At present there is an enormous discrepancy between our nanotechnological capabilities (particularly our nanobiotechnologies), our social wisdom, and consensus on how to apply them. To date, cost considerations have greatly constrained our application of nanotechnologies. However, novel advances in microsystem platform technologies are about to greatly diminish that economic constraint while developing new industries. Properly used in a solid legal and ethical framework, within an educated population, these advances will vastly enrich our quality of life without being intrusive. Improperly used, (...) these technologies could lead to a modern-day Luddism, social turmoil, or possibly even to emulating those societies described in the darkest of novels. These technologies must be developed in tandem with the social and legal frameworks needed to ensure that they improve both individuals and our society. To ensure that this occurs, we need to have the ethical, legal, scientific, and engineering experts working together and with the public. (shrink)

Microsystems are described as contexts formed by a subject, their roles, interactions, and a specific physical space and time, such as housing and the school environment. Although several studies suggest the importance of studying this type of environment and its repercussion on children's development, in a Latin American context few studies integrate the interaction of two primary settings in the development of executive functioning. The present study explores the effects of the quality of housing and school environments on the (...) perception of stress, decision making, and planning among children. A total of 114 children (43% girls and 57% boys, Mage = 10.57) from a primary school located in a community classified as poor participated in the study. It was measured: environmental quality of classrooms, housing, stress and executive functioning of children. The results reveal a model linking environmental quality levels in children's homes and schools and executive functioning. We also obtain a mediating role of stress between microsystems and performance, finding a deficit in executive performance when children experienced higher levels of stress as a result of poor environmental quality both in their homes and in their schools. (shrink)

This article focuses on some of the central issues of philosophy of education, such as the problem of acquisition of knowledge, the essence of human potential, the question of the foundation for a viable upbringing, and social dimensions of education. The article discusses one of the key problems of the global world - the problem of man considered in all complexity of the XXI century that presents serious challenges to human sustainability through predictable and unpredictable extreme events of the environmental, (...) social and political nature. (shrink)

In this response paper, I trace the origins of semiosic translation and explain why Jia’s interpretations are theoretically problematic. I also demonstrate that the view of translation endorsed by Jia is untenable from a cognitive perspective, since both perception and action are affordances of the living organisms and hence are not restricted to the “thinking mind” within a Lotmanian semiosphere. Finally, since translation is not a special case of semiosis, I show that semiosic processes, and not individual signs, are the (...) source of all types of translations. (shrink)

The paper argues that the formulation of quantum mechanics proposed by Ghirardi, Rimini and Weber (GRW) is a serious candidate for being a fundamental physical theory and explores its ontological commitments from this perspective. In particular, we propose to conceive of spatial superpositions of non-massless microsystems as dispositions or powers, more precisely propensities, to generate spontaneous localizations. We set out five reasons for this view, namely that (1) it provides for a clear sense in which quantum systems in entangled (...) states possess properties even in the absence of definite values; (2) it vindicates objective, single-case probabilities; (3) it yields a clear transition from quantum to classical properties; (4) it enables to draw a clear distinction between purely mathematical and physical structures, and (5) it grounds the arrow of time in the time-irreversible manifestation of the propensities to localize. (shrink)

The paper argues that the formulation of quantum mechanics proposed by Ghirardi, Rimini and Weber is a serious candidate for being a fundamental physical theory and explores its ontological commitments from this perspective. In particular, we propose to conceive of spatial superpositions of non-massless microsystems as dispositions or powers, more precisely propensities, to generate spontaneous localizations. We set out five reasons for this view, namely that it provides for a clear sense in which quantum systems in entangled states possess (...) properties even in the absence of definite values; it vindicates objective, single-case probabilities; it yields a clear transition from quantum to classical properties; it enables to draw a clear distinction between purely mathematical and physical structures, and it grounds the arrow of time in the time-irreversible manifestation of the propensities to localize. (shrink)

A realistic axiomatic formulation of nonrelativistic quantum mechanics for a single microsystem with spin is presented, from which the most important theorems of the theory can be deduced. In comparison with previous formulations, the formal aspect has been improved by the use of certain mathematical theories, such as the theory of equipped spaces, and group theory. The standard formalism is naturally obtained from the latter, starting from a central primitive concept: the Galilei group.

