frustrated by EHRs, but patients’ confidentiality should (...) not be sacrificed in the process. (shrink)

PURPOSE—A substantial fraction of the observations made by clinicians and entered into patient records are expressed by means of negation or by using terms which contain negative qualifiers (as in “absence of pulse” or “surgical procedure not performed”). This seems at first sight to present problems for ontologies, terminologies and data repositories that adhere to a realist view and thus reject any reference to putative non-existing entities. Basic Formal Ontology (BFO) and Referent Tracking (RT) are examples of such paradigms. The (...) purpose of the research here described was to test a proposal to capture negative findings in electronic health record systems based on BFO and RT. METHODS—We analysed a series of negative findings encountered in 748 sentences taken from 41 patient charts. We classified the phenomena described in terms of the various top-level categories and relations defined in BFO, taking into account the role of negation in the corresponding descriptions. We also studied terms from SNOMED-CT containing one or other form of negation. We then explored ways to represent the described phenomena by means of the types of representational units available to realist ontologies such as BFO. RESULTS—We introduced a new family of ‘lacks’ relations into the OBO Relation Ontology. The relation lacks_part, for example, defined in terms of the positive relation part_of, holds between a particular p and a universal U when p has no instance of U as part. Since p and U both exist, assertions involving ‘lacks_part’ and its cognates meet the requirements of positivity. CONCLUSION—By expanding the OBO Relation Ontology, we were able to accommodate nearly all occurrences of negative findings in the sample studied. (shrink)

This study aims to identify the electronic banking services in Palestine from the point of view of the customers of the banks, where researchers used the descriptive analytical method, through a questionnaire distributed electronically to the sample of beneficiaries of the electronic banking services provided by banks operating in Palestine. The study reached a number of results, the most important of which are: There is a moderate degree of efficiency of electronic banking services provided in banks operating (...) in Palestine from the point of view of bank customers. Where the total score of electronic banking services received a relative weight of (64.37%), the results of the study confirmed that the ranking of electronic banking services as follows: Internet banking services ranked first with a relative weight (66.68%), a medium percentage, while ATM services came in Second place with a relative weight (64.30%), and mobile application services got the third and last place with a relative weight (62.12%). The results also showed that there are statistically significant differences between banks operating in Palestine according to the bank variable from the beneficiaries' point of view in favor of Bank of Palestine. The results showed that there were no statistically significant differences between banks operating in Palestine according to the variable number of years of dealing with the bank from the point of view of beneficiaries. The study made a number of recommendations, the most important of which are: The need for banks to enhance the use of electronic banking services and upgrade them. Conduct awareness campaigns on the importance of electronic banking services and give appropriate incentives to beneficiaries who deal with them. Direct customers use electronic banking services instead of traditional methods. Attention to quickly respond to customer problems sent via the website. (shrink)

Health authorities increasingly request that general practitioners use information and communication technologies such as electronic patient records for accountability purposes. This article deals with the use of EPRs among general practitioners in Britain. It examines two ways in which GPs use the EPR for accountability purposes. One way is to generate audit reports on the basis of the information that has been entered into the record. The other is to let the computer intervene in the clinical process through prompts. (...) The article argues that GPs' ambivalence toward using the EPR makes them active in finding ways that turn the EPR into a meaningful tool for them, that is, a tool that helps them provide what they see as good care. The article's main contribution is to show how accountability and autonomy are coproduced; less professional autonomy does not follow from more requests to document one's work. Instead, new forms of autonomy are produced in the sociotechnical network that is made up by health policy and local engagements with patients and technology. (shrink)

This study aimed at investigating the role of electronic portfolios in fostering pre?service teachers? reflective thinking. The research was conducted with pre?service English language teachers enrolled in a practicum course in an undergraduate teacher education programme in Turkey. The data were collected through e?portfolios and interviews. The findings revealed that e?portfolios gave participants a sense of ownership, fostered reflecting thinking, supported collaboration and allowed them to make connections between theory and practice. With the on?going nature of the e?portfolio, participants (...) had the chance of developing and reviewing their portfolio artefacts whenever and wherever they wanted. Therefore, electronic portfolios allowed teacher candidates to reflect more on their own work and thus engage in on?going professional development. (shrink)

The article covers electronic informed consent from different dimensions so that practitioners might understand the history, regulation, and current status of eIC. It covers the transition of informed consent to electronic screens and the implications of that transition in terms of design, costs, and data analysis. The article explores the limits of regulation mandating eIC for mobile application research, and addresses some of the broader social context around eIC.

