Preface to the Seventh Edition Since the first edition of this work in 1986, enormous changes have occurred in professional ethics in Arkansas: the ...

Questions are raised about the potential of embryo cloning, or blastomere separation, both to increase the rate of pregnancy following in vitro fertilization and to provide sufficient material for preimplantation genetic diagnosis. Nevertheless, it is concluded that research on blastomere separation in the human should continue.

Focused on the field of knowledge lying between digital and analog circuit theory, this new text will help engineers working with digital systems shorten their product development cycles and help fix their latest design problems. The scope of the material covered includes signal reflection, crosstalk, and noise problems which occur in high speed digital machines (above 10 megahertz). This volume will be of practical use to digital logic designers, staff and senior communications scientists, and all those interested in digital design.

School violence is a burning issue these days. This book provides an in-depth analysis of violence prevention programs and an assessment of their effectiveness, using data from observations, individual interviews, and focus groups, as well as published data from the schools. It is distinguished by its focus on the cultural and structural context of school violence and violence prevention efforts. Where most other researchers use quantitative measures, such as surveys, to assess the effectiveness of violence prevention programs, the authors of (...) this book use qualitative research and ethnography to study the environment where such programs take place. Thus, this work--one of only a few ethnographic studies of violence prevention programs in schools--links previous quantitative research on the topic and critical ethnography. _Preventing Violence in Schools: A Challenge to American Democracy_: *includes voices of school students, accused of practicing violence, who have been participants in violence prevention programs; *analyzes a citywide peer mediation program ; *examines the kinds of violence recognized in schools and the ways schools themselves may perpetuate violence; and *describes a violence prevention program for students at an alternative school. _Preventing Violence in Schools: A Challenge to American Democracy_ is highly relevant for students in courses on urban education, foundations of education, education and social policy, youth and the law, and qualitative research, and for teachers, administrators, and other professionals, such as school psychologists and guidance counselors, at the middle and high school levels. (shrink)

The present study applies a new method for investigating dynamic unconscious processes. The method consists of selection of words from patient interview and test protocols that in the clinicians' judgments capture the patients' conscious symptom experience and the hypothetical unconscious conflict related to the symptom, subliminal and supraliminal presentation of these words, signal analysis of event-related potentials obtained to the word presentations. Eight phobics and three patients suffering from pathological grief reactions served as subjects. A time-frequency ERP analysis revealed that (...) subjects' ERPs classified the unconscious conflict words better subliminally than supraliminally, while the reverse was true for the conscious symptom words = 2.82, p = .011). The relationship between frequency and latency revealed a similar mirror image pattern for the unconscious conflict and conscious symptom words . This method demonstrated that objective, brain-based evidence for unconscious conflict can be obtained. (shrink)

In this paper I argue for worker self-management of the media, particularly the press. I begin with a general argument for self-management of enterprises. Then I consider and respond to objections to my proposal arising from the distinctive character of media, their social and political functions, and their legal status. I argue that not only would self-management not conflict with the function of enabling citizens to be informed and participate equally in social and political life, but it would enable media (...) to better perform their function than when controlled by either government or concentrated commercial corporations. But self-managed media would require some rethinking of the meaning of press freedom. And self-management would itself need to be supplemented with other measures such as rights of access to ensure equality of freedom of expression. (shrink)

This paper sets out to account for conflicting interpretations of Rawls’ theory of justice by Marxian critics, by uncovering an unresolved contradiction in the theory between individualist and communitarian values. The contradiction comes to light particularly in the more egalitarian interpretation of Rawls, and can only be overcome by incorporating a fuller theory of the good than that with which Rawls has provided us. It may not be possible to do this without giving up the claim that the theory of (...) justice articulates the considered judgments of all thoughtful persons in our society, irrespective of class or ideology. (shrink)

Several issues are raised concerning the notion that a single strategy explains Fitts' law and the linear speed/accuracy trade-off. Two additional concerns are discussed: (1) distance is programmed, (2) the fact that movements produced without the aid of vision obey Fitts' law does not mean that sighted movements must be explained without regard to vision.

This innovative volume attempts to bridge the theoretical gulf between the two approaches by providing objective evidence for unconscious conflict in...

Previous research has shown that short-term fasting in healthy individuals is associated with changes in risky decision-making. The current experiment was designed to examine the influence of short-term fasting in healthy individuals on four types of impulsivity: reflection impulsivity, risky decision-making, delay aversion, and action inhibition. Participants were tested twice, once when fasted for 20 hours, and once when satiated. Participants demonstrated impaired action inhibition when fasted; committing significantly more errors of commission during a food-related Affective Shifting Task. Participants also (...) displayed decreased reflection impulsivity when fasted, opening significantly more boxes during the Information Sampling Task (IST). There were no significant differences in performance between fasted and satiated sessions for risky decision-making or delay aversion. These findings may have implications for understanding eating disorders such as Bulimia Nervosa (BN). Although BN has been characterised as a disorder of poor impulse control, inconsistent findings when comparing individuals with BN and healthy individuals on behavioural measures of impulsivity question this characterisation. Since individuals with BN undergo periods of short-term fasting, the inconsistent findings could be due to differences in the levels of satiation of participants. The current results indicate that fasting can affect performance on the IST, a measure of impulsivity previously studied in BN, whilst performance on other impulsivity measures were unaffected. However, the results from the IST were contrary to the original hypothesis and should be replicated before specific conclusions can be made. (shrink)

The proposal that the criminal justice system should focus on rehabilitation – rather than retribution, deterrence, or expressive denunciation – is among the least popular ideas in legal philosophy. Foremost among rehabilitation’s alleged weaknesses is that it views criminals as blameless patients to be treated, rather than culpable moral agents to be held accountable. This article offers a new interpretation of the rehabilitative approach that is immune to this objection and that furnishes the moral foundation that this approach has lacked. (...) The view rests on the principle that moral agents owe it to one another to maintain the dependability of their moral capacities. Agents who culpably commit criminal wrongs, however, betray an unacceptable degree of moral unreliability. Punishment, on this theory, consists in the enforcement of the duties that offenders have to reduce their own likelihood of recidivism. (shrink)

Gap junction intercellular communication channels permit the exchange of small regulatory molecules and ions between neighbouring cells and coordinate cellular activity in diverse tissue and organ systems. These channels have short half‐lives and complex assembly and degradation pathways. Much of the recent work elucidating gap junction biogenesis has featured the use of connexins (Cx), the constituent proteins of gap junctions, tagged with reporter proteins such as Green Fluorescent Protein (GFP) and has illuminated the dynamics of channel assembly in live cells (...) by high‐resolution time‐lapse microscopy. With some studies, however, there are potential short‐comings associated with the GFP chimeric protein technologies. A recent report by Gaietta et al., has highlighted the use of recombinant proteins with tetracysteine tags attached to the carboxyl terminus of Cx43, which differentially labels ‘old’ and ‘new’ connexins thus opening up new avenues for studying temporal and spatial localisation of proteins and in situ trafficking events.1 BioEssays 24:876–880, 2002. © 2002 Wiley Periodicals, Inc. (shrink)