According to the naturalistic normative axiology of Laudan's reticulated model of scientific change, empirical discoveries in the advance of science can provide a rational basis for axiological decisions concerning which epistemic goals scientific inquiry ought to pursue. The Bohr-Einstein debate over acceptance of quantum theory is analyzed as a case of axiological change. The participants' aims are incompatible due to different formulations of the goal of objective description, but neither doubts the realist commitment to the existence of microsystems or (...) the intention of quantum mechanics to provide knowledge of them. Thus the general aim of realism is not at issue. (shrink)

A solution to the measurement problem of quantum mechanics is proposed within the framework of an intepretation according to which only quantum systems with an infinite number of degrees of freedom have determinate properties, i.e., determinate values for (some) observables of the theory. The important feature of the infinite case is the existence of many inequivalent irreducible Hilbert space representations of the algebra of observables, which leads, in effect, to a restriction on the superposition principle, and hence the possibility of (...) defining (macro-) observables which commute with every observable. Such observables have determinate values which are not subject to quantum interference effects. A measurement process is schematized as an interaction between a microsystem and a macrosystem, idealized as an infinite quantum system, and it is shown that there exists a unitary transformation which transforms the initial pure state of the composite system in a finite time (the duration of the interaction) into the required mixture of disjoint states. (shrink)

General regularities related toLagrangian andHamiltonian equations are revealed. Probability distributions for functions ofHamiltonian random variables are considered. It is shown that all probability distributions of this kind are fully determined by the probability distributions for the random variables satisfying the corresponding Lagrangian equations. Some formulas related tocanonically conjugate operators are given. The similarity of these formulas to those related to Hamiltonian random variables is demonstrated. The “quantum approach” to the treatment of Hamiltonian random variables is discussed, and the origin of (...) some peculiarities related to this approach is elucidated; it is explained, in particular, why it is impossible to form the joint probability density for canonically conjugate random variables when using this approach. The peculiarities revealed prove to be common for any objects possessing Hamiltonian random variables, irrespective of the nature of the objects, and coincide, therefore, with those in quantum mechanics. The existence of joint probability distributions for canonically conjugate random variables in the general case is demonstrated through the calculation of the corresponding joint mathematical expectations in an illustrative example. This proves, in particular, that joint probability distributions for canonically conjugate coordinates and momenta exist indeed in the case of mechanical microsystems. The results obtained prove once again that the pecularities of quantum mechanics are not related to the specificity of the measurements of physical quantities for microsystems. (shrink)

ObjectiveTo apply a socioecological approach to identify risk and protective factors across levels of the “sports-ecosystem,” which are associated with mental health outcomes among athletes in para-sports and non-para sports. A further aim is to determine whether para athletes have unique risks and protective factor profiles compared to non-para athletes.MethodsA cross-sectional, anonymous online-survey was provided to all categorized athletes aged 16 years and older, registered with the Australian Institute of Sport. Mental health outcomes included mental health symptoms, general psychological distress, (...) risky alcohol consumption and eating disorder risk. Risk and protective factors across multiple levels of the socioecological model, including individual, microsystem, exosystem and macrosystem level factors were assessed via self-report.ResultsA total of 427 elite athletes participated in the study. No significant differences in the rates of mental health problems were observed between para and non-para athletes. Both differences and similarities in risk and protective factor profiles were found across the multiple levels of the sports-ecosystem. Weak evidence was also found to support the hypothesis that certain risk factors, including experiencing two or more adverse life events in the past year, sports related concussion, high self-stigma, inadequate social support and low psychological safety conferred a greater risk for poorer mental health outcomes for para athletes in particular.ConclusionRisk factors occurring across various levels of the sports ecosystem, including individual, interpersonal and organizational level risk factors were found to be associated with a range of poorer mental health outcomes. The association between mental ill-health and certain risk factors, particularly those at the individual and microsystem level, appear to be greater for para athletes. These findings have important implications for policy and mental health service provision in elite sports settings, highlighting the need for more nuanced approaches to subpopulations, and the delivery of mental health interventions across all levels of the sports ecosystem. (shrink)

