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The only thing more full of holes than this movie's premise is its script. Flatliners is the ideal showcase for Joel Schumacher's glorious, flamboyant, brazen lack of talent. The plot is totally illogical but super fake-ponderous and everything is art-directed within an inch of its life in the most clichéd, overheated way. I love how the med school autopsy room is a cavernous vaulted marble mausoleum low-lit in red with huge Rembrandt paintings hanging from the walls. I love how Keifer Sutherland drives a canvas-backed army jeep. No one in Joel Schumacher's movies lives in an un-eccentric manner. It's always an alternate universe where everyone is young and painfully hip, but hip strictly and obsessively according to an out-of-touch middle-aged billionaire man-child's idea of hip. And holy crap! The part where Baldwin brother #16 dies and comes back to life and then is haunted by all the women he's slept with who intone "I'll call you" and "I just need some space" is the funniest friggin' thing in the whole universe!!!! What kind of a world do we live in where Joel Schumacher gets to keep having people throw money at him? "Flatliners" made me want to review the man's entire oeuvre solely for the kind of high-quality yuks contained therein.
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Directly imaging and characterizing Earth-like exoplanets is a tremendously
difficult instrumental challenge. Present coronagraphic systems have yet to
achieve the required $10^{-10}$ broadband contrast in a laboratory environment,
but promising progress towards this goal continues. A new approach to starlight
suppression is the use of a single-mode fiber behind a coronagraph. By using
deformable mirrors to create a mismatch between incoming starlight and the
fiber mode, a single-mode fiber can be turned into an integral part of the
starlight suppression system. In this paper, we present simulation results of a
system with five single-mode fibers coupled to shaped pupil and vortex
coronagraphs. We investigate the properties of the system, including its
spectral bandwidth, throughput, and sensitivity to low-order aberrations. We
also compare the performance of the single-mode fiber configuration with
conventional imaging and multi-object modes, finding improved spectral
bandwidth, raw contrast, background-limited SNR, and demonstrate a wavefront
control algorithm which is robust to tip/tilt errors.
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In the persistent homology of filtrations, the indecomposable decompositions
provide the persistence diagrams. However, in almost all cases of
multidimensional persistence, the classification of all indecomposable modules
is known to be a wild problem. One direction is to consider the subclass of
interval-decomposable persistence modules, which are direct sums of interval
representations. We introduce the definition of pre-interval representations, a
more natural algebraic definition, and study the relationships between
pre-interval, interval, and indecomposable thin representations. We show that
over the ``equioriented'' commutative $2$D grid, these concepts are equivalent.
Moreover, we provide a criterion for determining whether or not an $n$D
persistence module is interval/pre-interval/thin-decomposable without having to
explicitly compute decompositions. For $2$D persistence modules, we provide an
algorithm together with a worst-case complexity analysis that uses the total
number of intervals in an equioriented commutative $2$D grid. We also propose
several heuristics to speed up the computation.
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We obtain constraints on first- and second-generation scalar leptoquarks
using the available data on dilepton (Drell-Yan) and monojet searches at the
CERN Large Hadron Collider. Assuming that the leptoquark interactions respect
the Standard Model gauge symmetries as well as lepton and baryon numbers, we
show that the study of dilepton production enlarges the exclusion region on the
mass and coupling plane with respect to the pair production searches for
first-generation leptoquarks. Moreover, the monojet channel leads to a larger
excluded parameter region for moderate to large values of the leptoquark Yukawa
coupling than the presently available experimental results.
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Every society has public holidays, based on various excuses for one, including cultural tradition. These are ours, based on 2000 years of tradition.
In reality, there is little that remains religious about them today. Government-run operations may have a long weekend because unions negotiated those, but mostly life goes on as usual in the rest of society.
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In quantum logic, i.e., within the structure of the Hilbert lattice imposed
on all closed linear subspaces of a Hilbert space, the assignment of truth
values to quantum propositions (i.e., experimentally verifiable propositions
relating to a quantum system) is unambiguously determined by the state of the
system. So, if only pure states of the system are considered, can a probability
measure mapping the probability space for truth values to the unit interval be
assigned to quantum propositions? In other words, is a probability concept
contingent or emergent in the logic of quantum propositions? Until this
question is answered, the cause of probabilities in quantum theory cannot be
completely understood. In the present paper it is shown that the interaction of
the quantum system with its environment causes the irreducible randomness in
the relation between quantum propositions and truth values.
