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Lorentz and Poincaré Invariance
  • Language: en
  • Pages: 616

Lorentz and Poincaré Invariance

This collection of papers provides a broad view of the development of Lorentz and Poincaré invariance and spacetime symmetry throughout the past 100 years. The issues explored in these papers include: (1) formulations of relativity theories in which the speed of light is not a universal constant but which are consistent with the four-dimensional symmetry of the Lorentz and Poincaré groups and with experimental results, (2) analyses and discussions by Reichenbach concerning the concepts of simultaneity and physical time from a philosophical point of view, and (3) results achieved by the union of the relativity and quantum theories, marking the beginnings of quantum electrodynamics and relat...

Space-time Symmetry and Quantum Yang-Mills Gravity
  • Language: en
  • Pages: 289

Space-time Symmetry and Quantum Yang-Mills Gravity

YangOCoMills gravity is a new theory, consistent with experiments, that brings gravity back to the arena of gauge field theory and quantum mechanics in flat space-time. It provides solutions to long-standing difficulties in physics, such as the incompatibility between Einstein''s principle of general coordinate invariance and modern schemes for a quantum mechanical description of nature, and Noether''s OCyTheorem IIOCO which showed that the principle of general coordinate invariance in general relativity leads to the failure of the law of conservation of energy. YangOCoMills gravity in flat space-time appears to be more physically coherent than conventional gravity in curved space-time. The ...

A Broader View of Relativity
  • Language: en
  • Pages: 540

A Broader View of Relativity

A Broader View of Relativity shows that there is still new life in old physics. The book examines the historical context and theoretical underpinnings of Einstein''s theory of special relativity and describes Broad Relativity, a generalized theory of coordinate transformations between inertial reference frames that includes Einstein''s special relativity as a special case. It shows how the principle of relativity is compatible with multiple concepts of physical time and how these different procedures for clock synchronization can be useful for thinking about different physical problems, including many-body systems and the development of a Lorentz-invariant thermodynamics. Broad relativity al...

General Yang-mills Symmetry: From Quark Confinement To An Antimatter Half-universe
  • Language: en
  • Pages: 249

General Yang-mills Symmetry: From Quark Confinement To An Antimatter Half-universe

This monograph expounds on general Yang-Mills symmetry, a new symmetry based on arbitrary vector gauge functions and Hamilton's characteristic phase functions in the gauge transformations of Abelian and non-Abelian groups. General Yang-Mills symmetry includes the conventional gauge symmetries as special cases and is useful for describing phenomena at scales ranging from the super-macroscopic such as dark matter, to the ultra-microscopic such as the quantum 3-body problem of baryons. Moreover, this symmetry supports the Broader Particle-Cosmology framework based on particle physics and quantum Yang-Mills gravity in flat space-time, which can explain why the gravitational force is always attractive. This volume also discusses how CPT invariance in particle physics suggests a 'Big Jets' model for the birth of the universe, proposing one explanation for the dearth of anti-matter in our universe. Finally, we discuss a simplified quantum shell model for N baryons with a quark Hamiltonian and a Sonine-Laguerre equation that gives reasonable eigenvalues for the energies of the 29 N baryons.

Pregnancy and Allergy, An Issue of Immunology and Allergy Clinics of North America, EBook
  • Language: en
  • Pages: 225

Pregnancy and Allergy, An Issue of Immunology and Allergy Clinics of North America, EBook

In this issue, guest editors bring their considerable expertise to this important topic. Provides in-depth reviews on the latest updates in the field, providing actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize

Einstein's Relativity and Beyond
  • Language: en
  • Pages: 450

Einstein's Relativity and Beyond

The purposes of this book are (1) to explore and expound relativity physics and four-dimensional symmetry from the logically simplest viewpoint by making one single postulate instead of two; and (2) to indicate the simplest generalization of the Lorentz transformation in order to cope with frames with constant linear acceleration.

Research on Physics Education
  • Language: en
  • Pages: 688

Research on Physics Education

  • Type: Book
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  • Published: 2004-08-09
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  • Publisher: IOS Press

Physics Education research is a young field with a strong tradition in many countries. However, it has only recently received full recognition of its specificity and relevance for the growth and improvement of the culture of Physics in contemporary Society for different levels and populations. This may be due on one side to the fact that teaching, therefore education, is part of the job of university researchers and it has often been implicitly assumed that the competences required for good research activity also guarantee good teaching practice. On the other side, and perhaps more important, is the fact that the problems to be afforded in doing research in education are complex problems tha...

Prenatal Stress and Child Development
  • Language: en
  • Pages: 653

Prenatal Stress and Child Development

This book examines the complex impact of prenatal stress and the mechanism of its transmission on children’s development and well-being, including prenatal programming, epigenetics, infl ammatory processes, and the brain-gut microbiome. It analyzes current findings on prenatal stressors affecting pregnancy, including preconception stress, prenatal maternal depression, anxiety, and pregnancy-specific anxieties. Chapters explore how prenatal stress affects cognitive, affective, behavioral, and neurobiological development in children while pinpointing core processes of adaptation, resilience, and interventions that may reduce negative behaviors and promote optimal outcomes in children. Th is ...

2004 Physics Education Research Conference
  • Language: en
  • Pages: 234

2004 Physics Education Research Conference

The 2004 Physics Education Research (PER) Conference brought together researchers in how we teach physics and how it is learned. Student understanding of concepts, the efficacy of different pedagogical techniques, and the importance of student attitudes toward physics and knowledge were all discussed. These Proceedings capture an important snapshot of the PER community, containing an incredibly broad collection of research papers of work in progress.

Achieving Respiratory Health Equality
  • Language: en
  • Pages: 205

Achieving Respiratory Health Equality

  • Type: Book
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  • Published: 2016-10-26
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  • Publisher: Humana Press

Including comprehensive coverage of health disparities commonly encountered in pediatric and adult pulmonary, critical care, and sleep medicine, Achieving Respiratory Health Equality in the United States provides a definitive reference on this prominent issue. Expert authors explore questions such as: * What is the evidence that respiratory health disparities exist? * What do we know about the causes of the disparities? * What are the clinical implications? * What can be done to address the particular disparities and thus achieve health equality? Recognizing the magnitude of this problem, the American Thoracic Society (ATS) Executive Committee created a Health Equality Sub-Committee, with an...