The interpretation of quantum mechanics presented in this paper is inspired by two ideas that are fundamental in Bohr’s writings: indivisibility and complementarity. Further basic assumptions of the proposed interpretation are completeness, universality and conceptual economy. In the interpretation, decoherence plays a fundamental role for the understanding of measurement. A general and precise conception of complementarity is proposed. It is fundamental in this interpretation to make a distinction between ontological reality, constituted by everything that does not depend at all on (...) the collectivity of human beings, nor on their decisions or limitations, nor on their existence, and empirical reality constituted by everything that not being ontological is, however, intersubjective. According to the proposed interpretation, neither the dynamical properties, nor the constitutive properties of microsystems like mass, charge and spin, are ontological. The properties of macroscopic systems and space-time are also considered to belong to empirical reality. The acceptance of the above mentioned conclusion does not imply a total rejection of the notion of ontological reality. In the paper, utilizing the Aristotelian ideas of general cause and potentiality, a relation between ontological reality and empirical reality is proposed. Some glimpses of ontological reality, in the form of what can be said about it, are finally presented. (shrink)

Foreign Language Enjoyment, as the most prevalent positive emotion predicting L2 learners' academic performance and well-being, and a critical factor contributing to the creation of positive micro-institutions, has received remarkable scholarly attention across the globe in the past eight years. Despite the fact that FLE is the most extensively investigated positive emotion and extant research has yielded rich and invaluable findings, it is far from being adequately studied, leaving vast lacunas to be explored. Therefore, this conceptual review article is written (...) to familiarize language education researchers, practitioners, instructors, and learners with the current status of FLE research and its potential applications in L2 education, and suggest potential avenues for future research. To this aim, by making a diachronical and synchronical delineation of extant literature with regard to the conceptualization and theorization of FLE, and the methodology of FLE research, we argue that it is incumbent on researchers to make a new line of enquiry into the actualization of the ascertained affordances of FLE and its transmission in the microsystem of the classroom. Subsequently, by drawing on the broaden-and-build theory and the control-value theory, we highlight the significance of conducting FLE research with theoretical triangulation and methodological diversity to validate the data and minimum bias. Next, while highlighting the critical role of FLE in L2 education, we suggest some pedagogical implications with the hope of enlightening the practice of key stakeholders such as instructors, teacher educators, and teacher recruiters. In the end, the limitations of existing literature are explicated, and avenues for future studies on FLE in L2 education domain are put forward for interested researchers. (shrink)

The purpose of this discussion paper is to explore how nurses can be strategically poised to advocate for needed policy change in support of greater income equality and other social determinants of health. We adapted Bronfenbrenner's social‐ecological model to highlight how four broad pervasive subsystems shape the opportunities that nurses have to engage in advocacy at the policy level. These subsystems include organizations (the microsystem), professional bodies (the mesosystem), public policies (the exosystem), and societal values (the macrosystem). On the basis (...) of this adapted model, we recommend changes among modifiable elements of the microsystem and mesosystem that can help position nurses (ecologically and collectively) to advocate for public policy change and use examples from a Canadian context to illustrate these points. We believe that the ideas arising from this model can be widely used where policy action on the social determinants of health is needed to inform, guide, and frame change efforts and advocacy work. (shrink)