Legal information certification and secured storage combined with documents electronic signature are of great interest when digital documents security and conservation are in concern. Therefore, these new and evolving technologies offer powerful abilities, such as identification, authentication and certification. The latter contribute to increase the global security of legal digital archives conservation and access. However, currently used cryptographic and hash coding concepts cannot intrinsically enclose cognitive information about both the signer and the signed content. Indeed, an evolution of these (...) technologies may be necessary to achieve full text researches within hundreds or thousands of electronically signed documents. This article aims at describing a possible model along with associated processes to create and make use of these new electronic signatures called “meaningful electronic signatures” as opposed to traditional electronic signatures based on bit per bit computation. (shrink)

BackgroundThe research shows a growing trend in using an electronic platform to supplement or replace traditional paper-based informed consent processes. Instead of the traditionally written informed consent document, electronic informed consent may be used to assess the research subject’s comprehension of the information presented. By doing so, respect for persons as one of the research ethical principles can be upheld. Furthermore, these electronic methods may reduce potential airborne infection exposures, particularly during the pandemic, thereby adhering to the (...) beneficence and nonmaleficence principle. This scoping review aims to identify the ethics related criteria that have been included in electronic informed consent processes and to synthesize and map these criteria to research ethics principles, in order to identify the gaps, if any, in current electronic informed consent processes.MethodsThe search was performed based on internet search and three main databases: PubMed, SCOPUS and EBSCO. PRISMA Extension for Scoping Reviews : Checklist and Explanation guideline was used to report this work.ResultsOf 34 studies that met the inclusion criteria, 242 essential original constructs were collated, and 7 concepts were derived. Digital content showed the highest percentage of collated original constructs followed by accessibility, comprehension engagement, autonomy, confidentiality, language, and parental consent. Twenty-five new items were synthesized for eConsent criteria which may provide guidance for ethical review of research involving eConsent.ConclusionThe current study adds significant value to the corpus of knowledge in research ethics by providing ethical criteria on electronic informed consent based on evidence-based data. The new synthesized items in the criteria can be readily used as an initial guide by the IRB/rec members during a review process on electronic informed consent and useful to the future preparation of a checklist. (shrink)

Problems of self-interaction arise in both classical and quantum field theories. To understand how such problems are to be addressed in a quantum theory of the Dirac and electromagnetic fields (quantum electrodynamics), we can start by analyzing a classical theory of these fields. In such a classical field theory, the electron has a spread-out distribution of charge that avoids some of the problems of self-interaction facing point charge models. However, there remains the problem that the electron will experience self-repulsion. This (...) self-repulsion cannot be eliminated within classical field theory without also losing Coulomb interactions between distinct particles. But, electron self-repulsion can be eliminated from quantum electrodynamics in the Coulomb gauge by fully normal-ordering the Coulomb term in the Hamiltonian. After normal-ordering, the Coulomb term contains pieces describing attraction and repulsion between distinct particles and also pieces describing particle creation and annihilation, but no pieces describing self-repulsion. (shrink)

Electronic Health Records (EHRs) are organized around two kinds of statements: those reporting observations made, and those reporting acts performed. In neither case does the record involve any direct reference to what such statements are actually about. They record not: what is happening on the side of the patient, but rather: what is said about what is happening. While the need for a unique patient identifier is generally recognized, we argue that we should now move to an EHR regime (...) in which all clinically salient particulars – from the concrete disorder on the side of the patient and the body parts in which it occurs to the concrete treatments given – should be uniquely identified. This will allow us to achieve interoperability among different systems of records at the level where it really matters: in regard to what is happening in the real world. It will also allow us to keep track of particular disorders and of the effects of particular treatments in a precise and unambiguous way. We discuss the ontological and epistemological aspects of our claim and describe a scenario for implementation within EHR systems. (shrink)

Electronic machinic phenomena yield fascinating links with biological processes. Either in the macro-micro-structure of binary encoded information ‐ bytes on media ‐ to the processual flow programs execute on hardware while operating it. Observing micro-electronic worlds akin to living entities: electronic voltages running throughout electronic architectures pipelining data to memory registers; operating systems executing programs on electronic substrates; data flows taking place in machines and in communications protocols within networks. Static art-sci constructs explore and visualize (...) these observations as 2D drawings (Neon Paleolitikos Drawings, 2017‐present) or 3D sculptures (Binary and Biological Sculpture Series, 2018‐present), creatively exposing their inherent rhythmic organization of information, while dynamic installations (Phoenix.Wolfanddotcom.info, Wolfanddotcom, Half-Plant, 2017, Ant Ennae Labyrinths, 2019‐present) propose immersive interference mechanisms that attempt user entanglement in non-human environments. Seven aesthetic case examples are introduced and explored, observing and seeking resonances between micro-granular electronic, biological and hybrid data as source synthesis. This research proposes a look at bio-electronic aggregates on Neon Paleolitikos strata. After the Anthropocene, Neon Paleolitikos is an imaginary epoch dating since the decline of mankind until the zenith of bio-electronic life forms: operational symbioses combined among ruins of silica, transistors, algorithms, cells, plants, animals and electricity. (shrink)

