- Full text PDF available (14)
- This year (0)
- Last 5 years (1)
- Last 10 years (5)
Journals and Conferences
We obtain a global version of the Hamiltonian KAM theorem for invariant Lagrangean tori by glueing together local KAM conjugacies with help of a partition of unity. In this way we find a global Whitney smooth conjugacy between a nearly integrable system and an integrable one. This leads to preservation of geometry, which allows us to define all nontrivial… (More)
In this Preface, we make some brief remarks about the history, theory and applications of symplectic reduction. We concentrate on developments surrounding our paper Marsden and Weinstein  and the closely related work of Meyer , so the reader may find some important references omitted. This is inevitable in a subject that has grown so large and… (More)
Economic issues have had a growing importance in the health care field as the sector's share of the gross national product has risen. Clinicians are under increasing pressure to adopt more cost-effective treatment practices as a result of initiatives being taken by the major third-party payers, government, and business. However, recent publications suggest… (More)
BACKGROUND AND OBJECTIVES This study reports on a novel qualitative method for evaluating family practice training programs. Previous evaluation techniques have generally been quantitative in nature and have limited their scope to a few isolated elements of residency education. METHODS A guest faculty, working in conjunction with local faculty, conducted… (More)
United States health care is engaged in an ambitious project to make its clinical and administrative records "100% electronic." Substantial benefits are expected in both clinical care delivery and medical research (especially for public health surveillance and outcomes/effectiveness studies). Substantial costs also potentially accrue, beyond the large… (More)
Le timbre de la trompette est noble et éclatant; il convient aux idées guerrières, aux cris de fureur et de vengeance, comme aux chants de triomphe, il se prête à l’expression de tous les sentiments énergiques, fiers et grandioses, à la plus part des accents tragiques. Il peut même figurer dans un morceau joyeux, pourvu que la joie y prenne un caractère… (More)
Four flourescein isothiocyanate (FITC) derivatives of Naja naja siamemsis 3 neurotoxin (alpha-toxin), labeled at the epsilon-amino groups of Lys-23, Lys-35, Lys-49, or Lys-69, and a tetramethylrhodamine isothiocyanate (TRITC) derivative, labeled at epsilon-amino group of Lys-23, were prepared and used to analyze the orientation of cobra alpha-toxin on the… (More)
In this paper we describe the geometry of the energy momentum mapping of the complexified spherical pendulum. For background on the classical spherical pendulum we refer the reader to [4, chpt. IV]. We show that this complex Hamiltonian system is Mumford-Jacobi completely integrable [9, p.3.51–3.53] and admits an analogue of the period lattice  and… (More)
3 In this note we show that the monodromy of a two degree of freedom integrable Hamiltonian system has a universal sign in the case of a focus-focus singularity. We also show how to extend the monodromy index to several focus-focus fibers when the integrable system has an S1 symmetry.
The Stanley decomposition of the joint covariants of three quadratics is computed using a new transvectant algorithm and computer algebra. This is sufficient to compute the general form of the normal form with respect to a nilpotent with three 3-dimensional irreducible blocks.