Kinetochores can form and be maintained on DNA sequences that are normally non‐centromeric. The existence of these so‐called neo‐centromeres has posed the problem as to the nature of the epigenetic mechanisms that maintain the centromere. Here we highlight results that indicate that the amount of CENP‐A at human centromeres is tightly regulated. It is also known that kinetochore assembly requires sister chromatid cohesion at mitosis. We therefore suggest that separation or stretching between the sister chromatids at metaphase reciprocally determines the (...) amount of centromere assembly in the subsequent interphase. This reciprocal relationship forms the basis of a negative feedback loop that could precisely control the amount of CENP‐A and faithfully maintain the presence of a kinetochore over many cell divisions. We describe how the feedback loop would work, propose how it could be tested experimentally and suggest possible components of its mechanism. (shrink)

Domain constraint, the requirement that analogues be selected from "the same category," inheres in the popular saying "you can't compare apples and oranges" and the textbook principle "the greater the number of shared properties, the stronger the argument from analogy." I identify roles of domains in biological, linguistic, and legal analogy, supporting the account of law with a computer word search of judicial decisions. I argue that the category treatments within these disciplines cannot be exported to general informal logic, where (...) the relevance of properties, not their number, must be the logically prior criterion for evaluating analogical arguments. (shrink)

This article leverages insights from the body of Adam Smith’s work, including two lesser-known manuscripts—the Theory of Moral Sentiments and Lectures in Jurisprudence —to help answer the question as to how companies should morally prioritize corporate social responsibility (CSR) initiatives and stakeholder claims. Smith makes philosophical distinctions between justice and beneficence and perfect and imperfect rights, and we leverage those distinctions to speak to contemporary CSR and stakeholder management theories. We address the often-neglected question as to how far a company (...) should be expected to go in pursuit of CSR initiatives and we offer a fresh perspective as to the role of business in relation to stakeholders and to society as a whole. Smith’s moral insights help us to propose a practical framework of legitimacy in stakeholder claims that can help managers select appropriate and responsible CSR activities. (shrink)

1 Evidence-based policy requires researchers to provide the answers to ecological questions that are of interest to policy makers. To find out what those questions are in the UK, representatives from 28 organizations involved in policy, together with scientists from 10 academic institutions, were asked to generate a list of questions from their organizations. 2 During a 2-day workshop the initial list of 1003 questions generated from consulting at least 654 policy makers and academics was used as a basis for (...) generating a short list of 100 questions of significant policy relevance. Short-listing was decided on the basis of the preferences of the representatives from the policy-led organizations. 3 The areas covered included most major issues of environmental concern in the UK, including agriculture, marine fisheries, climate change, ecosystem function and land management. 4 The most striking outcome was the preference for general questions rather than narrow ones. The reason is that policy is driven by broad issues rather than specific ones. In contrast, scientists are frequently best equipped to answer specific questions. This means that it may be necessary to extract the underpinning specific question before researchers can proceed. 5 Synthesis and applications. Greater communication between policy makers and scientists is required in order to ensure that applied ecologists are dealing with issues in a way that can feed into policy. It is particularly important that applied ecologists emphasize the generic value of their work wherever possible. (shrink)

Scapula mobility complicates upper extremity kinematics assessment. Existing methods are diverse, providing inconsistent results. The current gold standard (bone pins) is prohibitively invasive. The purposes of the current study are to describe a virtual projection alternative to surface markers for video motion capture (VMC) of the scapula and to compare the results of the projection and surface marker methods to the results of similar existing methods. Ten participants were evaluated using VMC. Surface markers were applied to the trunk and arm (...) in accordance with existing guidelines. Three markers were affixed to plastic base on the skin over the acromion process. Other scapular landmarks were digitized in a neutral position. These landmarks’ locations were defined in reference to the acromion cluster and used to generate the projection. Humerothoracic, glenohumeral, and scapulothoracic kinematics were evaluated during shoulder abduction, flexion, and scaption. Joint angles produced by the surface markers and the projection were compared by Bonferroni-adjusted t tests. The results were compared to prior findings in the literature. The projection resulted in greater scapulothoracic upward rotation, internal rotation, and anterior–posterior tilt and less glenohumeral elevation (p <.0055) than did surface markers. The virtual scapula produced greater estimates of scapular mobility than did surface markers, corresponding to pre-existing results from similar methodologies. The result is a noninvasive measurement tool that produces different and superior results than do scapula surface markers. Measuring scapula kinematics via VMC without bone pins will facilitate future investigations into interactions between upper extremity injury, kinematics, and activity performance. (shrink)

At the forefront of international concerns about global legislation and regulation, a host of noted environmentalists and business ethicists examine ethical issues in consumption from the points of view of environmental sustainability, economic development, and free enterprise.

