1,831 research outputs found
Adolescents' experiences of street harassment: creating a typology and assessing the emotional impact
Purpose: Research examining young people's experiences of harassment has tended to focus on the school and digital environment. Despite street harassment being identified as a common experience for adult women, very few studies have explored adolescents' experiences of street harassment.
Methodology: A person centred analytical approach, based on experienced reporting, was used to create a typology of street harassment. Reports of street harassment were received from 118 (68 female, 43 male, 7 no gender reported) 11- to 15-year-olds over a 6 to 8 week period.
Findings: Cluster analysis revealed four distinct groups: "predominately verbal", "non-verbal/non-direct", "other incident", and "all forms". Young women and those in the "all forms" group reported experiencing greater negative emotions following the episode of street harassment. Young men were equally as likely as young women to report experiencing street harassment.
Value: The findings uniquely highlight that adolescents experience distinct types of street harassment and some of which are associated with negative emotions
The ATLAS tile calorimeter digitizer
The ATLAS Tile Calorimeter digitizer system samples photomultiplier signals from the scintillating tiles of the hadronic calorimeter. For each channel a pair of 10-bit ADCs digitize high and low gain signals at 40.08 MHz to provide the necessary 16-bit dynamic range. The sampled data is temporarily stored in digital pipelines for up to 6.375 \mus, awaiting a level-1 accept. For each accept received, the corresponding sampled pulse is transferred to a derandomizer buffer for subsequent readout to the data acquisition system (DAQ). The main functionality of the digitizer is implemented in radiation tolerant ASICs, using a fault tolerant architecture to minimize the consequences of radiation induced faults
Second-order corrections to mean field evolution for weakly interacting Bosons. I
Inspired by the works of Rodnianski and Schlein and Wu, we derive a new
nonlinear Schr\"odinger equation that describes a second-order correction to
the usual tensor product (mean-field) approximation for the Hamiltonian
evolution of a many-particle system in Bose-Einstein condensation. We show that
our new equation, if it has solutions with appropriate smoothness and decay
properties, implies a new Fock space estimate. We also show that for an
interaction potential , where is
sufficiently small and , our program can be easily
implemented locally in time. We leave global in time issues, more singular
potentials and sophisticated estimates for a subsequent part (part II) of this
paper
Bounds for anisotropic Carleson operators
We prove weak bounds for maximally modulated anisotropically
homogeneous smooth multipliers on . These can be understood as
generalizing the classical one-dimensional Carleson operator. For the proof we
extend the time-frequency method by Lacey and Thiele to the anistropic setting.
We also discuss a related open problem concerning Carleson operators along
monomial curves.Comment: 26 page
Local smoothing for scattering manifolds with hyperbolic trapped sets
We prove a resolvent estimate for the Laplace-Beltrami operator on a
scattering manifold with a hyperbolic trapped set, and as a corollary deduce
local smoothing. We use a result of Nonnenmacher-Zworski to provide an estimate
near the trapped region, a result of Burq and Cardoso-Vodev to provide an
estimate near infinity, and the microlocal calculus on scattering manifolds to
combine the two.Comment: 16 pages. Published version available at
http://www.springerlink.com/content/r663321331243288/?p=5ad2fe4778a742e4949de2030a409358&pi=1
Asymptotic Lower Bounds for a class of Schroedinger Equations
We shall study the following initial value problem: \begin{equation}{\bf
i}\partial_t u - \Delta u + V(x) u=0, \hbox{} (t, x) \in {\mathbf R} \times
{\mathbf R}^n, \end{equation} where is a real short--range
potential, whose radial derivative satisfies some supplementary assumptions.
More precisely we shall present a family of identities satisfied by the
solutions to the previous Cauchy problem. As a by--product of these identities
we deduce some uniqueness results and a lower bound for the so called local
smoothing which becomes an identity in a precise asymptotic sense.Comment: 24 pages. to appear on Comm. Math. Phy
Measurement of the cross-section and charge asymmetry of bosons produced in proton-proton collisions at TeV with the ATLAS detector
This paper presents measurements of the and cross-sections and the associated charge asymmetry as a
function of the absolute pseudorapidity of the decay muon. The data were
collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with
the ATLAS experiment at the LHC and correspond to a total integrated luminosity
of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements
varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the
1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured
with an uncertainty between 0.002 and 0.003. The results are compared with
predictions based on next-to-next-to-leading-order calculations with various
parton distribution functions and have the sensitivity to discriminate between
them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables,
submitted to EPJC. All figures including auxiliary figures are available at
https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13
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