On the Possible Anomaly of Asymmetric Weight Reduction of Gyroscopes under Rotation

In this work, we discuss a theoretical model that can describe novel phenomena of induction of weak anomalous forces in gyroscopes under right rotations either in rest frame of the laboratory or in free-fall. The effect detected in the gyroscopes cannot be successfully associated to any conventional theory. So, we elaborated the theoretical description of such forces in both experiments by means of a model based on the generalized quantum entanglement framework, by considering as quantum witnesses the magnetic permeability and as macroscopic observable the angular momentum of the gyroscopes rotors. Our calculations indicate that there is a good agreement with the experimental data obtained from literature for most rotation frequencies measured

The Electromagnetic Form Factor of the Kaon in the Light-Front Approach

The kaon electromagnetic form factor is calculated within a light-front constituent quark model (LFCQM). The electromagnetic components of the current are extracted from the Feynman triangle diagram within the light-front approach. We also obtain the electroweak decay constant and the charge radius for the kaon in the light-front approach. In this work, the kaon observables are calculated and a fairly good agreement is obtained with a very higher accuracy when compared with the experimental data.Comment: Paper with 4 pages, 1 figure, reference: XII HADRON PHYSICS Conference - to appear in AIP Conference Proceeding

ASPEK HUKUM PERAN KEBUN RAYA BOGOR DALAM USAHA KONSERVASI TANAMAN YANG DILINDUNGI DI KOTA BOGOR

Protected plant conservation is a crucial effort to preserve and maintain the diversity of plant species on earth. Many plant species are currently endangered or threatened due to various human activities, including deforestation, land use change, and illegal harvesting. The conservation of protected plants involves both in situ and ex situ conservation methods. In situ conservation methods include the protection of plant habitats and the restoration of degraded ecosystems, while ex situ conservation, such as Kebun Raya Botanical Garden, involves the maintenance of plant genetic resources in gene banks and botanical gardens. Effective conservation strategies require collaboration among governments, NGOs, local communities, and stakeholders to ensure the sustainable use and management of protected plant species. The success of protected plant conservation efforts will not only benefit the survival of plant species but also contribute to the overall health and well-being of our planet

Electromagnetic Structure of the Pion

In this work, we analyze the electromagnetic structure of the pion. We calculate its electromagnetic radius and electromagnetic form factor in low and intermediate momentum range. Such observables are determined by means of a theoretical model that takes into account the constituent quark and antiquark of the pion within the formalism of light-front field theory. In particular, we consider a nonsymmetrical vertex in this model, with which we calculate the electromagnetic form factor of the pion in an optimized way, so that we obtain a value closer to the experimental charge radius of the pion. The theoretical calculations are also compared with the most recent experimental data involving the pion electromagnetic form factor and the results show very good agreement.Comment: Paper with 4 pages, 1 figure, presented in XII HADRON PHYSICS Conference - to appear in AIP Conference Proceeding

Sectoral system of innovation : foundations and critical elements for a new mesoeconomics