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Given data drawn from a mixture of multivariate Gaussians, a basic problem is
to accurately estimate the mixture parameters. We give an algorithm for this
problem that has a running time, and data requirement polynomial in the
dimension and the inverse of the desired accuracy, with provably minimal
assumptions on the Gaussians. As simple consequences of our learning algorithm,
we can perform near-optimal clustering of the sample points and density
estimation for mixtures of k Gaussians, efficiently. The building blocks of our
algorithm are based on the work Kalai et al. [STOC 2010] that gives an
efficient algorithm for learning mixtures of two Gaussians by considering a
series of projections down to one dimension, and applying the method of moments
to each univariate projection. A major technical hurdle in Kalai et al. is
showing that one can efficiently learn univariate mixtures of two Gaussians. In
contrast, because pathological scenarios can arise when considering univariate
projections of mixtures of more than two Gaussians, the bulk of the work in
this paper concerns how to leverage an algorithm for learning univariate
mixtures (of many Gaussians) to yield an efficient algorithm for learning in
high dimensions. Our algorithm employs hierarchical clustering and rescaling,
together with delicate methods for backtracking and recovering from failures
that can occur in our univariate algorithm. Finally, while the running time and
data requirements of our algorithm depend exponentially on the number of
Gaussians in the mixture, we prove that such a dependence is necessary.
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Does what they are suppose to but the color was cracked
They do what they are suppose to warn people about a new driver but the quality was not great all 3 were cracked the magnet part was fine. The colors were also different than represented in the photos. A brighter color like bright yellow would be better.
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We use techniques from both real and complex algebraic geometry to study
K-theoretic and related invariants of the algebra C(X) of continuous
complex-valued functions on a compact Hausdorff topological space X. For
example, we prove a parametrized version of a theorem of Joseph Gubeladze; we
show that if M is a countable, abelian, cancellative, torsion-free, seminormal
monoid, and X is contractible, then every finitely generated projective module
over C(X)[M] is free. The particular case when M=N^n gives a parametrized
version of the celebrated theorem proved independently by Daniel Quillen and
Andrei Suslin that finitely generated projective modules over a polynomial ring
over a field are free. The conjecture of Jonathan Rosenberg which predicts the
homotopy invariance of the negative algebraic K-theory of C(X) follows from the
particular case when M=Z^n. We also give algebraic conditions for a functor
from commutative algebras to abelian groups to be homotopy invariant on
C*-algebras, and for a homology theory of commutative algebras to vanish on
C*-algebras. These criteria have numerous applications. For example, the
vanishing criterion applied to nil-K-theory implies that commutative
C*-algebras are K-regular. As another application, we show that the familiar
formulas of Hochschild-Kostant-Rosenberg and Loday-Quillen for the algebraic
Hochschild and cyclic homology of the coordinate ring of a smooth algebraic
variety remain valid for the algebraic Hochschild and cyclic homology of C(X).
Applications to the conjectures of Beilinson-Soule and Farrell-Jones are also
given.
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Measurements of the temperature and density structure of the solar corona
provide critical constraints on theories of coronal heating. Unfortunately, the
complexity of the solar atmosphere, observational uncertainties, and the
limitations of current atomic calculations, particularly those for Fe, all
conspire to make this task very difficult. A critical assessment of plasma
diagnostics in the corona is essential to making progress on the coronal
heating problem. In this paper we present an analysis of temperature and
density measurements above the limb in the quiet corona using new observations
from the EUV Imaging Spectrometer (EIS) on \textit{Hinode}. By comparing the Si
and Fe emission observed with EIS we are able to identify emission lines that
yield consistent emission measure distributions. With these data we find that
the distribution of temperatures in the quiet corona above the limb is strongly
peaked near 1 MK, consistent with previous studies. We also find, however, that
there is a tail in the emission measure distribution that extends to higher
temperatures. EIS density measurements from several density sensitive line
ratios are found to be generally consistent with each other and with previous
measurements in the quiet corona. Our analysis, however, also indicates that a
significant fraction of the weaker emission lines observed in the EIS
wavelength ranges cannot be understood with current atomic data.
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We report on strongly temperature-dependent kinetics of negatively charged
carrier complexes in asymmetric InAs/AlGaInAs/InP quantum dots (dashes)
emitting at telecom wavelengths. The structures are highly elongated and of
large volume, which results in atypical carrier confinement characteristics
with $s$-$p$ shell energy splittings far below the optical phonon energy, which
strongly affects the phonon-assisted relaxation. Probing the emission kinetics
with time-resolved microphotoluminescence from a single dot, we observe a
strongly non-monotonic temperature dependence of the charged exciton lifetime.
Using a kinetic rate-equation model, we find that a relaxation side-path
through the excited charged exciton triplet states may lead to such behavior.
