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Search Results: 1 - 10 of 461365 matches for " A. Porcelli "
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Large-Scale Structure Formation via Quantum Fluctuations and Gravitational Instability  [PDF]
Fernando Porcelli, Giancarlo Scibona
International Journal of Geosciences (IJG) , 2014, DOI: 10.4236/ijg.2014.56058
Abstract:

This is a review of the status of the universe as described by the standard cosmological model combined with the inflationary paradigm. Their key features and predictions, consistent with the WMAP (Wilkinson Microwave Anisotropies Probe) and Planck Probe 2013 results, provide a significant mechanism to generate the primordial gravitational waves and the density perturbations which grow over time, and later become the large-scale structure of the universe—from the quantum fluctuations in the early era to the structure observed 13.7 billion later, our epoch. In the single field slow-roll paradigm, the primordial quantum fluctuations in the inflaton field itself translate into the curvature and density perturbations which grow over time via gravitational instability. High density regions continuously attract more matter from the surrounding space, the high density regions become more and more dense in time while depleting the low density regions. At late times the highest density regions peaks collapse into the large structure of the universe, whose gravitational instability effects are observed in the clustering features of galaxies in the sky. Thus, the origin of all structure in the universe probably comes from an early era where the universe was filled with a scalar field and nothing else.

La Glottodidattica come scienza interdisciplinare
Gianfranco Porcelli
Synergies France , 2005,
Abstract:
Parlamento e política externa na Argentina: algumas reflex es sobre a "Lei do A úcar"
Emanuel Porcelli
Meritum : Revista de Direito da Universidade FUMEC , 2012,
Abstract: A chamada "Lei do A úcar", Lei n. 24.822, sancionada em setembro de 1997, apresenta-se como um caso que foge aos parametros tradicionais da forma o da política externa da Argentina, na qual há atua o ativa do Poder Legislativo daquele país. Por meio deste trabalho, busca-se reconstruir o processo até a promulga o dessa lei – o qual tem sido, até o presente momento, negligenciado pela literatura – para tentar entender seu impacto na rela o da Argentina com o Brasil e o Mercosul, bem como para esbo ar algumas reflex es em torno do papel do Parlamento na atualidade dessas temáticas.
Parlamento y política exterior: algunas reflexiones en torno a la "Ley del Azúcar"
Emanuel Porcelli
Meritum : Revista de Direito da Universidade FUMEC , 2012,
Abstract: La llamada Ley del Azúcar, Ley nro. 24.822, sancionada en septiembre de 1997, se presenta como un caso que sale de los parámetros tradicionales de la formación de Política Exterior Argentina, ya que participa activamente el Poder Legislativo de nuestro país. Mediante este trabajo buscaremos poder reconstruir este proceso, algo olvidado en la bibliografía de la disciplina, para poder comprender su incidencia en la vinculación con Brasil y el Mercosur, como así también, poder esbozar algunas reflexiones entorno al papel del Parlamento en la actualidad en estas temáticas.
Theoretical Study of Anomalous Forces Externally Induced by Superconductors  [PDF]
Elio B. Porcelli, Victo S. Filho
Natural Science (NS) , 2017, DOI: 10.4236/ns.2017.99028
Abstract: In this work we present a theoretical explanation for the possible anomalous forces induced by superconducting disks and toroids, based on the hypothesis of a preexisting state of generalized quantum entanglement that can produce momentum variation exchanged between Cooper pairs and outer particles. Considering the immense amount of particles involved in the phenomenon as coherent Cooper pairs, and indications of previous studies, we use classical quantities as macroscopic observables in our calculations. We here analyzed the behavior of such superconductors and compared the experimental results early obtained in the literature with our theoretical proposal. We found that the theoretical calculations agreed with very good accuracy for two different experiments and devices. The present work really highlights the possibility of superconducting materials to be applied to induce outer forces in the environment and in external objects, as explained by our theoretical model.
Analysis of Possible Nonlocal Forces in Superconducting Materials  [PDF]
Elio B. Porcelli, Victo S. Filho
Journal of Power and Energy Engineering (JPEE) , 2018, DOI: 10.4236/jpee.2018.61007
Abstract: In this work, we show that anomalous forces in rotating superconductor rings seem to be nonlocal in its nature, according to same theoretical framework in our previous analysis concerning to superconducting disks and toroids. Here we discuss an experiment involving rotating and angularly accelerated superconducting rings and show that the concept of generalized quantum entanglement can explain the anomaly accordingly. In fact, the hypothesis of momentum variation exchanged between Cooper pairs and outer particles regarding a hypothesis of preexisting state of generalized quantum entanglement which is also valid in this system because classical macroscopic quantities are performed in the calculation and indicate good agreement between experimental and theoretical results. We also analyze the possible reason for the discrepance between positive and null results in case of some high voltage discharge experiments involving superconducting discs in terms of nonlocal force induction aiming to reinforce that the anomalous effect can really exist in all of those superconducting systems. The experiments indicate that the anomalous forces are still weak, but our study can provide some possible physical conditions in order to increase the magnitude of the forces and provide future viable technological applications from that phenomenon.