The effects of heredity and the environment on the development of human being, which is a multidimensional being, have been discussed for many years. Studies on the religious development of man were also influenced by these discussions. In this context, in order to better understand the nature of religious development, some theories such as behavioral, cognitive or stage theories have emerged. In a sense, these theories have also identified the direction of religious development. However, many of these theories did not (...) address their religious development as a whole. This restricted the understanding of religious development. Therefore, this article has two main purposes. First, to bring the ecological theory which is the human development model proposed by Bronfenbrenner, which considers human development as a whole with the environment and events in which it lives, to the literature of our country's religion psychology. The second aim is that to contribute to a better understanding of the psychological foundations of religious development through the use of this theory. In this article where qualitative research method has been used, some quantitative study data have been used. In the article, the ecosystem, ecosystem, macrosystem, and the effect of each of the chronosystem on religious development is discussed. In this article, it is concluded that approach to religious development in the context of ecological theory can be useful.Summary: Human being is existentially open to development. The openness of human to development is not a choice but a requirement. Therefore, each individual must experience a developmental process in which physiological, psychological and sociological conditions are intertwined unless he has voluntarily terminated his existence. Psychologists, who are aware of this, attach a special importance to the phenomenon of development. Is heredity is more effective in human development, or the environment? This question is a result of the importance that psychologists attribute to development.Essentially, the roots of these debates on human development are based on the foundation of modern psychology. For example, Locke, one of the most important philosophers of the 18th century, rejected the idea of ​​Descartes, one of the 17th-century thinkers, that man came to the world equipped with all sorts of knowledge and skills. Unlike Descartes, Locke argued that the source of all human knowledge is based on experience. According to Locke, the mind of the newborn baby is an un scraped tablet = tabula rasa, but it is not only the normal knowledge but also the source of God's imagination.This perspective on human development naturally affected the problem of religious development. For example, Jung sought the basis of religious faith in the collective unconscious, referring to the hereditary foundations of religious faith in a sense. On the other hand, Pratt approached the problem of religious development on the basis of experience.In general, religious development studies carried out on more experienced grounds have brought some theoretical approaches. Goldman, for example, examined the course of religious development from childhood to adolescence. For him, religious thought is not that different from non-religious thought in terms of form and method. Fowler, on the other hand, expressed that faith is not always religious in terms of content and context, and has developed a theory of belief development that includes religious development. However, some religious development models brings a different perspective to the development of the religious phenomenon in Turkey have been developed. Three-stage religious development model developed by Karaca is one of them. According to this model, the process of religious development of human beings is completed through three stages: inner tendencies, awakening of religious interest and questioning, harmony and stability.The necessity of using multi-dimensional approaches to understand the human being is a multidimensional entity is undoubtedly a reality. For this reason, it can be stated that the diversity of the explanation models for the religious development phenomenon mentioned above is a richness. It is thought that looking at the phenomenon of religious development in terms of the ecological theory developed by Bronfenbrenner, will increase the wealth of the means to understand the phenomenon of religious development. In this context, the main aim of this article is to provide the literature on the psychology of religion in our country and to contribute to the understanding of the phenomenon of religious development in the context of the theory of ecological theory put forward by Bronfenbrenner in a holistic way.The qualitative research method has been used in this article, besides the explanations and analyzes, the data of the quantitative studies, which are not directly related to the subject, have also been utilized.The basic step of the ecological theory that Bronfenbrenner suggested is a structure in which many systems from family to political and cultural systems overlap to better understand human development. The microsystem, which represents the innermost layer surrounding the individual, expresses the basic structure in which the individual lives and interacts with other people, while the mesosystemincludes the developing individual and the home and the school, school and workplace. It includes connections between two or more microsystems or contexts. The ecosystem, which is an extension of the mesosystem covering both formal and informal structures and relationships, does not directly affect the individual; however, it surrounds the individual by influencing the current arrangements that the individual has been in. The part of the theory that expresses the attitudes and ideologies of the culture in which the individual lives is the macrosystem. The last link of the theory is the chronosystem. The chronosystem, which explains how socio-historical conditions, lifelong transitions and environmental events occur in a pattern, has an important place in the development history of the individual.Although human beings are born with capability for believing, this situation alone is not enough to complete the process of religious development in a healthy way. When considered in the context of ecological theory, the religious development of the individual is affected from the first degree of the microsystem which is in direct contact with his family, school, peer groups, religious groups and playgrounds. In addition, the mesosystem, ecosystem, macrosystem and chronosystem affect the religious development of the individual either directly or indirectly. However, it should be noted that the effects of these systems on religious development are always double polarized.In order to better understand the psychology of religious development in the context of ecological theory, it is thought that the cross-sectional and longitudinal studies that will be done with different groups in which the systems constituting the theory are effective will provide illuminating information about the subject. However, researchers, who will study religious development, are very careful when analyzing the relationships of the variables such as gender, age, civil status, education level, occupational groups and socio-economic level expressing the characteristics of the sample group in the experimental studies and used as independent variables. to be. Since, although the effects of these variables on the level of religiousness, the effects of these variables on dependent variables can be limited without considering the ecological theory. (shrink)

An axiomatic foundation of a quantum theory for microsystems in the presence of external fields is developed. The space-time structure is introduced by considering the invariance of the theory under a kinematic invariance group. The formalism is illustrated by the example of charged particles in electromagnetic potentials. In the example, gauge invariance is discussed.