This, however, involves efficient singlet-triplet relaxation via the electron
spin-flip. Thus, we interpret the results as an indirect observation of
strongly enhanced electron spin relaxation without magnetic field, possibly
resulting from atypical confinement characteristics.
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What a waste of money
Did not last 3 months! Display died after only light use. I own a apple watch just thought I would try something else, took for ever to pair with Iphone X. Somehow did it on its own after a month of wearing it. Limited functions which was OK with me but no support form manufacturer and website says for returns only made directly from their website so I guess with Amazon I'm screwed. What a waste of money!
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The Drive had SMART Warnings, reported few pending sectors
The day I received the drive started backing up my data, when it was half full got read error, I loaded some tool that could read smart data, and it showed the drive had pending sectors which it indication of questionable bad sectors had the drive returned and got refund back
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I could not believe the low 5.6 rating on IMDb about Johnny Dangerously at the moment I wrote this review and I thought I had to do something to promote that memorable piece of comedy as much as I can. Seriously, to get a rating so low, the people who voted must have a very limited sense of humor, not to mention a very shallow opened mind. If you don't like humorous flicks, don't watch them! Combining absurd humour, a very good storytelling, and an outstanding pace given by the multiple running gags, this movie has made its way into my DVD collection. And that is without mentioning the visual farces embedded here and there and of course, the use of "clin d'oeils" and "clichés" based on our favorite organized crime movies. <br /><br />I showed this movie to a lot of people and, being introduced to it without any specific expectations (except maybe watching a comedy)- the very state of mind you should have to watch any movie in my opinion - they all liked it very much. It goes well, it's not long to watch and there are absolutely no slowing downs in the evolution of the story, which I think is really straightforward. Sure it's not perfect, some gags fall a bit short, but no movie is perfect, especially when considering other opinions that yours. That is why I rated this movie 9 out of 10. This movie is in my opinion a precursor like "Top Secret" and "Spaceballs" in the field of absurd but well-thought comedies. Which are nowadays more and more absurd while cutting down on the thought and ingeniosity side. Sometimes gags need more culture than a lot of people imagine to be understood correctly, if at all. As a final word, I would like to say : watch it for yourself, do not follow average Joe's saying and if you don't like it, then you'll know for real it was not good for your tastes, which is understandable but unlikely in my opinion.
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Closet Land is a nasty piece of work with superb actors. Nothing more (or less) happens in the movie besides the unending abuse of an attractive woman prisoner by a sadistic police official. The setting is minimalist. This might be considered soft core S&M porn because the drama is devoid of all reference points such as time, place, and political context. Since what happens is cut adrift in a fantasy futuristic environment, the abuse becomes purely personal. The pornographic aspects are justified by being a warning about the evils of totalitarian government, but because there is no real context for the torture of this young woman, we come away disturbed but having learned nothing.<br /><br />What is the point? That torture exists in the world? That abusing prisoners is bad? That dictatorships abuse innocent people? We know that already. Closet Land has echoes of such works as Darkness At Noon and Ionesco's Rhinoceros, but both those works were made by competent artists whose work had historical context and depth of meaning. This work is amateurish and the dialogue sophomoric. A definite thumbs down.
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We show that in superlattices with a strong band inversion no hybridization
gap exists. There are two points where the bands are crossing and the spectrum
has a shape of Dirac cones. Due to the absence of the hybridization gap the
optical absorption does not have a threshold and goes to zero gradually with
the decrease of optical energy.
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I have seen this movie many times and each time i watch it i can't help but be entertained by it. Gunga Din is one of those Classic movies made in Hollywoods Golden Years when the actors themselves had to draw the audience into a movie without relying on fantastic special effects and man made "monsters" to carry a scene. The onscreen charisma and comraderie demonstrated by Cary Grant, Victor McLaglen and Douglas Fairbanks Jr. is suberb and very entertaining to watch. The tongue and cheek attitude in which the three actors play their roles works beutifully and flawlessly. Some might consider it "corny" but i consider it "classic" filmaking and acting at its best. One must remember when watching this film that Europe was involved in a War with Germany and audiences went to the movies to escape from the horrors of war and to be entertained and taken away to a place where people were larger than life and did heroic deeds and good would always conquer over evil. Gunga Din accomplishes this perfectly by letting the audience laugh at and with the actors during their harrowing escapades. In short, its a classic film that doesnt take itself too seriously and doesnt want the audience to either.
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In this manuscript, we define and study probabilistic values for cooperative
games on simplicial complexes. Inspired by the work of Weber "Probabilistic
values for games", we establish the new theory step by step, following the
classical axiomatization, i.e. using the linearity axiom, the dummy axiom, etc.