Only a few studies have disaggregated homicide rates by relationship type or gender, with little investigation of homicide trends in adult marital and other intimate relationships. The current study documents patterns of homicide between opposite gender relational partners for the twelve years of 1976 through 1987 based on Supplementary Homicide Report Data, comparing rates between couples in marital and nonmarital relationships. Analyses reveal that the homicide rate for married couples declined somewhat during this period, although the drop in the rate (...) of wives killing husbands was greater than the drop in the rate of husbands killing wives. However, homicides involving unmarried couples followed a very different pattern. Whereas the lethal victimization rate for men in unmarried relationships varied unsystematically over time from 1976 through 1987, the rate of unmarried women being killed by their male partners increased significantly. Findings demonstrate the importance of disaggregating homicide data by gender and relationship type so that crucial differences can be detected. (shrink)

It describes and explains the patient-centered model examining and evaluating qualitative and quantitative research. It comprehensively covers the evolution and the six interactive components of the patient-centered clinical method, taking the reader through the relationships between the patient and doctor and the patient and clinician. All the editors are professors in the Department of Family Medicine at the University of Western Ontario, London, Canada.

Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity; quasi-experimental designs that either lack a control group or lack pretest observations on the outcome; quasi-experimental designs that use both control groups and pretests; quasi-experiments: interrupted time-series designs; regresssion discontinuity designs; randomised experiments: rationale, designs, and conditions conducive to doing them; practical problems 1: ethics, participation recruitment and random assignment; practical problems 2: treatment implementation and attrition; generalised causal inference: a grounded theory; (...) generalised causal inference: methods for single studies; generalised causal inference: methods for multiple studies; a critical assessment of our assumptions. (shrink)

William R. Caspary makes the case for Dewey as a more discerning and challenging political theorist than this.

William Uttal is concerned that in an effort to prove itself a hard science, psychology may have thrown away one of its most important methodological tools—a critical analysis of the fundamental assumptions that underlie day-to-day empirical research. In this book Uttal addresses the question of localization: whether psychological processes can be defined and isolated in a way that permits them to be associated with particular brain regions. New, noninvasive imaging technologies allow us to observe the brain while it is (...) actively engaged in mental activities. Uttal cautions, however, that the excitement of these new research tools can lead to a neuroreductionist wild goose chase. With more and more cognitive neuroscientific data forthcoming, it becomes critical to question their limitations as well as their potential. Uttal reviews the history of localization theory, presents the difficulties of defining cognitive processes, and examines the conceptual and technical difficulties that should make us cautious about falling victim to what may be a "neo-phrenological" fad. (shrink)

It no longer is true in a metaphorical sense only that a person can have a change of heart. We might grant this much — allow that a person may have one heart at one time and have another heart at still another time — and also resist the idea that a person can have a change of mind in anything other than a qualitative sense. In the discussion that follows, this standard view of the matter is called into question. (...) If the argument presented here is sound, it can happen both that one person has numerically different minds at different times and that different people have the same mind at different times. These possibilities, as I take them to be, call for reassessment of some well entrenched assumptions concerning personal identity and responsibility. In particular, they suggest that it may not be true that person A bears responsibility for making decisions person B previously made only on the condition that A is the same person as B. (shrink)

Endosperm is emerging as a system for investigating the genetic control of wall placement and deposition in plant development. Development of endosperm progresses in distinct stages from a wall‐less syncytial stage to a cellular stage that is entirely typical of plant meristems where the division plane is predicted by a preprophase band of microtubules (PPB) and cytokinesis is completed by formation of a cell plate in association with a phragmoplast. Four developmentally different types of walls, each associated with a different (...) microtubule system, are sequentially produced: (1) free growing walls deposited in the absence of mitosis and phragmoplasts; (2) walls guided by cytoplasmic phragmoplasts formed adventitiously in the absence of mitosis; (3) walls formed by interzonal phragmoplasts in a cell cycle that lacks PPBs; and (4) wall deposition driven by interzonal phragmoplasts in a cycle that includes PPBs. We are using methods of differential screening to isolate cDNA clones corresponding in temporal and spatial pattern to the types of wall development, and are studying mutants for clues to the genetic controls of wall development. (shrink)

Lawsuits alleging illegal and unethical insurance sales practices have received widespread publicity in recent years. Although many observers have argued that one source of ethical conflicts for insurance agents is the industry's reliance on straight commission compensation, there remains a paucity of empirical data to support the claim. Therefore, we tested whether different forms of compensation influence insurance agent recommendations of products. We obtained survey responses from 336 insurance agents. Respondents were presented with a composite sketch of a hypothetical client. (...) Following this description, they were asked to identify which one of eight specified life insurance products they would recommend to the client. A between-groups design was employed to manipulate differences in compensation associated with the eight products. Results indicated that neither amount of coverage nor type of coverage (term life versus cash value) recommended was associated with compensation. However, an unanticipated finding was that amount of coverage recommended was significantly higher when the insured was male than when the insured was female. (shrink)