Induction of Forces at Distance Performed by Piezoelectric Materials  [PDF]
Elio B. Porcelli, Victo S. Filho
Journal of Power and Energy Engineering (JPEE) , 2018, DOI: 10.4236/jpee.2018.61004
Abstract: We describe the phenomenon of generation of an external field of forces from piezoelectric materials subjected to the application of electric fields or mechanical stress. We show that piezoelectric materials are capable of producing nonlocal forces of induction in external objects and we conclude that the nature of the forces generated is not originated from traditional interactions. Further we specifically assert that the generation of forces by the piezoelectric materials is ruled by the hypothesis of preexisting condition of generalized quantum entanglement between the molecular structure of the material bulk and the surrounding environment. In addition, the widely spread coupling of the molecules with the environment can be manifested from the so-called direct effect or the converse effect in piezoelectric materials and this coupling is not intermediated by acoustic waves or electromagnetic fields. We show that the novel effect has a theoretical explanation consistent with the generalized quantum entanglement framework and the direction of the induced forces depends on either the direction of the mechanical force or the electric field applied in these materials.
Analysis of Possible Nonlocal Effects in Laser Beams Generated by Piezoelectric Ceramic  [PDF]
Elio B. Porcelli, Victo S. Filho
Journal of Power and Energy Engineering (JPEE) , 2018, DOI: 10.4236/jpee.2018.62002
Abstract: We report in the present work a novel effect associated with deviations of laser beams when in the surroundings there is a piezoelectric ceramic subjected to high voltages. In our previous work we presented experimental evidences of the generation of forces at distance by piezoelectric materials. Hence a methodology for remote sensing and metrology which enhanced the weak effects of the property of generalized quantum entanglement was proposed. The preexisting state between all existing particles in physical systems can allow that piezoelectric ceramics induct forces at distance detected by a sensible accelerometer apart without involving any known local interaction such as those of acoustic or electromagnetic nature. Motivated by the results, we proceed and discover that new unprecedented visual effects arise when nonlocal forces generated by a piezoelectric ceramic change the laser beam profiles even considering its weakness. This novel effect seems to be really detected in our experiments and this achievement opens one opportunity more for developing new technological applications.
Anthrax Lethal Toxin-Mediated Killing of Human and Murine Dendritic Cells Impairs the Adaptive Immune Response
Abdelkrim Alileche,Evan R Serfass,Stefan M Muehlbauer,Steven A Porcelli,Jürgen Brojatsch
PLOS Pathogens , 2005, DOI: 10.1371/journal.ppat.0010019
Abstract: Many pathogens have acquired strategies to combat the immune response. Bacillus anthracis interferes with host defenses by releasing anthrax lethal toxin (LT), which inactivates mitogen-activated protein kinase pathways, rendering dendritic cells (DCs) and T lymphocytes nonresponsive to immune stimulation. However, these cell types are considered resistant to killing by LT. Here we show that LT kills primary human DCs in vitro, and murine DCs in vitro and in vivo. Kinetics of LT-mediated killing of murine DCs, as well as cell death pathways induced, were dependent upon genetic background: LT triggered rapid necrosis in BALB/c-derived DCs, and slow apoptosis in C57BL/6-derived DCs. This is consistent with rapid and slow killing of LT-injected BALB/c and C57BL/6 mice, respectively. We present evidence that anthrax LT impairs adaptive immunity by specifically targeting DCs. This may represent an immune-evasion strategy of the bacterium, and contribute to anthrax disease progression. We also established that genetic background determines whether apoptosis or necrosis is induced by LT. Finally, killing of C57BL/6-derived DCs by LT mirrors that of human DCs, suggesting that C57BL/6 DCs represent a better model system for human anthrax than the prototypical BALB/c macrophages.
Anthrax lethal toxin-mediated killing of human and murine dendritic cells impairs the adaptive immune response.
Alileche Abdelkrim,Serfass Evan R,Muehlbauer Stefan M,Porcelli Steven A
PLOS Pathogens , 2005,
Abstract: Many pathogens have acquired strategies to combat the immune response. Bacillus anthracis interferes with host defenses by releasing anthrax lethal toxin (LT), which inactivates mitogen-activated protein kinase pathways, rendering dendritic cells (DCs) and T lymphocytes nonresponsive to immune stimulation. However, these cell types are considered resistant to killing by LT. Here we show that LT kills primary human DCs in vitro, and murine DCs in vitro and in vivo. Kinetics of LT-mediated killing of murine DCs, as well as cell death pathways induced, were dependent upon genetic background: LT triggered rapid necrosis in BALB/c-derived DCs, and slow apoptosis in C57BL/6-derived DCs. This is consistent with rapid and slow killing of LT-injected BALB/c and C57BL/6 mice, respectively. We present evidence that anthrax LT impairs adaptive immunity by specifically targeting DCs. This may represent an immune-evasion strategy of the bacterium, and contribute to anthrax disease progression. We also established that genetic background determines whether apoptosis or necrosis is induced by LT. Finally, killing of C57BL/6-derived DCs by LT mirrors that of human DCs, suggesting that C57BL/6 DCs represent a better model system for human anthrax than the prototypical BALB/c macrophages.
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