Furthermore, we define Shapley values on simplicial complexes generalizing
the classical notion in literature. Remarkably, the traditional axiomatization
of Shapley values can be extended to this general setting for a rather
interesting class of complexes that generalize the notion of vertex-transitive
graphs and vertex-homogeneous simplicial complexes. These combinatorial objects
are very popular in the literature because of the study of Evasiveness
Conjecture in Complexity Theory.
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All of the mainstream expert professional groups and their members .. America's Pediatricians, Family Physicians, Internal Medicine Specialists, Dentist, Pediatric Dentists, Public Health scientists etc etc know that fluoridation prevents cavities and is safe. The fear mongering about enamel fluorosis is purposefully misleading. Too much toothpaste or high natural fluoride is the cause of all the fluorosis of legitimate concern. That associated with drinking water is not visible to casual examination and actually protects teeth from cavities. . .credible scientific references available. The decision to cease fluoridation will, as it did in Calgary, lead to more cavities.
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How can neural networks perform so well on compositional tasks even though
they lack explicit compositional representations? We use a novel analysis
technique called ROLE to show that recurrent neural networks perform well on
such tasks by converging to solutions which implicitly represent symbolic
structure. This method uncovers a symbolic structure which, when properly
embedded in vector space, closely approximates the encodings of a standard
seq2seq network trained to perform the compositional SCAN task. We verify the
causal importance of the discovered symbolic structure by showing that, when we
systematically manipulate hidden embeddings based on this symbolic structure,
the model's output is changed in the way predicted by our analysis.
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In the classical balls-and-bins paradigm, where $n$ balls are placed
independently and uniformly in $n$ bins, typically the number of bins with at
least two balls in them is $\Theta(n)$ and the maximum number of balls in a bin
is $\Theta(\frac{\log n}{\log \log n})$. It is well known that when each round
offers $k$ independent uniform options for bins, it is possible to typically
achieve a constant maximal load if and only if $k=\Omega(\log n)$. Moreover, it
is possible w.h.p. to avoid any collisions between $n/2$ balls if $k>\log_2n$.
In this work, we extend this into the setting where only $m$ bits of memory are
available. We establish a tradeoff between the number of choices $k$ and the
memory $m$, dictated by the quantity $km/n$. Roughly put, we show that for
$km\gg n$ one can achieve a constant maximal load, while for $km\ll n$ no
substantial improvement can be gained over the case $k=1$ (i.e., a random
allocation). For any $k=\Omega(\log n)$ and $m=\Omega(\log^2n)$, one can
achieve a constant load w.h.p. if $km=\Omega(n)$, yet the load is unbounded if
$km=o(n)$. Similarly, if $km>Cn$ then $n/2$ balls can be allocated without any
collisions w.h.p., whereas for $km<\epsilon n$ there are typically $\Omega(n)$
collisions. Furthermore, we show that the load is w.h.p. at least
$\frac{\log(n/m)}{\log k+\log\log(n/m)}$. In particular, for
$k\leq\operatorname {polylog}(n)$, if $m=n^{1-\delta}$ the optimal maximal load
is $\Theta(\frac{\log n}{\log\log n})$ (the same as in the case $k=1$), while
$m=2n$ suffices to ensure a constant load. Finally, we analyze nonadaptive
allocation algorithms and give tight upper and lower bounds for their
performance.
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In this study, we consider classification problems based on neural networks
in data-imbalanced environment. Learning from an imbalanced data set is one of
the most important and practical problems in the field of machine learning. A
weighted loss function based on cost-sensitive approach is a well-known
effective method for imbalanced data sets. We consider a combination of
weighted loss function and batch normalization (BN) in this study. BN is a
powerful standard technique in the recent developments in deep learning. A
simple combination of both methods leads to a size-mismatch problem due to a
mismatch between interpretations of effective size of data set in both methods.
We propose a simple modification to BN to correct the size-mismatch and
demonstrate that this modified BN is effective in data-imbalanced environment.
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We report results of the spectral and timing analysis of the Be/X-ray pulsar
SXP 4.78 using the data obtained during its recent outburst with NuSTAR, Swift,
Chandra and NICER observatories. Using an overall evolution of the system
luminosity, spectral analysis and variability power spectrum we obtain
constraints on the neutron star magnetic field strength. We found a rapid
evolution of the variability power spectrum during the rise of the outburst,
and absence of the significant changes during the flux decay. Several low
frequency quasi-periodic oscillation features are found to emerge on the
different stages of the outburst, but no clear clues on their origin were found
in the energy spectrum and overall flux behaviour. We use several indirect
methods to estimate the magnetic field strength on the neutron star surface and
found that most of them suggest magnetic field $B \lesssim 2 \times10^{12}$ G.