Orientador: Maria Beatriz Machado BonacelliDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de GeociênciasResumo: A dissertação analisa criticamente o arcabouço conceitual do Sistema Setorial de Inovação (SSI). A literatura de economia industrial já utiliza a indústria como instrumento analítico para o estudo das transformações mesoeconômicas há tempos. Por que lançar outra perspectiva no mesmo nível? Investiga-se se o SSI é um instrumento analítico mesoeconômico dinâmico. Em outros termos, a dissertação pretende responder se, ao lançar mão do SSI, um pesquisador dedicado às transformações no nível mesoeconômico terá feito a escolha certa. O objetivo da pesquisa é comparar os padrões de utilização do SSI na literatura de estudos da inovação com os propósitos implícitos e explícitos deste arcabouço conceitual. As justificativas para o estudo são a importância da compreensão da dinâmica mesoeconômica para a proposição de políticas de tecnologia e inovação, a dificuldade metodológica e conceitual de se compatibilizar uma perspectiva gradualista e uma perspectiva descontínua do progresso técnico e a ausência de referências metodológicas que sirvam como guia para estudos setoriais. Categoriza-se a produção científica de Franco Malerba ¿ responsável pela formalização do SSI ¿ dos anos de 1983 a 2017 e apuram-se evidências bibliométricas com respeito à utilização do SSI. As três fases identificadas (historiador industrial, pattern-modeler e sistêmico) conjugadas aos resultados bibliométricos explicitam (i) a dificuldade de se analisar a dinâmica meso sem recorrer a outros níveis de análise (micro ou macro); (ii) a explicação parcial da co-evolução da base técnica e institucional devido a integração parcial das instituições no esquema mesodinâmico; (iii) a pouca atenção dada as redes e (iv) a dificuldade de se elaborar políticas de inovação a partir do SSI (embora o SSI tenha sido usado como base para políticas tecnológicas). Não obstante, as contribuições do SSI também emergem, como a consolidação de metodologias setoriais (histórico-analítica e history-friendly models), dividendos teóricos para os campos de sistemas de inovação, economia evolucionária e economia industrial e, finalmente, uma profícua agenda de pesquisa que vem lançando as bases para uma nova mesoeconomiaAbstract: This dissertation critically analyzes the conceptual framework of the Sectoral System of Innovation (SSI) approach. Industrial economics literature has already used industry as an analytical tool for the study of mesoeconomic transformations for some time. Why develop another perspective on the same level? We investigate if the SSI could be considered as a dynamic mesoeconomic analytical tool. In other words, this dissertation intends to answer if, by using the SSI, a researcher dedicated to the study of the transformations at the mesoeconomic level would have made the right choice. The objective of this research is to compare the patterns in the use of the SSI approach by the literature on innovation studies with the implicit and explicit purpose of its conceptual framework. This dissertation find its justification in at least three elements: First, the importance of the understanding of the mesoeconomic dynamics for the proposal of technology and innovation policies. Second, the methodological and conceptual difficulties for reconciling gradualist and discontinuous perspectives on technical change. Third, the absence of methodological references that would serve as guide for sectoral studies. We categorize the scientific production of Franco Malerba ¿ responsible for the formalization of the SSI ¿ from the years 1983 to 2017 and provide bibliometric evidence regarding the use of the SSI. As a result, the three phases were identified (industrial historian, pattern-modeler and systemic), which combined with bibliometric findings explain: (i) the difficulty for analyzing the meso dynamics without resorting to other levels (micro or macro); (ii) the partial explanation of the co-evolution of the technical and institutional bases, mainly due to the partial integration of the institutions in the meso-dynamic scheme; (iii) the lack of attention that has been given to networks and (iv) the difficulty to develop innovation policies based on SSI analysis (although the SSI has been used as a basis for technological policies). Nonetheless, SSI contributions also emerge, being some of them the consolidation of sectoral methodologies (historical-analytical and history-friendly models); theoretical dividends for innovation systems, evolutionary economics, and industrial economics studies; and finally a fruitful agenda of research that is laying the foundations for a new mesoeconomicsMestradoPolitica Cientifica e TecnologicaMestre em Política Científica e Tecnológica132313/2016-2CNP

Pion and kaon elastic form factors in a refined light-front model

Within the framework of light-front field theory, we reassess the electromagnetic form factors of the pion and kaon. Comparison with experiment is made for the full range of momentum transfer, q^2<0, including recent data. The light-front model's single regulator mass, m_R, of the \bar qq bound-state vertex function is initially adjusted to reproduce the weak decay constants, f_\pi\ and f_K, and both meson's charge radii, r_\pi\ and r_K. We study the behavior of these observables under variation of the quark masses and find an optimized parameter set, m_u=m_d, m_s and m_R, for which they are in sensibly better agreement with experiment than in a previous analysis; a feature also observed for the elastic form factors, in particular at small q^2. This model refinement is important in view of an extension to vector and heavy-light mesons.Comment: 5 pages, 8 figures; minor corrections, version published in PRC C86, 038202 (2012