We prove that the classical theory with a discrete time (chronon) is a particular case of a more general theory in which spinning particles are associated with generalized Lagrangians containing time-derivatives of any order (a theory that has been called “Non-Newtonian Mechanics”). As a consequence, we get, for instance, a classical kinematical derivation of Hamiltonian and spin vector for the mentioned chronon theory (e.g., in Caldirola et al.’s formulation). Namely, we show that the extension of classical mechanics obtained by the (...) introduction of an elementary time-interval does actually entail the arising of an intrinsic angular momentum; so that it may constitute a possible alternative to string theory in order to account for the internal degrees of freedom of the microsystems. (shrink)

A modified Beltrametti-Cassinelli-Lahti model of the measurement apparatus that satisfies both the probability reproducibility condition and the objectification requirement is constructed. Only measurements on microsystems are considered. The cluster separability forms a basis for the first working hypothesis: the current version of quantum mechanics leaves open what happens to systems when they change their separation status. New rules that close this gap can therefore be added without disturbing the logic of quantum mechanics. The second working hypothesis is that registration (...) apparatuses for microsystems must contain detectors and that their readings are signals from detectors. This implies that the separation status of a microsystem changes during both preparation and registration. A new rule that specifies what happens when these changes occur and that guarantees the objectification is formulated and discussed. A part of our result has certain similarities with ‘collapse of the wave function’. (shrink)

The cry that advanced machines will come to dominate human beings resounds from the time of the Luddites up to the current consternation by the chief scientist of Sun Microsystems, Bill Joy. My theme is a twist on this fear: self-deselection, the possibility that humans will voluntarily combine their own bodies with technological additions to the point where it could reasonably be said that our species has been replaced by another kind of entity, a hybrid of human and radical (...) enhancement, whether that enhancement stems from genetic alteration or the affixing of robotic parts. The paper discusses why this danger exists, focusing mainly on perilous psychological and cultural tendencies (though the amazing rate of technological change and its likely course are discussed). It then proceeds with arguments as to why such deselection is a kind of suicide and why this suicide would be a bad thing in the context of early twenty-first- century society. In the last section, ecofeminist theory is employed to generate a therapeutic ethic of social and political relationship that contrasts with a patriarchal model of dominative control through aggressive science. (shrink)

The relevance of the study lies in the fact that in modern conditions globalization acts as the main trend in the development of the modern world; this is noted at the Davos forum in 2019. Development of all spheres of society, the state and the person - from politics, economics - to sports and gender equality. The problem of the research - globalization in sport - is transformation of sport into a global phenomenon, universal in nature, which has significant impact (...) on all aspects of society. Therefore, the scope of dispute and sports culture act as an object of scientific research. Sport stimulates and forms social and cultural reflection on a world scale, reviving the idea of interdependence of humankind in sport and through sport. Unity is formed due to a variety of factors, including a network of communication technologies of financial, political and cultural interdependencies, new cultural forms of interaction that give impetus to sports interactions, forming a single global market for goods, services, behavioral standards, models of sociality, formation of modern values achieving sports success. Problem of globalization in sports is associated with Eurocentric’s, based on formation of European values of sports, sports culture and sports success, and in general sports management. The object of the research is sports management as a condition for the development of sports culture in the context of globalization 4.0. The objectives of the research are to analyze new trends in the global mankind development that influence sports development and culture, contribute to self-fulfillment of a person from the physical and spiritual side as a priority of creative person. Methods - analysis and synthesis, abstraction, cross-cultural analysis, logical and historical, comparative analysis contribute the penetration into complex phenomena and processes of modern reality associated with sports in context of globalization. Results. Globalization is changing usual way people in sports, along with many advantages, has number of negative, painful problems associated with overt commercialization. Globalization has entered single microsystem structure as a process of integration and economic exchange; global artifacts are present in sports management, to extent that sport is institutionalized on the scale of global sports communities. The form of sports globalization refers to specific way that structuring problems of sports take place and their transfer to the globalization level of problem solving, that is, global and local integration takes place. Conclusion. Globalization means increase in available methods of organizing sport events, which requires formation of sports concept management - transnational, international, interregional, macro-rational, regional municipal, local organizations require improvement of sports management. This ladder of administrative levels is cut through the functional networks of corporations, international organizations and non-governmental organizations, as well as number of professional international organizations. Internationalization of sports is being determined by globalization. (shrink)

