166 research outputs found
On Quantum Things. A Constructive Guide to the Fundamentals of Quantum Theory
No full textA realist, particle-based view of quantum theory-where the wavefunction no longer plays a central role-offers a clear, commonsense alternative to dominant metaphysical views.
This book explores the metaphysics of quantum theory through a lens of scientific realism-the belief that successful scientific theories describe reality. It critically evaluates various interpretations, including structural realism, wave function realism, and the many-worlds view, highlighting their limitations. Valia Allori proposes a “spatiotemporal foundational ontology” approach, grounded in particles as fundamental entities evolving in three-dimensional space and time, following uniform, symmetric laws. This view is exemplified by Bohmian mechanics (pilot-wave theory), offering a constructive, commonsensical explanation of quantum phenomena. The wave function, in this framework, is not a physical object but plays a functional, law-like role in explaining interactions. Further, the book advances a radical thesis: fundamental particles lack intrinsic properties like mass or charge and are instead “bare” objects distinguished only by the laws governing them. This thesis allows a middle path between traditional object-based metaphysics and eliminative structuralism. Ultimately, the author argues that had physics developed more rationally, instead of following a historical path shaped by contingent choices, the pilot-wave theory might have been the dominant interpretation, minimizing the proliferation of speculative alternatives
Fundamental Physical Theories: Mathematical Structures Grounded on a Primitive Ontology
No full textIn my dissertation I analyze the structure of fundamental physical theories. I start with an analysis of what an adequate primitive ontology is, discussing the measurement problem in quantum mechanics and theirs solutions. It is commonly said that these theories have little in common. I argue instead that the moral of the measurement problem is that the wave function cannot represent physical objects and a common structure between these solutions can be recognized: each of them is about a clear three-dimensional primitive ontology that evolves according to a law determined by the wave function. The primitive ontology is what matter is made of while the wave function tells the matter how to move. One might think that what is important in the notion of primitive ontology is their three-dimensionality. If so, in a theory like classical electrodynamics electromagnetic fields would be part of the primitive ontology. I argue that, reflecting on what the purpose of a fundamental physical theory is, namely to explain the behavior of objects in three–dimensional space, one can recognize that a fundamental physical theory has a particular architecture. If so, electromagnetic fields play a different role in the theory than the particles and therefore should be considered
Regiões Ultraperiféricas (Açores e Madeira): Mais-valia de Portugal na Europa
Get PDFIn this paper the author unveils the outermost regions (Madeira e Açores) as added value of Portugal in Europe.http://dx.doi.org/10.14195/1647-6336_12_6Nesta comunicação o autor dá a conhecer as Regiões Ultraperiféricas (Madeira e Açores) como uma mais-valia de Portugal na Europa.http://dx.doi.org/10.14195/1647-6336_12_
Obstetrics Practices in Women’s Consulting – Perspectives of Professional Development for Midwifery Profession /// Акушерските практики за консултиране на жени – перспектива за развитието на професията „Акушерка“
No full textThis thesis is the first systematic, comprehensive and in-depth scientific study of the preparedness, attitudes and motivation of midwives to perform autonomous functions in women’s reproductive health care consultancy. It focuses on the possibilities for creating autonomous obstetric practices as potential for professional development of the midwifery profession. Criteria for control and evaluation of the autonomous obstetric practice have been developed.Дисертационният труд представлява първото системно, комплексно и задълбочено научно изследване на готовността, нагласите и мотивацията на акушерките за осъществяване на автономни функции при консултирането на жени във връзка с репродуктивното им здраве и възможностите за създаване на автономни акушерски практики като перспектива за развитието на професията „Акушерка“. Разработени са критерии за контрол и оценка на дейността на автономната акушерска практика
Analisis Citraan Dalam Novel Monokrom Karya Nurman Hasim Usman
Get PDFABSTRAK Silvia Valia Franciska.2021. thesis. “Image Analysis in the Monokrom Novel by Nurman Hasim Usman�. language as a picture of the mind to express the author's ideas in making a literary work. Language in the form of a picture of the author's imagination in the novel is interesting to study stylistically. Stylistics group imagery into five types, namely visual images, auditory images, motion images, tactile images and olfactory images. This Monokrom novel by Nurman Hasim Usman contains images. This novel tells about the friendship of several high school teenagers in a remote part of the country in achieving their dreams and love at the end of high school. The purpose of this research is to find out, describe, analyze, and interpret imagery data in the Monokrom novel by Nurman Hasim Usman. This research uses a qualitative approach. Using descriptive research methods. The data collection technique used by the author is hermeneutic technique. Data Analysis Techniques Based on content analysis. The data validity technique used triangulation technique. The results of the imagery research in the novel Monkrom by Nurman Hasim Usman the data that dominates is data from motion imagery. The motion imagery contained in the Monokrom novel can be used to describe the characters, and give an idea of how a character in the novel is doing movement
Ideologia e mais-valia ideológica: Karl Marx e Ludovico Silva em diálogo