The first electron back-scattered diffraction Kikuchi patterns and grain orientation maps were captured for pure n -phase Ce. The sample preparation technique used for electron back-scattered diffraction orientation mapping of this surface-reactive metal included ion sputtering the surface using a scanning Auger microprobe followed by vacuum transfer of the sample from the scanning Auger microprobe to the scanning electron microscope. The effect of ion sputtering on the microstructure as well as preliminary electron back-scattered diffraction microstructural characterization is presented. Based on (...) the sputtering data, the room-temperature diffusivity of O in n -Ce was estimated. (shrink)

(2013). Electronic Fences Make Good Neighbors: The Importance of Medical Records Managers to Protecting Autonomy. The American Journal of Bioethics: Vol. 13, No. 4, pp. 50-52. doi: 10.1080/15265161.2013.767965.

Cryo‐electron microscopy allows the visualization of macromolecules in their native state. Combined with techniques of three‐dimensional reconstruction, cryo‐EM images of single molecules can be used to study macromolecular interactions. The ribosome, a large RNA–protein complex with multiple binding interactions, is an excellent test case illustrating the power of these new techniques. Conformational changes during the binding of tRNA and protein factors to the ribosome can now be studied without the interference of crystal packing. Now that the first X‐ray structures of (...) ribosomal subunits have become available, conformational changes observed by cryo‐EM in different functional states can be traced back to internal rearrangements of the underlying structural framework. Electron microscopy, X‐ray crystallography, and modeling should be used together in the endeavor to understand the functioning of the translational machinery. BioEssays 23:725–732, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

Assessment is an important cornerstone of education. A world trend in staying abreast of the latest developments in the field of information and communication technology (ICT) has led to an increased demand for electronic assessment in education circles. The critical need and responsibility for higher education to stay on par with the latest techniques regarding assessment subsequently led the University of Johannesburg (UJ) to implement electronic assessment in some departments in 2004. Several challenges led to this exploration into (...) the use of one e?assessment tool within the University. (shrink)

This essay introduces an approach to teach electronic literature in English Studies students; first introduces to the students what electronic literature is, that is, its main features, goals and genres. Secondly, it provides examples of women writers and their importance in the development of this kind of literature. Thirdly, it shows two electronic literary works written by women that may be part of the course’s core readings. This article dives into and breaks apart these literary texts through (...) an introduction and a close reading of them. (shrink)

In December 1924 Wolfgang Pauli proposed the idea of an inner degree of freedom of the electron, which he insisted should be thought of as genuinely quantum mechanical in nature. Shortly thereafter Ralph Kronig and, independently, Samuel Goudsmit and George Uhlenbeck took up a less radical stance by suggesting that this degree of freedom somehow corresponded to an inner rotational motion, though it was unclear from the very beginning how literal one was actually supposed to take this picture, since it (...) was immediately recognised that it would very likely lead to serious problems with Special Relativity if the model were to reproduce the electron's values for mass, charge, angular momentum, and magnetic moment. However, probably due to the then overwhelming impression that classical concepts were generally insufficient for the proper description of microscopic phenomena, a more detailed reasoning was never given. In this contribution I shall investigate in some detail what the restrictions on the physical quantities just mentioned are, if they are to be reproduced by rather simple classical models of the electron within the framework of Special Relativity. It turns out that surface stresses play a decisive role and that the question of whether a classical model for the electron does indeed contradict Special Relativity can only be answered on the basis of an exact solution, which has hitherto not been given. (shrink)

This paper employs the ideas of geometric algebra to investigate the physical content of Dirac's electron theory. The basis is Hestenes' discovery of the geometric significance of the Dirac spinor, which now represents a Lorentz transformation in spacetime. This transformation specifies a definite velocity, which might be interpreted as that of a real electron. Taken literally, this velocity yields predictions of tunnelling times through potential barriers, and defines streamlines in spacetime that would correspond to electron paths. We also present a (...) general, first-order diffraction theory for electromagnetic and Dirac waves. We conclude with a critical appraisal of the Dirac theory. (shrink)

Electronic mail creates special opportunities and burdens for academicians and others. This article first describes e-mail and how it works in a university setting. It then presents the transcript of an electronic exchange over the issue of multiple or repeat abortion. The debate was inspired by a case presented during "ethics rounds" for students at a university medical center. The value of e-mail in this case is considered, and the electronic medium is found to be useful for (...) sharing ideas and stimulating debate about issues in medical ethics, as well as for educational purposes. (shrink)