Zeanissia Moore

How often does it occur that the measure of maximal entropy of a system is an SRB measure? We study this question for partially hyperbolic diffeomorphisms isotopic to Anosov (DA-diffeomorphisms) on , and establish a rigidity result: the measure of maximal entropy is an SRB measure if and only if the sum of its positive Lyapunov exponents coincides with that of the linear Anosov map on all periodic orbits of the support of the measure. In that case, the measure is also the unique physical measure.\par We also show non-Anosov examples satisfying this condition, both in the conservative and in the non-conservative setting. \par Finally, we prove that a volume-preserving DA-diffeomorphism on is Anosov if all Lyapunov exponents coincide almost everywhere with those of the linear Anosov in the isotopy class. Consequently, a smooth DA-diffeomorphism is smoothly conjugated to its linear part if and only if all Lyapunov exponents coincide almost everywhere with those of its linear part.

The notion of a Wiener-Wintner dynamical system provides a simple proof of pointwise convergence for double recurrence in the case where the Wiener-Wintner averages converge to zero at a polynomial rate for a dense set of functions that lie outside the Kronecker factor. This follows by exploiting a bound that arises in the beginning of Bourgain argument for double recurrence. We extend this bound to triple and higher recurrence and define the notion of a higher order Wiener-Wintner dynamical system, in which pointwise convergence of higher recurrence follows by a similar simple argument. We provide examples of dynamical systems that satisfy this condition, and also show how the higher order Wiener-Wintner averaging condition can provide an alternative characterization of Host-Kra-Ziegler factors. We will also provide a proof of the return times theorem for multiple recurrence for this class of systems.

The purpose of this study was to investigate the effect of obesity on immunoglobulin G (IgG) pharmacokinetics in a rat model of obesity, and to collect clinical evidence for an association between the body composition and intravenous immune globulin (IVIG) pharmacokinetic parameters in humans. In a preclinical study, pharmacokinetics of human IgG was evaluated after intravenous (IV) and subcutaneous (SC) delivery to obese and lean rats (n = 6 in each group). Serial serum samples were analyzed using an ELISA. The animal body composition was assessed using computer tomography. Patients with primary immunodeficiency currently managed with IVIG, and at a steady state, were enrolled in the clinical study (n = 8). Serum immune globulin (Ig) concentrations were measured at baseline and immediately after the administration of two consecutive treatments, with an additional measurement at two weeks after the first administration. In addition to the patient demographic and clinical characteristics, body composition was measured using bioelectrical impedance analysis. The pharmacokinetics of human IgG was significantly different between the obese and lean rats after both the IV and SC administration of 0.5 g/kg. Furthermore, a significant difference in endogenous rat IgG was observed between the two strains. In the human study, total serum IgG and subtype (IgG1, IgG2, IgG3, IgG4) half-life negatively correlated with the body mass index and fat mass. The mean change in the total serum IgG concentration was significantly correlated to body mass index and fat mass. The results of the studies corroborated one another. In the animal study …

Referees 2023 - - Environmental Ethics (Philosophy Documentation Center) Skip to Main Content LOGIN PRODUCTS All Products Online Resources Journals & Series Books & Digital Media MEMBERSHIPS Societies & Associations Conference Registrations E-COLLECTION About Alphabetically By Category Price Lists Terms and Conditions SERVICES Conference Exhibits Electronic Publishing Journal Advertising Mailing Lists Marketing Services Membership Services Production & Typesetting Subscription Fulfillment SEARCH pdcnet.org E-Collection ABOUT About us Contact FAQs Order Info Privacy Support Follow us on Facebook Cover of Environmental Ethics Environmental Ethics Volume 45, Issue 4, Winter 2023 2022 ISEE Special Issue Page 427 https://doi.org/10.5840/enviroethics202345465 Referees 2023 << Previous Article Preview this Page in PDF >> Next Article Usage and Metrics Plumx Metrics …

An observation is reported of the electroweak production of a W+ W− pair in association with two jets, with both W bosons decaying leptonically. The data sample corresponds to an integrated luminosity of 138 fb− 1 of proton-proton collisions at s= 13 TeV, collected by the CMS detector at the CERN LHC. Events are selected by requiring exactly two opposite-sign leptons (electrons or muons) and two jets with large pseudorapidity separation and high dijet invariant mass. Events are categorized based on the flavor of the final-state leptons. A signal is observed with a significance of 5.6 standard deviations (5.2 expected) with respect to the background-only hypothesis. The measured fiducial cross section is 10.2±2.0 fb and this value is consistent with the standard model prediction of 9.1±0.6 fb.

Effective management of pediatric perioperative pain is typically goal-directed and multimodal, requiring various imperfect agents in combination to provide analgesia and support recovery. Gabapentinoids are one such class of agents often used in pediatric analgesic and enhanced recovery pathways. In adults, gabapentinoids have been associated with a modest reduction in pain scores but are often avoided due to undesired side effects. Children may be less susceptible to these unwanted effects, and the reduction in pain, agitation, and post-operative nausea and vomiting seen with these medications may confer significant benefit. While further studies are needed, to date there is no evidence to suggest a significantly increased risk of adverse effects in generally healthy children treated with gabapentinoids in the perioperative period. Although current evidence does not support their indiscriminate use, there …

The path-length dependent parton energy loss within the dense partonic medium created in lead-lead collisions at a nucleon-nucleon center-of-mass energy of= 5. 02 TeV is studied by determining the azimuthal anisotropies for dijets with high transverse momentum. The data were collected by the CMS experiment in 2018 and correspond to an integrated luminosity of 1.69 nb− 1. For events containing back-to-back jets, correlations in relative azimuthal angle and pseudorapidity (η) between jets and hadrons, and between two hadrons, are constructed. The anisotropies are expressed as the Fourier expansion coefficients v n, n= 2–4 of these azimuthal distributions. The dijet v n values are extracted from long-range (1. 5<|∆ η|< 2. 5) components of these correlations, which suppresses the background contributions from jet fragmentation processes. Positive dijet v 2 values are observed which increase from …

IntroductionRegional techniques are a key component of multimodal analgesia and help decrease opioid use perioperatively, but some techniques may not be suitable for all patients, such as those with spina bifida. We hypothesized peripheral regional catheters would reduce postoperative opioid use compared with no regional analgesia without increasing pain scores in pediatric patients with spina bifida undergoing major urological surgery.MethodsA retrospective review of a multicenter database established for the study of enhanced recovery after surgery was performed of patients from 2009 to 2021 who underwent bladder augmentation or creation of catheterizable channels. Patients without spina bifida and those receiving epidural analgesia were excluded. Opioids were converted into morphine equivalents and normalized to patient weight.Results158 patients with pediatric spina bifida from 7 centers were …