An intriguing development in the realm of commercial software has arisen over the last decade, from highly improbable beginnings. From its inception in the ‘hacker ethic’, freeware has had a huge impact on IT businesses around the world, most strongly in the guise of its spin‐off, open source software. The eventual consequences are that, for example, more than 60% of all the servers on the World Wide Web are running the Apache open source system, and Linux, the open source cousin (...) of Unix, is challenging Microsoft’s products as the most popular business server operating system. Major IT users such as multinational banks, and major IT companies including IBM, Hewlett Packard, Sun Microsystems, Dell, Oracle, Informix, Intel, Fujitsu, AMD and Computer Associates are investing in and supporting Linux. In 1998, Netscape Communications made public the source code for its Netscape web browser. In 1999 Apple published the source for the ‘Darwin’ core of its Mac OS X. The Perl freeware programming language continues to gain popularity for web‐based applications. (shrink)

Neural organization attempts to thwart, at least in part, modern neuroscientists' tendency to focus reductionistically on ever smaller microsystems. But although emphasizing higher levels of systems organization, the authors end up enforcing reductionisms of their own, principally the reduction of their domain to the study of invariable normal functioning, without explicit modeling of the deviations that constitute disease states or aging. This reductionism seriously weakens the authors' claims about the truth of their quantitative models.

The cry that advanced machines will come to dominate human beings resounds from the time of the Luddites up to the current consternation by the chief scientist of Sun Microsystems, Bill Joy. My theme is a twist on this fear: self-deselection, the possibility that humans will voluntarily combine their own bodies with technological additions to the point where it could reasonably be said that our species has been replaced by another kind of entity, a hybrid of human and radical (...) enhancement, whether that enhancement stems from genetic alteration or the affixing of robotic parts. The paper discusses why this danger exists, focusing mainly on perilous psychological and cultural tendencies (though the amazing rate of technological change and its likely course are discussed). It then proceeds with arguments as to why such deselection is a kind of suicide and why this suicide would be a bad thing in the context of early twenty-firstcentury society. In the last section, ecofeminist theory is employed to generate a therapeutic ethic of social and political relationship that contrasts with a patriarchal model of dominative control through aggressive science. (shrink)

A quantum mechanical model of a counter monitoring the decay of an unstable microsystem is constructed. Detailed investigation of the time evolution of this model shows that the counter behaves essentially classically; i.e., its discharges may be considered as objective, observer-independent events. The possible relevance of this result for the physical interpretation of quantum mechanics is discussed.

Using the example of a harmonic oscillator and nondispersive wave packets, we derive, in the frame of the causal interpretation, the equations of motion and particle trajectories in one- and two-particle systems. The role of the symmetry or antisymmetry of the wave function is analyzed as it manifests itself in the specific types of corelated trajectories. This simple example shows that the concepts of the quantum potential and the quantum forces prove to be essential for the specification of the dynamics (...) of a microsystem and the resulting statistical behavior. (shrink)

Sociocultural influences on the development of child language skills have been widely studied, but the majority of the research findings were generated in Northern contexts. The current crosslinguistic, multisite study is the first of its kind in South Africa, considering the influence of a range of individual and sociocultural factors on expressive vocabulary size of young children. Caregivers of toddlers aged 16 to 32 months acquiring Afrikaans, isiXhosa, South African English, or Xitsonga as home language completed a family background questionnaire (...) and the MacArthur-Bates Communicative Development Inventory about their children. Based on a revised version of Bronfenbrenner’s ecological systems theory, information was obtained from the family background questionnaire on individual factors, microsystem-related factors, and exosystem-related factors. All sociocultural and individual factors combined explained 25% of the variance in expressive vocabulary size. Partial correlations between these sociocultural factors and the toddlers’ expressive vocabulary scores on 10 semantic domains yielded important insights into the impact of geographic area on the nature and size of children’s expressive vocabulary. Unlike in previous studies, maternal level of education and SES did not play a significant role in predicting children’s expressive vocabulary scores. These results indicate that there exists an interplay of sociocultural and individual influences on vocabulary development that requires a more complex ecological model of language development to understand the interaction between various sociocultural factors in diverse contexts. (shrink)