The strictest upper limit comes from the absence of the cyclotron absorption
features in the energy spectra and suggests relatively weak magnetic field $B <
6 \times 10^{11}$ G.
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Plasma oscillations in doped graphene bilayer at zero temperature has been
investigated. Bias voltage effect on the dispersion curve for plasmon in
bigraphene has been studied in random phase approximation. The possibility of
controlling of curvature of dispersion curve for plasmon by changing of bias
voltage has been shown. The dependence of this curvature on the bias voltage
has been predicted to have the nonmonotonous character. Namely the existence of
breaking point for such dependence has been found out. The bias voltage
corresponding to the breaking point is shown to increase with free carriers
concentration as square root of concentration.
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NA61/SHINE is a fixed target experiment at the CERN Super-Proton-
Synchrotron. The main goals of the experiment are to discover the critical
point of strongly interacting matter and to study the properties of the onset
of deconfinement. In order to reach these goals, a study of hadron production
properties is performed in nucleus-nucleus, proton-proton and proton-nucleus
interactions as a function of collision energy and size of the colliding
nuclei. In this paper, I will review recent results on strangeness production
in p+p, Be+Be and Ar+Sc collisions in the SPS energy range. Kinematic spectra
and mean multiplicities of kaons obtained with various analysis methods will be
shown. An overview of strangeness production and its dependence on system size
in the vicinity of the phase transition will be presented as well.
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We use non-equilibrium dynamical mean-field theory in combination with a
recently developed Quantum Monte Carlo impurity solver to study the real-time
dynamics of a Hubbard model which is driven out of equilibrium by a sudden
increase in the on-site repulsion U. We discuss the implementation of the
self-consistency procedure and some important technical improvements of the QMC
method. The exact numerical solution is compared to iterated perturbation
theory, which is found to produce accurate results only for weak interaction or
short times. Furthermore we calculate the spectral functions and the optical
conductivity from a Fourier transform on the finite Keldysh contour, for which
the numerically accessible timescales allow to resolve the formation of Hubbard
bands and a gap in the strongly interacting regime. The spectral function, and
all one-particle quantities that can be calculated from it, thermalize rapidly
at the transition between qualitatively different weak- and strong-coupling
relaxation regimes.
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NO SUCTION
My wife was looking forward to this pump because her breasts are producing more milk than the baby is taking in. I paid for fast 2 day shipping but it still took a week to get here. The directions are written in horrible English. You can see the cylinder going up and down but no suction. I pressed everything down tight and pressed the tubes in tight. No suction. My wife's breasts hurt and I'm a little upset this pump did not work.
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No fan of RTD management, but in their defense have withheld payments and have levied fines against Denver Transit Partners (DTP) and have forced DTP to pay for the crossing guards along the A, B and G lines. Short of firing DTP, and getting someone else to finish the job not sure what else RTD can do to hold DTP accountable.
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Several years after the pioneering work by Fermi Pasta and Ulam, fundamental
questions about the link between dynamical and statistical properties remain
still open in modern statistical mechanics. Particularly controversial is the
role of deterministic chaos for the validity and consistency of statistical
approaches. This contribution reexamines such a debated issue taking
inspiration from the problem of diffusion and heat conduction in deterministic
systems. Is microscopic chaos a necessary ingredient to observe such
macroscopic phenomena?
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These people should keep their hands off the county real property tax. I don't care if it's designated as a surcharge because it still appears that county real property taxes are going up. The same is true for the Rail surcharge which people believe is a part of the State excise tax. I don't really care about the hotel surcharge, but it involves the same confusion. They need to stop these games of pretend. No more surcharges and no more reserving part of the property tax for specific programs or agencies scubas the zoo. Everybody wants their own surcharge or sets aside for their program/pet project.
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We demonstrate that a system of nonlocally coupled noisy phase oscillators
can collectively exhibit a hole structure, which manifests itself in the
spatial phase distribution of the oscillators. The phase model is described by
a nonlinear Fokker-Planck equation, which can be reduced to the complex
Ginzburg-Landau equation near the Hopf bifurcation point of the uniform
solution. By numerical simulations, we show that the hole structure clearly
appears in the space-dependent order parameter, which corresponds to the
Nozaki-Bekki hole solution of the complex Ginzburg-Landau equation.
