The aim of this paper is to provide new characterizations of the curvature dimension condition in the context of metric measure spaces (X,d,m). On the geometric side, the authors' new approach takes into account suitable weighted action functionals which provide the natural modulus of K-convexity when one investigates the convexity properties of N-dimensional entropies. On the side of diffusion semigroups and evolution variational inequalities, the authors' new approach uses the nonlinear diffusion semigroup induced by the N-dimensional entropy, in place of the heat flow. Under suitable assumptions (most notably the quadraticity of Cheeger's energy relative to the metric measure structure) both approaches are shown to be equivalent to the strong CD∗(K,N) condition of Bacher-Sturm.
We usually see the Renaissance as a marked departure from older traditions, but Renaissance scholars often continued to cling to the teachings of the past. For instance, despite the evidence of their own dissections, which contradicted ancient and medieval texts, Renaissance anatomists continued to teach those outdated views for nearly two centuries. In Books of the Body, Andrea Carlino explores the nature and causes of this intellectual inertia. On the one hand, anatomical practice was constrained by a reverence for classical texts and the belief that the study of anatomy was more properly part of natural philosophy than of medicine. On the other hand, cultural resistance to dissection and dismemberment of the human body, as well as moral and social norms that governed access to cadavers and the ritual of their public display in the anatomy theater, also delayed anatomy's development. A fascinating history of both Renaissance anatomists and the bodies they dissected, this book will interest anyone studying Renaissance science, medicine, art, religion, and society.
This book is comprehensive and profound, concrete and symbolic, a Herculean integration of the technical and the psychoanalytic. It explains technology and definitions of cyberspace, virtual reality, and social media, and presents the view that technology is a destructive force in psychoanalysis.
The novel aim of this book is to illustrate the MR imaging features of the fetal and the neonatal brain by matching prenatal and postnatal images for a wide range of neurological abnormalities. The focus is on both conventional and advanced MR imaging techniques, including high-resolution MR autopsy of the fetal brain. During the past ten years, neuroradiological evaluation of the neonatal and the prenatal brain has advanced tremendously. However, even though they are intrinsically related, these two critical stages in brain development are usually studied and presented separately. In order to have a sound understanding of neonatal brain diseases, detailed knowledge of prenatal brain pathology is immensely helpful; conversely, knowledge of neonatal brain disease is a prerequisite for understanding many fetal brain lesions. Written by experts in the field, Perinatal Neuroradiology will be of value for neuroradiologists and pediatric radiologists, as well as obstetricians and neonatologists.
Aim of this paper is to provide new characterizations of the curvature dimension condition in the context of metric measure spaces (X,d,m). On the geometric side, our new approach takes into account suitable weighted action functionals which provide the natural modulus of K-convexity when one investigates the convexity properties of N-dimensional entropies. On the side of diffusion semigroups and evolution variational inequalities, our new approach uses the nonlinear diffusion semigroup induced by the N-dimensional entropy, in place of the heat flow. Under suitable assumptions (most notably the quadraticity of Cheeger's energy relative to the metric measure structure) both approaches are shown to be equivalent to the strong CD*(K,N) condition of Bacher-Sturm.
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