The very formal structure of quantum mechanics implies the loss of individuality of physical systems and it requires to look at the Universe as an unbroken whole. The main reason for which, within such a theory, one must renounce to a clear identification of the parts and the whole is the superposition principle which stays at the basis of the theory. It implies, as well known, the phenomenon of entanglement which, in the most extreme case, entails that the constituents of (...) a composite system do not possess any objective property; only the system as a whole, when it is isolated, has some properties. Another source of difficulties derives from the symmetry requests that the theory imposes in the case of systems containing identical constituents. We discuss these points in detail and we outline recent proposals yielding a consistent solution to the problems arising from the entanglement between a microsystem and a macrosystem which unavoidably occurs in a measurement process. In particular we take into account the so called “collapse” theories which embody a mechanism forbidding, at an appropriate level, the persistence of superpositions and, as a consequence, lead, in general, to the emergence of precise individual properties for macroscopic systems. We then pass to a critical analysis of the difficulties related to the identity of the constituents. We stress that various misunderstandings characterize the treatment of this problem and we make fully clear how one has to deal with the very concept of entangled systems when identical constituents are involved. The ensuing picture should make clear to which extent one can still consistently ground the distinction between the parts and the whole in a genuinely quantum context. (shrink)

Higher education, a key driver of women’s empowerment, is still segregated by gender across the world. Agricultural higher education is a field that is male-dominated, even though internationally women play a large role in agricultural production. The purpose of this study was to understand the experience, including challenges and coping strategies, of women from 10 Latin American countries attending an agricultural university in Latin America. The participants were 28 women students with a mean age of 20.9 ± 1.8 years. Following (...) informed consent and assurance of confidentiality, four focus group sessions (one for each year of study with a mean duration of 81 min) were conducted in Spanish. The central question was, “what has been your experience at the university?” Sessions were recorded and transcribed. Thematic coding was performed independently by two teams of researchers (from Latin America and North America), with the resulting schemas combined through mutual discussion. Member checking, auditing, and reflexivity contributed to trustworthiness of the process. Students reported that the personal qualities needed for success included determination, persistence, and self-efficacy. Many described an empowerment process, including increased discipline and self-efficacy from the first to fourth year of study. University life encompassed six themes: university structure and discipline (part of the exosystem), two supportive microsystems (friends and classmates and institutional support) as well as three challenges (academics, peers, and machismo). Cultural influences instantiated in students’ daily experiences included familism, machismo, and religious faith. Students anticipated futures involving further education and contributions to society. We conclude that higher education in agriculture can serve as an effective means of empowering women to feed the world. (shrink)

The only observational quantity which quantum mechanics needs to address islocation. The typical primitive observation on a microsystem (e.g., photon) isdetection at alocation (e.g., by a photomultiplier “looking at” a grating). To analyze an experiment, (a) form a conceptual ensemble of replicas of it, (b) assign a wave function (in “position representation”) to its initial condition, (c) evolve the wave function by the Schrödinger equation (known, once and for all, as a function of the system's composition), (d) compute the probability (...) for particle detection at various times and places. The initial wave function is chosen on the basis of experience with such treatments. Key experiments are thus treated: (i) time-of-flight, (ii) Stern-Gerlach, (iii) Franck-Hertz, (iv) photon recoil, (v) photoionization. Quantum states, dynamical variables, and measurements, and the usual postulates about them, are superfluous. The explicit treatments are nonrelativistic; the existence of relativistic generalizations is left open. (shrink)

We investigate the problem of “wave packet reduction” in quantum mechanics by solving the Schrödinger equation for a system composed of a model measuring apparatusM interacting with a microscopic objects. The “instrument” is intended to be somewhat more realistic than others previously proposed, but at the same time still simple enough to lead to an explicit solution for the time-dependent density matrix. It turns out that,practically, everything happens as if the wave packet reduction had occurred. This is a consequence of (...) the fact that the apparatus is made up of a very large number of microsystems interacting withs. More precisely, our model shows that the “macroscopic size” of a measuring apparatus can lead by itself to a density matrix for the systemM + s which is physically equivalent to the density matrix of a statistical mixture corresponding to the reduced wave packet. (shrink)