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Surveys of the Milky Way (MW) and M31 enable detailed studies of stellar
populations across ages and metallicities, with the goal of reconstructing
formation histories across cosmic time. These surveys motivate key questions
for galactic archaeology in a cosmological context: when did the main
progenitor of a MW/M31-mass galaxy form, and what were the galactic building
blocks that formed it? We investigate the formation times and progenitor
galaxies of MW/M31-mass galaxies using the FIRE-2 cosmological simulations,
including 6 isolated MW/M31-mass galaxies and 6 galaxies in Local Group
(LG)-like pairs at z = 0. We examine main progenitor "formation" based on two
metrics: (1) transition from primarily ex-situ to in-situ stellar mass growth
and (2) mass dominance compared to other progenitors. We find that the main
progenitor of a MW/M31-mass galaxy emerged typically at z ~ 3-4 (11.6-12.2 Gyr
ago), while stars in the bulge region (inner 2 kpc) at z = 0 formed primarily
in a single main progenitor at z < 5 (< 12.6 Gyr ago). Compared with isolated
hosts, the main progenitors of LG-like paired hosts emerged significantly
earlier (\Delta z ~ 2, \Delta t ~ 1.6 Gyr), with ~ 4x higher stellar mass at
all z > 4 (> 12.2 Gyr ago). This highlights the importance of environment in
MW/M31-mass galaxy formation, especially at early times. Overall, about 100
galaxies with M_star > 10^5 M_sun formed a typical MW/M31-mass system. Thus,
surviving satellites represent a highly incomplete census (by ~ 5x) of the
progenitor population.
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We present a numerical study of the collective dynamics in a population of
coupled excitable lasers with saturable absorber. At variance with previous
studies where real-valued (lossy) coupling was considered, we focus here on the
purely imaginary coupling (evanescent wave coupling). We show that evanescently
coupled excitable lasers synchronize in a more efficient way compared to the
lossy coupled ones. Furthermore we show that out-of-diagonal disorder-induced
localization of excitability takes place for imaginary coupling too, but it can
be frustrated by nonvanishing linewidth enhancement factor.
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Performing deep learning on end-user devices provides fast offline inference
results and can help protect the user's privacy. However, running models on
untrusted client devices reveals model information which may be proprietary,
i.e., the operating system or other applications on end-user devices may be
manipulated to copy and redistribute this information, infringing on the model
provider's intellectual property. We propose the use of ARM TrustZone, a
hardware-based security feature present in most phones, to confidentially run a
proprietary model on an untrusted end-user device. We explore the limitations
and design challenges of using TrustZone and examine potential approaches for
confidential deep learning within this environment. Of particular interest is
providing robust protection of proprietary model information while minimizing
total performance overhead.
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The Advanced Normalizations Tools ecosystem, known as ANTsX, consists of multiple open-source software libraries which house top-performing algorithms used worldwide by scientific and research communities for processing and analyzing biological and medical imaging data. The base software library, ANTs, is built upon, and contributes to, the NIH-sponsored Insight Toolkit. Founded in 2008 with the highly regarded Symmetric Normalization image registration framework, the ANTs library has since grown to include additional functionality. Recent enhancements include statistical, visualization, and deep learning capabilities through interfacing with both the R statistical project (ANTsR) and Python (ANTsPy). Additionally, the corresponding deep learning extensions ANTsRNet and ANTsPyNet (built on the popular TensorFlow/Keras libraries) contain several popular network architectures and trained models for specific applications. One such comprehensive application is a deep learning analog for generating cortical thickness data from structural T1-weighted brain MRI, both cross-sectionally and longitudinally. These pipelines significantly improve computational efficiency and provide comparable-to-superior accuracy over multiple criteria relative to the existing ANTs workflows and simultaneously illustrate the importance of the comprehensive ANTsX approach as a framework for medical image analysis.
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This white paper responds to the Voyage 2050 Call for White Papers from the
Science Programme of the European Space Agency (ESA) and argues that education,
communication and public engagement (hereafter EPE) should have priority in the
Voyage 2050 planning cycle. The ESA Science's Voyage 2050 missions promise
insights into the big existential questions of our era: the prevalence of life
in the Universe; the nature of space and time; and the intertwined nature of
matter, energy and gravity. It is likely that innovations in the acquisition,
handling and processing of vast data sets will drive these themes to scientific
maturity in the next decades. They offer us a timely opportunity to underline
the relevance of space sciences to everyday life and thinking. More generally,
space science is maturing to the point where it contributes to every major
aspect of our cultural discourse. Citizens need information, resources and
opportunities to actively participate in that discourse, and ESA Science can
provide these. This white paper is a modest attempt to support ESA Science
improve its engagement with society. It focuses on issues and topics to improve
ESA Science's Education and Public Engagement activities. It does not dwell on
the topics that ESA already excels at; hence this White Paper provides a
critical review of what should and could be improved. We believe ESA's Voyage
2050 programme teams have a responsibility to represent Europe's social and
cultural diversity, and our suggestions are conceived in that spirit: to
support ESA Science's complex task of engaging a hugely diverse audience in the
complex issues of planning, building and operating fascinating space missions.
