According to structural realism, in mature science there is structural continuity along theoretical change. A major counterexample to this thesis is the transition from the Eightfold Way to the Standard Model in particle physics. Nevertheless, the notion of structure is significantly important in comprehending the theoretical picture of particle physics, where particles change and undergo transmutations, while the only thing which remains unchanged is the basic structure, i.e. the symmetry group which controls the transmutations. This kind of view agrees with (...) the paradigmatic case where the structure is an internal symmetry and the instantiations are the elementary particles. The metaphysical view which reflects this situation is a version of ontic structuralism. (shrink)

We prove that the theory of all sentences in the language of rings which are true in for almost all is decidable. Here is the field of all algebraic numbers; is the ring of all algebraic integers; is the absolute Galois group of ; for each , is the fixed field of σ1,…,σe in ; and the clause ‘almost all’ is used in the sense of the Haar measure of.

Contributed articles presented at the Colombo Conference on "Building Spirituality and Culture of Peace Beyond Globalization" held on Aug. 13-16, 2003; with reference to Asia and Africa.

In this paper, I try to decipher the role of internal symmetries in the ontological maze of particle physics. The relationship between internal symmetries and laws of nature is discussed within the framework of “Platonic realism.” The notion of physical “structure” is introduced as representing a deeper ontological layer behind the observable world. I argue that an internal symmetry is a structure encompassing laws of nature. The application of internal symmetry groups to particle physics came about in two revolutionary steps. (...) The first was the introduction of the internal symmetries of hadrons in the early 1960s. These global and approximate symmetries served as means of bypassing the dynamics. I argue that the realist could interpret these symmetries as ontologically prior to the hadrons. The second step was the gauge revolution in the 1970s, where symmetries became local and exact and were integrated with the dynamics. I argue that the symmetries of the second generation are fundamental in the following two respects: According to the so-called “gauge argument,” gauge symmetry dictates the existence of gauge bosons, which determine the nature of the forces. This view, which has been recently criticized by some philosophers, is widely accepted in particle physics at least as a heuristic principle. In view of grand unified theories, the new symmetries can be interpreted as ontologically prior to baryon matter. (shrink)

ʻEdut be-Hosef -- Derekh ʻets ha-ḥayim -- Refuʼat ha-nefesh -- ha-Tapuaḥ.

A new view of the functional role of the left anterior cortex in language use is proposed. The experimental record indicates that most human linguistic abilities are not localized in this region. In particular, most of syntax (long thought to be there) is not located in Broca's area and its vicinity (operculum, insula, and subjacent white matter). This cerebral region, implicated in Broca's aphasia, does have a role in syntactic processing, but a highly specific one: It is the neural home (...) to receptive mechanisms involved in the computation of the relation between transformationally moved phrasal constituents and their extraction sites (in line with the Trace-Deletion Hypothesis). It is also involved in the construction of higher parts of the syntactic tree in speech production. By contrast, basic combinatorial capacities necessary for language processing – for example, structure-building operations, lexical insertion – are not supported by the neural tissue of this cerebral region, nor is lexical or combinatorial semantics. The dense body of empirical evidence supporting this restrictive view comes mainly from several angles on lesion studies of syntax in agrammatic Broca's aphasia. Five empirical arguments are presented: experiments in sentence comprehension, cross-linguistic considerations (where aphasia findings from several language types are pooled and scrutinized comparatively), grammaticality and plausibility judgments, real-time processing of complex sentences, and rehabilitation. Also discussed are recent results from functional neuroimaging and from structured observations on speech production of Broca's aphasics. Syntactic abilities are nonetheless distinct from other cognitive skills and are represented entirely and exclusively in the left cerebral hemisphere. Although more widespread in the left hemisphere than previously thought, they are clearly distinct from other human combinatorial and intellectual abilities. The neurological record (based on functional imaging, split-brain and right-hemisphere-damaged patients, as well as patients suffering from a breakdown of mathematical skills) indicates that language is a distinct, modularly organized neurological entity. Combinatorial aspects of the language faculty reside in the human left cerebral hemisphere, but only the transformational component (or algorithms that implement it in use) is located in and around Broca's area. Key Words: agrammatism; aphasia; Broca's area; cerebral localization; dyscalculia; functional neuroanatomy; grammatical transformation; modularity; neuroimaging; syntax; trace deletion. (shrink)