In previous works we have established that the spacetime probabilistic organization of the quantum theory is determined by the spacetime characteristics of the operations by which the observer produces the objects to be studied (“states” of microsystems) and obtains qualifications of these. Guided by this first conclusion, we have then built a “general syntax of relativized conceptualization” where any description is explicitly and systematically referred to the two basic epistemic operations by which the conceptor introduces the object to be (...) qualified and then obtains qualifications of it. Inside this syntax there emerges a general typology of the relativized descriptions. Here we show that with respect to this typology the type of the predictive quantum mechanical descriptions acquires a precise definition. It appears that the quantum mechanical formalism has captured and has expressed directly in a mathematical language the most complex form in which can occur a first descriptional phase that lies universally at the bottom of any chain of conceptualization. The main features of the Hilbert-Dirac algorithms are decoded in terms of the general syntax of relativized conceptualization. This renders explicit the semantical contents of the quantum mechanical representations relating each one of these to its mathematical quantum mechanical expression. Basic insufficiencies are thus identified and, correlatively, false problems as well as answers to these, or guides toward answers. Globally the results obtained provide a basis for future attempts at a general mathematical representation of the processes of conceptualization. “Il pourrait, en effet, être dangereux pour l'avenir de la Physique qu'elle se contente trop facilement de purs formalismes, d'images floues et d'explications toutes verbales s'exprimant par des mots à signification imprécise”—Louis de Broglie,Certitudes et Incertitudes de la Science (Albin Michel, Paris, 1965). (shrink)

Bell's theorem is believed to establish that the quantum mechanical predictions do not generally admit a causal representation compatible with Einsten's principle of separability, thereby proving incompatibility between quantum mechanics and relativity. This interpretation is contested via two convergent approaches which lead to a sharp distinction between quantum nonseparability and violation of Einstein's theory of relativity.In a first approach we explicate from the quantum mechanical formalism a concept of “reflected dependence.” Founded on this concept, we produce a causal representation of (...) the quantum mechanical probability measure involved in Bell's proof, which is clearly separable in Einstein's sense, i.e., it does not involve supraluminal velocities, and nevertheless is “nonlocal” in Bell's sense. So Bell locality and Einstein separability aredistinct qualifications, and Bell nonlocality (or Bell nonseparability) and Einstein separability arenot incompatible. It is then proved explicitly that with respect to the mentioned representation Bell's derivation does not hold. So Bell's derivation does notestablish thatany Einstein-separable representation is incompatible with quantum mechanics. This first—negative—conclusion is asyntactic fact.The characteristics of the representation and of the reasoning involved in the mentioned counterexample to the usual interpretation of Bell's theorem suggest that the representation used—notwithstanding its ability to bring forth the specified syntactic fact—isnot factually true. Factual truth and syntactic properties also have to be radically distinguished in their turn. So, in a second approach, starting from de Broglie's initial relativistic model of a microsystem, a deeper, factually acceptable representation is constructed. The analyses leading to this second representation show that quantum mechanics does indeed involve basically a certain sort of nonseparability, called here de Broglie-Bohr quantum nonseparability. But the de Broglie-Bohr quantum nonseparability is shown to stem directly from the relativistic character of the considerations which led Louis de Broglie to the fundamental relation p = h/λ,thereby being essentially consistent with relativity. As to Einstein separability, it appears to be a still insufficiently specified conceptof which a future, improved specification, will probably be explicitly harmonizable with the de Broglie-Bohr quantum nonseparability.The ensemble of the conclusions obtained here brings forth a new concept of causality, a concept offolded, zigzag, reflexive causality, with respect to which the type of causality conceived of up to now appears as aparticular case of outstretched, one-way causality. The reflexive causality is found compatible with the results of Aspect's experiment, and it suggests new experiments.Considered globally, the conclusions obtained in the present work might convert the conceptual situation created by Bell's proof into a process of unification of quantum mechanics and relativity. (shrink)

Consideration is given to recent attempts to solve the objectification problem of quantum mechanics by considering nonlinear and stochastic modifications of Schrödinger's evolution equation. Such theories agree with all predictions of standard quantum mechanics concerning microsystems but forbid the occurrence of superpositions of macroscopically different states. It is shown that the appropriate interpretation for such theories is obtained by replacing the probability densities of standard quantum mechanics with mass densities in real space. Criteria allowing a precise characterization of the (...) idea of similarity and difference of macroscopic situations are presented and it is shown how they lead to a theoretical picture which is fully compatible with a macrorealistic position about natural phenomena. (shrink)