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In this this paper the stochastic background of gravitational waves (SBGWs)
is analyzed with the auxilium of the WMAP data. We emphasize that, in general,
in previous works in the literature about the SBGWs, old COBE data were used.
After this, we want to face the problem of how the SBGWs and f(R) gravity can
be related, showing, vice versa, that a revealed SBGWs could be a powerly probe
for a given theory of gravity. In this way, it will also be shown that the
conformal treatment of SBGWs can be used to parametrize in a natural way f(R)
theories.
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To promote the benefits of the Internet of Things (IoT) in smart communities
and smart cities, a real-time data marketplace middleware platform, called the
Intelligent IoT Integrator (I3), has been recently proposed. While facilitating
the easy exchanges of real-time IoT data streams between device owners and
third-party applications through the marketplace, I3 is presently a monolithic,
centralized platform for a single community. Although the service oriented
architecture (SOA) has been widely adopted in the IoT and cyber-physical
systems (CPS), it is difficult for a monolithic architecture to provide
scalable, inter-operable and extensible services for large numbers of
distributed IoT devices and different application vendors. Traditional security
solutions rely on a centralized authority, which can be a performance
bottleneck or susceptible to a single point of failure. Inspired by
containerized microservices and blockchain technology, this paper proposed a
BLockchain-ENabled Secure Microservices for Decentralized Data Marketplaces
(BlendSM-DDM). Within a permissioned blockchain network, a microservices based
security mechanism is introduced to secure data exchange and payment among
participants in the marketplace. BlendSM-DDM is able to offer a decentralized,
scalable and auditable data exchanges for the data marketplace.
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The identification of dark matter in our particle physics model is still a
very open question. Here we will argue that axinos can be successful dark
matter candidates in models with supersymmetry and the axion solution of the
strong CP problem. Axinos can be the lightest supersymmetric particle (LSP), or
can be heavier than the LSP. Axinos can be produced in the right abundance by
thermal scatterings and if they are the LSP also by out of equilibrium decays
of the lightest superpartner of SM fields (LSPSMs). On the other hand heavier
(not LSP) axinos can generate a part of the neutralino LSP dark matter.
Depending on the nature of the supersymmetric spectrum, and if R-parity is
strictly conserved or slightly broken, very different signals of the LSP axino
scenario can arise at colliders and in astrophysics.
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SWAT across this nation are under trained thugs who think they are elite military. Any fool knows you never point a gun at a target until they are a threat and your finger never goes near the trigger until you are ready to fire. They had no right to detain the couple whatsoever. A lot and i mean a LOT of cops are going to find themselves burning in hell for being thugs and thieves who hide behind a badge to bully assault and steal with impunity. I have long since lost all respect for the police because even if you are "one of the good ones" you sit idle while the rest run roughshod over this country and steal from people daily.
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The second-order nonlinear optical susceptibility ($\chi_{abc}^{(2)}$) and
linear electro-optical coefficient ($r_{abc}$) of a large number of
single-walled zigzag, armchair and chiral SiC nanotubes (SiC-NTs) as well as
bulk SiC polytypes (2H-, 4H-, 6H- and 3C-SiC) and single graphitic SiC sheet
have been calculated from first-principles. The calculations are based on
density functional theory in the local density approximation and highly
accurate full-potential projector augmented-wave method is used. Both the
zigzag and chiral SiC-NTs are found to exhibit large second-order nonlinear
optical behavior with the $\chi_{abc}^{(2)}$ and $r_{abc}$ coefficients being
up to ten-times larger than that of bulk SiC polytypes, and also being up to
thirteen-times larger than the counterparts of the corresponding BN-NTs,
indicating that SiC-NTs are promising materials for nonlinear optical and
opto-electric applications. The prominant features in the spectra of
$\chi_{abc}^{(2)}(-2\omega,\omega,\omega)$ of the SiC-NTs are correlated with
the features in the linear optical dielectric function $\epsilon (\omega)$ in
terms of single-photon and two-photon resonances.
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This paper introduces a simple and fast variant of Planet Wars as a test-bed
for statistical planning based Game AI agents, and for noisy hyper-parameter
optimisation. Planet Wars is a real-time strategy game with simple rules but
complex game-play. The variant introduced in this paper is designed for speed
to enable efficient experimentation, and also for a fixed action space to
enable practical inter-operability with General Video Game AI agents. If we
treat the game as a win-loss game (which is standard), then this leads to
challenging noisy optimisation problems both in tuning agents to play the game,
and in tuning game parameters. Here we focus on the problem of tuning an agent,
and report results using the recently developed N-Tuple Bandit Evolutionary
Algorithm and a number of other optimisers, including Sequential Model-based
Algorithm Configuration (SMAC). Results indicate that the N-Tuple Bandit
Evolutionary offers competitive performance as well as insight into the effects
of combinations of parameter choices.