As opposed to the computer, the human being can intentionally mislead in many different ways, can behave chaotically, and whenever he has the motivation can choose also by improvisation, non‐consequent misleading, and spontaneous manners of reasoning and articulation. Human perception and the elaboration of the experience are existentially interest‐related, and distorted if found necessary. The arbitrariness is unlimited; human beings can initiate and produce absurd combinations, contextual failures and deceptive expressions, and do so also by intonation and body‐language. These are (...) the sources of social behaviour, of literature, arts, jurisprudence, politics, etc., all representing systems of meaning constructed by human beings, present in their ‘Lebenswelt’. Human beings are flexible, sensible of emotions and well‐trained to code and decode hidden fallacies, to produce wild associations, capricious‐temporary conclusions, tasks that the rigid computer cannot fulfil. They can choose incorrect and dysfunctional answers; the exactness of their reasoning can be logically invalid. The computer has only inner horizons; human beings have also outer ones, in which they are able to produce multidimensional relationships. They are not truth‐conditioned.The reduction of organic human thinking to the computer’s mechanisms can end up in humankind’s dehumanisation. (shrink)

As opposed to the computer, the human being can intentionally mislead in many different ways, can behave chaotically, and whenever he has the motivation can choose also by improvisation, non‐consequent misleading, and spontaneous manners of reasoning and articulation. Human perception and the elaboration of the experience are existentially interest‐related, and distorted if found necessary. The arbitrariness is unlimited; human beings can initiate and produce absurd combinations, contextual failures and deceptive expressions, and do so also by intonation and body‐language. These are (...) the sources of social behaviour, of literature, arts, jurisprudence, politics, etc., all representing systems of meaning constructed by human beings, present in their ‘Lebenswelt’. Human beings are flexible, sensible of emotions and well‐trained to code and decode hidden fallacies, to produce wild associations, capricious‐temporary conclusions, tasks that the rigid computer cannot fulfil. They can choose incorrect and dysfunctional answers; the exactness of their reasoning can be logically invalid. The computer has only inner horizons; human beings have also outer ones, in which they are able to produce multidimensional relationships. They are not truth‐conditioned.The reduction of organic human thinking to the computer’s mechanisms can end up in humankind’s dehumanisation. (shrink)

The main message of this volume is that the creative process of discovery is not a purely rational enterprise in the traditional sense which equates rationality with logical reasoning, yet it is a manifestation of a universal phenomenon ...

The paper investigates the implications of a nonaprioristic philosophy of science. It starts by developing a scheme of justification which draws its norms from the prevailing paradigm of rationality, which need not be universal or external. If the requirement for normativity is then abandoned we do not end up with a descriptive philosophy of science. The alternative to a prescriptive philosophy of science is a theoretical explanation of scientific decisions and acts. Explanation, rather than mere description, replaces justification; and the (...) paradigm of rationality becomes a scientific paradigm. The implications of these results for the discovery-justification distinction are investigated. An explanatory philosophy of science deals with the generation, as well as with the selection of scientific conjectures: both contexts have an epistemic dimension. * This paper was written under the auspices of the Wolfson Chair Extrordinary of Theoretical Physics, Tel Aviv University. (shrink)

The Upper Palaeolithic Revolution, sometimes called ‘the Creative Explosion’, is seen as the period when the forefathers of modern forager societies emerged. Similarly to the Industrial and Neolithic Revolutions, it represents a short time span when numerous inventions appeared and cultural changes occurred. The inventions were in the domain of technology, that is, shaping of new stone tool forms, longdistance exchange of raw materials, the use of bone, antler and ivory as well as rare minerals for the production of domestic (...) and ritual objects. Spatial analysis of ‘living floors’ indicates the presence of a kitchen area, sleeping grounds, storage facilities (in certain regions) and a discard zone. We can also detect a certain increase in social hierarchy and the presence of shamans. Body decorations indicate the appearance of personal individuality. Several hypotheses were offered as an explanation for the initiation of all these cultural changes often grouped under the term ‘modern behaviour’. It stands to reason that attributing the new successful technologies observed in the Eurasian Upper Palaeolithic to intrinsic social processes and economic innovations by local Middle Palaeolithic populations would need a better archaeological demonstration than that available today. For the time being, the emergence of Modern humans in sub-Saharan Africa, their socio-economic dynamism that caused their expansion through the Nile Valley into the Near East, and their migration along the ‘southern route’ of Asia as far as Australia, is the most plausible scenario though it still leaves much to be desired from future archaeological research. (shrink)

