Le Bonheur Est Une Science Exacte

D’APRÈS VOUS, QU’EST-CE QUI POURRAIT VOUS RENDRE PLUS HEUREUX ? GAGNER AU LOTO ? UN AN DE VACANCES ? UN PEU MOINS DE STRESS ? UN PEU PLUS DE TEMPS LIBRE ? Enrichi de son expérience de psychologue et d’hypnothérapeute, porté vers les autres, le Dr Jean Doridot délivre ici un enseignement d’une grande bienveillance et accessible à tous. Il nous révèle les vrais secrets du bonheur issus des recherches les plus récentes en psychologie et en neurosciences. Depuis près de 20 ans se développe une psychologie dite « positive », où l’on observe comment fonctionne la psyché des personnes qui vont bien. Cet ouvrage se propose de vous faire découvrir ces trouvailles surprenantes ou évidentes avec, à l’appui, des témoignages de vie, des études scientifiques, des clés, des exercices. « Même s’il peut participer au bonheur, le plaisir, seul, n’est pas le bonheur. » « Le bonheur ne se trouve pas tant dans le succès professionnel ou financier que dans la qualité de nos connexions aux autres. » « Le bonheur, en fait, ça s’apprend ! » Le bonheur est surtout et avant tout une ressource infinie à l’intérieur de chacun de nous, qui se construit et s’entretient chaque jour. Jean Doridot est docteur en psychologie. C’est après des études d’ingénieur et quelques années dans le conseil qu’il a choisi de se consacrer à l’essentiel : aider le plus grand nombre à mieux utiliser ses ressources intérieures. Auteur et conférencier, il enseigne la psychologie à l’université, pratique l’hypnose en cabinet et intervient régulièrement dans les médias. Il est à l’origine de l’application de méditation Zenfie qui compte près d’un million d’utilisateurs.

This book explores the perceived paradigmatic conflict within British classical economics between the so called 'Ricardo School' and the contemporary French Economics of Jean-Baptiste Say. Samuel Hollander provides the reader with extensive evidence, utilizing all editions of Say's main texts and his lesser-known writings in order to demonstrate his adherence to much of Ricardian theory. This intriguing book focuses on selected doctorinal issues and surrounding debates, and will interest all serious historians of economic thought, finding a place on the bookshelves of many economists across the world.

The first part of this book provides a self-contained and accessible introduction to the subject in the general setting of pseudo-Riemannian manifolds and their non-degenerate submanifolds, only assuming from the reader some basic knowledge about manifold theory. A number of recent results on pseudo-Riemannian submanifolds are also included. The second part of this book is on δ-invariants, which was introduced in the early 1990s by the author. The famous Nash embedding theorem published in 1956 was aimed for, in the hope that if Riemannian manifolds could be regarded as Riemannian submanifolds, this would then yield the opportunity to use extrinsic help. However, this hope had not been materialized as pointed out by M Gromov in his 1985 article published in Asterisque. The main reason for this is the lack of control of the extrinsic invariants of the submanifolds by known intrinsic invariants. In order to overcome such difficulties, as well as to provide answers for an open question on minimal immersions, the author introduced in the early 1990s new types of Riemannian invariants, known as δ-invariants, which are very different in nature from the classical Ricci and scalar curvatures. At the same time he was able to establish general optimal relations between δ-invariants and the main extrinsic invariants. Since then many new results concerning these δ-invariants have been obtained by many geometers. The second part of this book is to provide an extensive and comprehensive survey over this very active field of research done during the last two decades. Contents:Pseudo-Riemannian ManifoldsBasics on Pseudo-Riemannian SubmanifoldsSpecial Pseudo-Riemannian SubmanifoldsWarped Products and Twisted ProductsRobertson–Walker SpacetimesHodge Theory, Elliptic Differential Operators and Jacobi's Elliptic FunctionsSubmanifolds of Finite TypeTotal Mean CurvaturePseudo-Kähler ManifoldsPara-Kähler ManifoldsPseudo-Riemannian SubmersionsContact Metric Manifolds and Submanifoldsδ-Invariants, Inequalities and Ideal ImmersionsSome Applications of δ-InvariantsApplications to Kähler and Para-Kähler GeometryApplications to Contact GeometryApplications to Affine GeometryApplications to Riemannian SubmersionsNearly Kähler Manifolds and Nearly Kähler S6(1)δ(2)-Ideal Immersions Readership: Graduate and PhD students in differential geometry and related fields; researchers in differential geometry and related fields; theoretical physicists. Keywords:Pseudo-Riemannian Submanifold;δ-Invariants;Spacetimes;Submersion;Lagrangian Submanifolds;Sasakian Manifold;Total Mean Curvature;Submanifold of Finite Type;Affine HypersurfaceKey Features:This is the only book that provides general results on pseudo-Riemannian submanifoldsThis is the only book that provides detailed account on δ-invariantsAt the beginning of each chapter, historical background is providedReviews: “This book gives an extensive and in-depth overview of the theory of pseudo-Riemannian submanifolds and of the delta-invariants. It is written in an accessible and quite self-contained way. Hence it is recommendable for a very broad audience of students and mathematicians interested in the geometry of submanifolds.” Mathematical Reviews “This books is an extensive and comprehensive survey on pseudo–Riemannian submanifolds and δ–invariants as well as their applications. In every aspect, this is an excellent book, invaluable both for learning the topic and a reference. Therefore, it should be strongly recommended for students and mathematicians interested in the geometry of pseudo-Riemannian submanifolds.” Zentralblatt MATH

Friedrich Nietzsche hat Frankreich ein Leben lang geschätzt. Es war gleichzeitig das Land, in dem er sichfrühestens verstanden zu wissen glauben durfte.Nietzsche und Frankreich umreißteine Vielzahl und Vielfalt unterschiedlicher Begegnungen, die sich jeweils durch ihre Wechselwirkung auszeichnen und in ihrer historischen wie systematischen Tiefendimensionund Aktualität ausgelotet werden.

Un Grand Médecin et Biologiste Casimir-Joseph Davaine (1812—1882)