Perforation or gap formation in a vegetation is a major process in landscape transformation. The occurrence of gaps profoundly alters the microclimatical conditions in a vegetation. A method is proposed to quantify perforation by using the three main 2-D characteristics of the gaps: area, number and boundary length. New measures are developed by normalizing the observed values to the reference status of minimum and maximum perforation. As minimum perforation status, the presence of one single gap with area equal to the (...) map resolution is assumed. The new measures are combined using a 3-D Euclidean distance to visualize the process and to detect changes. The method is exemplified using a field case of gaps in a tropical terra firme rainforest at Tiputini, Ecuador. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Transcendental Phenomenology as Human Possibility: Husserl and Fink on the Phenomenologizing Subject by Denis DŽANIĆD. J. HobbsDŽANIĆ, Denis. Transcendental Phenomenology as Human Possibility: Husserl and Fink on the Phenomenologizing Subject. Cham: Springer, 2023. x + 236 pp. Cloth, $119.99Denis Džanić’s Transcendental Phenomenology as Human Possibility, despite its superficially historical focus on a specific period of collaboration between Edmund Husserl and his somewhat wayward protégé Eugen Fink, addresses key (...) systematic issues in transcendental phenomenology, namely, how the act of phenomenologizing should be understood in connection with the specific human beings who aim to become phenomenologists, and what the answer to this question tells us about both the genuine subject of phenomenology and the motivation for phenomenologizing. These questions are important for our understanding of not only the historical development of phenomenology but also the practice and goals of phenomenology—specifically, for a conception of phenomenologizing as a project in which we, as particular, historical, empirical figures, might want to engage.Much of the book focuses on laying the groundwork for understanding these complicated issues both historically and systematically. Džanić does an admirable job of tracing the rapidly evolving interactions between Husserl and Fink, both as intellectual collaborators on this philosophical project and as a pair of very human figures who ultimately found themselves pursuing quite different solutions to the problems of the subject and origin of phenomenology. He focuses particularly on the Sixth Cartesian Meditation, Fink’s attempt to extend Husserl’s famous text to include a phenomenology of the act of phenomenologizing itself (including Husserl’s marginal comments on the text), although he draws on a number of other significant texts and manuscripts (mostly Husserl’s, albeit with an extended aside on Heidegger) wherever they are helpful for explicating the complex evolution of Husserl’s thought on the subject. Admittedly, the book thus takes on a challenging task—both because of the difficult nature of this topic and because of the obscurity of the technical terms required to discuss it. However, despite the necessarily enigmatic character of the relevant language, Džanić’s attempts to explore the main outlines of this issue are worthwhile, particularly due to his ability to resist the temptation to view Husserl’s thought here as monolithic.In the early chapters, Džanić explicates in detail the rather complicated solution that Fink proposed to this difficulty, namely, the abandonment (to some extent) of the ultimately human origin of phenomenology in favor of a fundamentally nonhuman (and eventually meontic) conception of the transcendental ego, which generated a great deal of elaborate and (at least in the Sixth Meditation) inadequately supported speculation. For Fink, both the motivation to phenomenologize and the act of phenomenologizing itself ultimately stem from a source that is fundamentally prior to—in a(n onto)logical rather than temporal sense—any empirical ego or empirical act of phenomenologizing, a source that merely “enworlds” itself (in various complicated senses that Džanić does [End Page 145] an admirable job of clarifying) in the apparently anthropologistic, everyday world of individual phenomenologists. Džanić calls this interpretation of phenomenology Fink’s “epistemological anti-humanism,” and it serves as the basis for one potential (radically anti-Heideggerian but nevertheless somewhat disappointing) solution to the question of why we should phenomenologize at all. As Džanić notes, this solution was at least briefly taken up by Fink’s mentor Husserl himself, although the degree to which Husserl actually endorsed this path beyond the level of a fleeting flirtation remains questionable. Ultimately, as Džanić rightly highlights and as becomes abundantly clear in Husserl’s (often rather scathing) notes on Fink’s Sixth Cartesian Meditation, he abandoned this interpretation.Accordingly, in the later chapters of the book, Džanić traces Husserl’s ultimate development of a quite different solution to the problems of the origin and motivation of phenomenology—a solution that, unlike his brief foray into Finkian grandeur, views the act of phenomenologizing as essentially rooted in human possibility (that is, as part of the famous lifeworld that features so prominently in Husserl’s work, especially in the Crisis and other late texts). After his collaboration with and... (shrink)

Multiple -conclusion logic extends formal logic by allowing arguments to have a set of conclusions instead of a single one, the truth lying somewhere among the conclusions if all the premises are true. The extension opens up interesting possibilities based on the symmetry between premises and conclusions, and can also be used to throw fresh light on the conventional logic and its limitations. This is a sustained study of the subject and is certain to stimulate further research. Part I reworks (...) the fundamental ideas of logic to take account of multiple conclusions, and investigates the connections between multiple - and single - conclusion calculi. Part II draws on graph theory to discuss the form and validity of arguments independently of particular logical systems. Part III contrasts the multiple - and the single - conclusion treatment of one and the same subject, using many-valued logic as the example; and Part IV shows how the methods of 'natural deduction' can be matched by direct proofs using multiple conclusions. (shrink)