During the past few decades a growing interest in what is often called the ‘Kyoto School’ of philosophy has evidenced itself here and there in the West, especially in discussions of comparative religious thought and in the pages of journals which are sensitive, in the post-colonial world, to the value of giving attention to contemporary thought that originates outside the Anglo-American and continental contexts. What has made the so-called Kyoto School especially interesting is the fact that those thinkers identified with (...) it obviously possess a wide acquaintance with Western thought but also have a programme of clarifying points at which they, as Japanese philosophers, find Western philosophy either in sum or in its parts inadequate or objectionable. Moreover, inasmuch as the philosophers of the Kyoto School have deliberately reached back into the Mahayana Buddhist component in Japanese civilization in order to find terms, perspectives, and even foundations for their own analyses and constructions, Western students of comparative religion and comparative thought have in the study of this school a unique aperture for observing how a group of thinkers, while sharing modernity and its problems with us, reates both of these to a religious tradition which is in many ways strikingly different from that of the West. (shrink)

En este breve ensayo, se trata de exponer el hecho de la evolución de la adolescencia,actualmente enfocada en una manada atomizada de individuos inmersos en lacultura visual y multimedia que centralizan sus acciones de consumo en dispositivosde pantalla. De la cultura del libro se ha pasado a la cultura de la imagen propia.La “curación” de la adolescencia (adolecer) y del refugio en la manada implican elpaso del tiempo y la maduración reflexiva que este puede traer; implican tolerarel no saber a (...) dónde ir para adquirir el sentido de vivir en una sociabilización adecuaday con autonomía. La carencia de sentido en la vida produce aburrimientoy fastidio para quien busca placer que frecuentemente confunde con felicidad.La pérdida de la figura del varón como protector ocasiona frecuentes crisis en laestructura familiar. La falta de empleo significa la ausencia de pertenencia. Aun así,numerosos adolescentes reaccionan proponiéndose quijotescamente realizar algogrande con sus vidas. La historia está hecha de grandes personas que se hicieron apesar de los ambientes adversos. (shrink)

Despite the fact that psychedelics were proscribed from medical research half a century ago, recent, early-phase trials on psychedelics have suggested that they bring novel benefits to patients in the treatment of several mental and substance use disorders. When beneficial, the psychedelic experience is characterized by features unlike those of other psychiatric and medical treatments. These include senses of losing self-importance, ineffable knowledge, feelings of unity and connection with others and encountering ‘deep’ reality or God. In addition to symptom relief, (...) psychedelic experiences often lead to significant changes in a patient’s personality and worldview. Focusing on the case of psilocybin, we argue that the peculiar features of psychedelics pose certain novel risks, which warrant an enhanced informed consent process–one that is more comprehensive than what may be typical for other psychiatric medications. We highlight key issues that should be focused on during the consent process and suggest discussion prompts for enhanced consent in psychedelic psychiatry. Finally, we respond to potential objections before concluding with a discussion of ethical considerations that will arise as psychedelics proceed from highly controlled research environments into mainstream clinical psychiatry. (shrink)

The article investigates a system of polymorphically typed combinatory logic which is equivalent to Gödel’s T. A notion of (strong) reduction is defined over terms of this system and it is proved that the class of well-formed terms is closed under both bracket abstraction and reduction. The main new result is that the number of contractions needed to reduce a term to normal form is computed by an ε 0-recursive function. The ordinal assignments used to obtain this result are also (...) used to prove that the system under consideration is indeed equivalent to Gödel’s T. It is hoped that the methods used here can be extended so as to obtain similar results for stronger systems of polymorphically typed combinatory terms. An interesting corollary of such results is that they yield ordinally informative proofs of normalizability for sub-systems of second-order intuitionist logic, in natural deduction style. (shrink)

Ethics, communication skills, and the law ('practice skills') are important in all aspects of modern health care. Doctors and nurses must be sensitive to the ethical aspects of their work and understand the legal framework within which clinical decisions are made. Well developed skills of communication, with patients, their relatives and other members of the clinical team, are a key feature of good clinical practice Until recently, the important of practice skills has been relatively neglected in health care education. This (...) situation is changing. The UK General Medical Council, for example, has recently identified three aspects as part of the core of the medical course, and the move to degree courses in nursing has led to an increasing focus of practice skills in nurse education. The Oxford Practice Skills Project (OPSP) team have developed a course, within the University of Oxford Clinical School, which covers the teaching of practice skills in an integrated manner. This course is widely recognized as one of the most systematic developments of education in these areas. This manual describes the OPSP course in detail and provides teaching materials. Although developed initially for medical students, it should be helpful to all those involved in teaching ethics, communication skills, and law in health care. Each Seminar is described in detail Tutors' guides are provided Student handouts are included Contains guidelines for introducing 'practice skills' into a busy clinical curriculum Includes over forty case histories for teaching and examination Gives details of many useful sources and resources Details a variety of teaching methods together with their advantages and disadvantages Provides an ethics teaching toolkit for clinical teachers new to this area Readers are welcome to photocopy any part of this manual for their own teaching. (shrink)

Why would a country strongly influenced by Buddhism's reverence for life allow legalized, widely used abortion? Equally puzzling to many Westerners is the Japanese practice of mizuko rites, in which the parents of aborted fetuses pray for the well-being of these rejected "lives." In this provocative investigation, William LaFleur examines abortion as a window on the culture and ethics of Japan. At the same time he contributes to the Western debate on abortion, exploring how the Japanese resolve their conflicting (...) emotions privately and avoid the pro-life/pro-choice politics that sharply divide Americans on the issue. (shrink)