Get PDFThe present article seeks to revisit a fundamental concept for the analysis of the ideas in the capitalist system: ideology. To do so, this concept is revisited in a classic author on this subject: Karl Marx. Based on the investigation of excerpts of his book “German Ideology”, the article aims to recover what the German thinker understands by ideology. After, an analysis of the book “The ideological surplus value” written by the Venezuelan philosopher Ludovico Silva. Silva takes up the concept of ideology as it appears in Marx and then tries to expand it, discovering a new category: ideological surplus value. In the end, the converging elements between Marx and Silva are highlighted and the possibilities and limits of the ideological surplus value category are pointed out.El presente artículo pretende revisitar un concepto fundamental para el análisis de las ideas en el sistema capitalista: la ideología. Para ello, el concepto es revisitado en un autor clássica de la temática: Karl Marx. Mediante la investigación de pasajes de su libro “Ideología Alemana”, se pretende recuperar lo que el pensador alemán entendía por ideología. Después se analiza el libro “La plusvalía ideológica” del filósofo venezolano Ludovico Silva. Silva retoma el concepto de ideología tal como él aparece en Marx y después procura ampliarlo, descubriendo una nueva categoría: la plusvalía ideológica. Al fin, se señalan los elementos convergentes entre Marx y Silva y cuáles son las posibilidades y límites de la categoría plusvalía ideológica. O presente artigo procura retomar um conceito fundamental para a análise das ideias dentro do sistema capitalista: a ideologia. Para tanto, o conceito é revisitado em um autor clássico sobre o tema: Karl Marx. A partir da investigação de trechos de seu livro “Ideologia Alemã”, pretende-se recuperar o que o pensador alemão compreende por ideologia. Em seguida, é feita a análise do livro “A mais-valia ideológica” do filósofo venezuelano Ludovico Silva. Silva retoma o conceito de ideologia tal como ele aparece em Marx e depois procura expandi-lo, descobrindo uma nova categoria: a mais-valia ideológica. Por fim, são apontados os elementos convergentes entre Marx e Silva e quais são as possibilidades e limites da categoria mais-valia ideológica. 
Isogeometric solution of helmholtz equation with dirichlet boundary condition in regions with irregular boundary: Numerical experiences
No full textIn this paper we use the Isogeometric Analysis (IgA) to solve the Helmholtz equation with Dirichlet boundary condition over a bounded physical 2D domain. Starting from the variational formulation of the problem, we show how to apply IgA to obtain an approximated solution based on biquadratic B-spline functions. We focus the attention on problems where the physical domain has very irregular boundary. To solve these problems successfully a high quality parametrization of the domain must be constructed. This parametrization is also a biquadratic tensor product B-spline function, with control points computed as the vertices of a quadrilateral mesh with optimal geometric properties. We study experimentally the influence of the wave number and the parametrization of the physical domain in the accuracy of the approximated solution. A comparison with classical Finite Element Method is also included. The power of IgA is shown solving several difficult model problems, which are particular cases of the Helmholtz equation and where the solution has discontinuous gradient in some points, or it is highly oscillatory. For all model problems we explain how to select the knots of B-spline quadratic functions and how to insert knew knots in order to obtain good approximations. The results obtained with our imple-mentation of the method prove that IgA approach is successful, even on regions with irregular boundary, since it is able to offer smooth solutions having at the same time some singular points and high number of oscillations.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Mathematical Physic
Evaluation - a reflection of knowledge or a set of coincidences
Get PDFAIM: To investigate the effectiveness of the process of evaluating the knowledge and skills acquired through the eyes of students enrolled in the Midwife program.MATERIALS AND METHODS: A survey was conducted among students in the Medical University of Varna, enrolled in the Midwife program, from 1st to 4th year (98 individuals). The survey is detailed and it was conducted in July, 2016. The methods used were documentary, statistical, survey, and graphical analysis.RESULTS AND DISCUSSION: Students accept the evaluation with reservations and as a reflection of the gained throughout the studies knowledge and skills, while considering that the evaluation itself cannot be motivating for making more effort when acquiring more knowledge. They appreciate the need for systemic absorption of knowledge and application of current control in training in the Midwife program. According to them, the process of examination and evaluation does not completely eliminate the influence of random factors. It is mandatory to apply various forms, methods and tests, which can clarify the process in relation to the specifics in the practical tuition and the real life environment specifics. Students perceive the silence while someone else is cheating on an exam as an appropriate behavior.CONCLUSIONS: The exam tests both the acquired knowledge and skills, and the individual qualities and character, which affect the way they present the tested/examined knowledge
Nonconvulsive epileptic seizure monitoring with incremental learning
Get PDFNonconvulsive epileptic seizures (NCSz) and nonconvulsive status epilepticus (NCSE) are two neurological entities associated with increment in morbidity and mortality in critically ill patients. In a previous work, we introduced a method which accurately detected NCSz in EEG data (referred here as ‘Batch method’). However, this approach was less effective when the EEG features identified at the beginning of the recording changed over time. Such pattern drift is an issue that causes failures of automated seizure detection methods. This paper presents a support vector machine (SVM)-based incremental learning method for NCSz detection that for the first time addresses the seizure evolution in EEG records from patients with epileptic disorders and from ICU having NCSz. To implement the incremental learning SVM, three methodologies are tested. These approaches differ in the way they reduce the set of potentially available support vectors that are used to build the decision function of the classifier. To evaluate the suitability of the three incremental learning approaches proposed here for NCSz detection, first, a comparative study between the three methods is performed. Secondly, the incremental learning approach with the best performance is compared with the Batch method and three other batch methods from the literature. From this comparison, the incremental learning method based on maximum relevance minimum redundancy (MRMR_IL) obtained the best results. MRMR_IL method proved to be an effective tool for NCSz detection in a real-time setting, achieving sensitivity and accuracy values above 99%
- …