This article aims at linking empirical research to legal theories, in a way that could enhance the benefits of this synergy. Jurisprudence, until recently the usual term for theoretical approaches to law, is now often replaced by the term legal theory. Difference between legal theory and empirical research is reflected in their consideration of subject matters, aims, and methods of research. However, there also exist commonalities between the two, i.e. both aim at comprehending law and legal systems. While legal theory (...) uses philosophical tools, its subject matter still remains a social phenomenon, for social ends. And since empirical research is a means to gather information about law, it could act as a prime source of information for legal theory. While empirical research has its own end to follow, what is missing is, attention to some legal theory, not just general legal theory, but which can also critique philosophical discourses to legality. (shrink)

We bring out the fact that the essential new quality implied by the quantum theory is nonlocality; i.e., that a system cannot be analyzed into parts whose basic properties do not depend on the state of the whole system. This is done in terms of the causal interpretation of the quantum theory, proposed by one of us (D.B.) in 2952, involving the introduction of the “quantum potential.” We show that this approach implies a new universal type of description, in which (...) the standard or canonical form is always supersystem-system-subsystem; and this leads to the radically new notion of unbroken wholeness of the entire universe. Finally, we discuss some of the implications of extending these notions to the relativity domain, and in so doing, we indicate a novel concept of time, in terms of which relativity and quantum theory may eventually be brought together. (shrink)

This article analyzes the complex relation of phenomenology and literature in the work of Husserl and Derrida. In the first part, I show that the limited ideality of the literary object necessarily situates it in a derivative region of phenomenology. In the second part, however, I problematize the regional status of literature by elaborating a brief but important footnote in which Husserl broadens the concept of literature to embrace all cultural products whatsoever. Yet, because even this broadened concept of literature (...) ultimately remains secondary for the phenomenologist, it only redoubles and ratifies the submission of literature to the more ideal objectivities of mathematical disciplines like geometry. The third part, finally, mobilizes Derrida’s notion of “dissemination,” prepared in and unintelligible apart from his early engagement with Husserlian phenomenology, in order to broach a notion of literature that the phenomenologist can neither circumscribe nor describe. (shrink)

Does South Africa need a common moral language? Many people are of the opinion that South Africa finds itself 'after Babel’ and needs a common moral language (1). The author considers some of the arguments of people who disagree with this analysis, because they do not define the problem in this way (2); because they find the language- or Babel-methaphor confusing (3); because they agree with the description of the problem, but not with the suggested solution, namely a common moral (...) language (4); or because they accept the solution, but do not regard it as the proper task of the Christian church to be involved in this search for a common moral language (5). (shrink)

Issues of resource allocationResource allocation, triageTriage, and rationingRationing decisions are common in the context of disasters and public healthPublic health emergencies, such as pandemics. However, to date, the majorityMajority of the literature focuses on an adult population with very little attention given to a pediatric population or to a population that may be mixed: adults and children. Furthermore, decisions of rationingRationing scarce resources do not only occur during disasters and other wide-scale emergencies. Such decisions are commonplace in pediatric organ transplantation (...) and can creep into areas of experimental medicine, such as xenotransplantation. This chapter explicates differences between pediatric and adult triageTriage decisions by first looking at the trifold issues of resource allocationResource allocation, triageTriage, and rationingRationing decisions mainly in the context of a disaster situation or public healthPublic health emergency. However, the issues of pediatric organ transplantation, health disparitiesHealth disparities, and experimental medicine will also be covered. (shrink)

I present an annotated development of the basic ideas of the Geneva School approach to the foundations of physics and the structures which emerge as mathematical representations of the physically dual notions of state and property.

Background: The traditional approach to resolving ethics concerns may not address underlying organisational issues involved in the evolution of these concerns. This represents a missed opportunity to improve quality of care “upstream”. The purpose of this study was to understand better which organisational issues may contribute to ethics concerns. Methods: Directed content analysis was used to review ethics consultation notes from an academic children’s hospital from 1996 to 2006 (N = 71). The analysis utilised 18 categories of organisational issues derived (...) and modified from published quality improvement protocols. Results: Organisational issues were identified in 68 of the 71 (96%) ethics consult notes across a range of patient settings and reasons for consultation. Thirteen of the 18 categories of organisational issues were identified and there was a median of two organisational issues per consult note. The most frequently identified organisational issues were informal organisational culture (eg, collective practices and approaches to situations with ethical dimensions that are not guided by policy), policies and procedures (eg, staff knows policy and/or procedural guidelines for an ethical concern but do not follow it) and communication (eg, communication about critical information, orders, or hand-offs repeatedly does not occur among services). Conclusions: Organisational issues contribute to ethical concerns that result in clinical ethics consults. Identifying and addressing organisational issues such as informal culture and communication may help decrease the recurrence of future similar ethics concerns. (shrink)

It is an unresolved question in quantum mechanics whether quantum states apply to individual quantum systems, or to ensembles of quantum systems. We show by way of a thought experiment that quantum states apply only to ensembles of quantum systems. A further unresolved question is whether quantum systems possess ontic states. If a quantum state is the state of an ensemble, as we claim, the answer to this question is that quantum states are not ontic. However, a notable recent result (...) in quantum foundations shows that if there are any ontic states at all, then the quantum state must be ontic. Collectively, these two results imply that there are no ontic states. We examine the assumptions required for these results, and suggest that the retrospective effect on state preparations by entangling measurements provides good reason for relaxing the assumption of preparation independence at the ontic level. (shrink)

Full text of erratum: "In the article by D.J. Buller, on p. 278, the y-axis label to Fig. IIb was incorrect. Instead of 'Percentage choosing "Eats cassava root" and "Tattoo," it should have read: 'Percentage choosing "Eats cassava root" and "No tattoo."' We apologise to readers for this error.".