The need for better incorporation of the construct emotional intelligence (EI) into counterproductive work behavior (CWB) research may be achieved via a unified conceptual framework. Accordingly, the purpose of this paper is to use the Profile Analysis via Multidimensional Scaling (PAMS) approach, a conceptual framework that unifies motivational process with antecedents and outcomes, to assess differences in EI concerning a variety of constructs: organizational justice, CWB, emotional exhaustion, job satisfaction, and intrinsic motivation. Employing established scales within a framework unifying CWB, (...) intrinsic motivation, EI, organizational justice, and outcome constructs, two EI-based profiles displayed associations with CWB based on responses from 3,293 employees. Both the first core profile, high overall justice and low emotional intelligence, and the second core profile, high emotional intelligence and low work motivation, displayed associations with interpersonal deviance and organizational deviance, as well as emotional exhaustion and job satisfaction. The results are discussed with respect to possible underlying theory and an overarching unified motivation framework that incorporates goal choice, intrinsic motivation, antecedents, and outcomes. We also provide directions for future research and implications for managers in the workplace based on heuristic conceptual frameworks that combine multiple motivational perspectives into a unified model. (shrink)

This essay focuses on proportionality stricto sensu as a consequential test of balancing. The basic balancing rule establishes a general criterion for deciding between the marginal benefit to the public good and the marginal limit to human rights. Based on the Israeli constitutional jurisprudence, this essay supports the adoption of a principled balancing approach that translates the basic balancing rule into a series of principled balancing tests, taking into account the importance of the rights and the type of restriction. This (...) approach provides better guidance to the balancer , restricts wide discretion in balancing, and makes the act of balancing more transparent, more structured, and more foreseeable. The advantages of proportionality stricto sensu with its three levels of abstraction are several. It stresses the need to always look for a justification of a limit on human rights; it structures the mind of the balancer; it is transparent; it creates a proper dialog between the political brunches and the judiciary, and it adds to the objectivity of judicial discretion. Proportionality stricto sensu however has it critics: some claim that it attempts to balance incommensurable items; others that balancing is irrational. The answer to the critics is that it is a common base for comparison, namely the social marginal importance and that the balancing rules—basic, principled, concrete—supply a rational basis for balancing. A democracy must entrust the judiciary—the unelected independent judiciary—to be the final decision-maker—subject to constitutional amendments—about proper ends that cannot be achieved because they are not proportionality stricto sensu. (shrink)

Many Jewish groups of late antiquity assumed that they were obligated to observe the Divine Law. This book attempts to study the various rationales offered by these groups to explain the authority that the Divine Law had over them. Second Temple groups tended to look towards philosophy or metaphysics to justify the Divine Law's authority. The tannaim, though, formulated legal arguments that obligate Israel to observe the Divine Law. While this turn towards legalism is pan-tannaitic, two distinct legal arguments can (...) be identified in tannaitic literature. These specific arguments about the Divine Law's authority, link to a set of issues regarding the tannaim's conception of Divine Law and of Israel's election. (shrink)

Removing a black hole conic singularity by means of Kruskal representation is equivalent to imposing extensibility on the Kasner–Fronsdal local isometric embedding of the corresponding black hole geometry. Allowing for globally non-trivial embeddings, living in Kaluza–Klein-like M 5 × S 1 (rather than in standard Minkowski M 6 ) and parametrized by some wave number k, extensibility can be achieved for apparently “forbidden” frequencies ω in the range ω 1 (k) ≤ ω ≤ ω 2 (k). As k → 0, (...) ω 1, 2 (0) → ωH (e.g., ωH = 1/4M in the Schwarzschild case) such that the Hawking–Gibbons limit is fully recovered. The various Kruskal sheets are then viewed as slices of the Kaluza–Klein background. Euclidean k discreteness, dictated by imaginary time periodicity, is correlated with flux quantization of the underlying embedding gauge field. (shrink)

Beyond Scandal will give you the resources to talk to your kinds about: Sex, Gossip, Lying, Politics, Scandal, Friendship, Values, Leadership, Dirty Jokes.

Determining Risk Factors and Demographic Patterns of Suicide in Tehran Suicide refers to the death of a person that is primarily achieved by self-harm. Today, it is considered one of the major public health issues. One of the important risk factors associated with attempted suicide is social relations. This study is a descriptive and analytical study that aims to identify the suicide rate, the risk factors in suicide, and the methods of suicide. The findings show that there is a significant (...) relationship between suicide and demographic variables that include age, sex, educational level, adherence to religion, and occupation. This research also shows the psychological factors that lead to suicide include depression, addiction, lack of social activities, and mental disorders caused by chronic disease. (shrink)

[1] Ṭohorah, yiḥud, hanhagat ha-bayit --.

kerekh 1. Ba-halakhah uve-agadah -- kerekh 2. [without special title].