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Starting as highly relativistic collimated jets, gamma-ray burst outflows
gradually decelerate and become non-relativistic spherical blast waves.
Although detailed analytical solutions describing the afterglow emission
received by an on-axis observer during both the early and late phases of the
outflow evolution exist, a calculation of the received flux during the
intermediate phase and for an off-axis observer requires either a more
simplified analytical model or direct numerical simulations of the outflow
dynamics. In this paper we present light curves for off-axis observers covering
the long-term evolution of the blast wave calculated from a high resolution
two-dimensional relativistic hydrodynamics simulation using a synchrotron
radiation model. We compare our results to earlier analytical work and
calculate the consequence of the observer angle with respect to the jet axis
both for the detection of orphan afterglows and for jet break fits to the
observational data. We find that observable jet breaks can be delayed for up to
several weeks for off-axis observers, potentially leading to overestimation of
the beaming corrected total energy. When using our off-axis light curves to
create synthetic Swift X-ray data, we find that jet breaks are likely to remain
hidden in the data. We also confirm earlier results in the literature finding
that only a very small number of local Type Ibc supernovae can harbor an orphan
afterglow.
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Security has become one of the major issue in mobile services. In the
development of recent mobile devices like Software Defined Radio (SDR) secure
method of software downloading is found necessary for reconfiguration. Hash
functions are the important security primitives used for authentication and
data integrity. In this paper, VLSI architecture for implementation of
integrity unit in SDR is proposed. The proposed architecture is reconfigurable
in the sense it operates in two different modes: SHA-192 and MD-5.Due to
applied design technique the proposed architecture achieves multi-mode
operation, which keeps the allocated area resource at minimized level. The
proposed architecture also achieves highspeed performance with pipelined
designed structure. Comparison with related hash function implementation have
been done in terms of operating frequency, allocated-area and area-delay
product. The proposed Integrity Unity can be integrated in security systems for
implementation of network for wireless protocol, with special needs of
integrity in data transmission.
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Principal Component Analysis (PCA) is one of the most important methods to
handle high dimensional data. However, most of the studies on PCA aim to
minimize the loss after projection, which usually measures the Euclidean
distance, though in some fields, angle distance is known to be more important
and critical for analysis. In this paper, we propose a method by adding
constraints on factors to unify the Euclidean distance and angle distance.
However, due to the nonconvexity of the objective and constraints, the
optimized solution is not easy to obtain. We propose an alternating linearized
minimization method to solve it with provable convergence rate and guarantee.
Experiments on synthetic data and real-world datasets have validated the
effectiveness of our method and demonstrated its advantages over state-of-art
clustering methods.
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The optimal function $f$ satisfying
$$
\mathbb{E} |\sum_{1}^n X_i |
\ge f(\mathrbb{E}|X_1|,...,\mathbb{E}|X_n|)
$$ for every martingale $(X_1,X_1+X_2, ...,\sum_{i=1}^n X_i)$ is shown to be
given by $$ f(a) = \max \Big\{a_k-\sum_{i=1}^{k-1} a_i\Big\}_{k=1}^n \cup
\Big\{\frac {a_k}2\Big\}_{k=3}^n $$ for $a\in{[0,\infty[}^n_{}$. A similar
result is obtained for submartingales $(0,X_1,X_1+X_2,..., \sum_{i=1}^n X_i)$.
The optimality proofs use a convex-analytic comparison lemma of independent
interest.
|
We prove a conjecture of Kollar and Larsen on Zariski closed subgroups of
$GL(V)$ which act irreducibly on some symmetric power $Sym^{k}(V)$ with $k \geq
4$. This conjecture has interesting implications, in particular on the holonomy
group of a stable vector bundle on a smooth projective variety, as shown by the
recent work of Balaji and Kollar.
|
Let $Q(n,k)$ be the number of $n$-ary quasigroups of order $k$. We derive a
recurrent formula for Q(n,4). We prove that for all $n\geq 2$ and $k\geq 5$ the
following inequalities hold: $({k-3}/2)^{n/2}(\frac{k-1}2)^{n/2} < log_2 Q(n,k)
\leq {c_k(k-2)^{n}} $, where $c_k$ does not depend on $n$. So, the upper
asymptotic bound for $Q(n,k)$ is improved for any $k\geq 5$ and the lower bound
is improved for odd $k\geq 7$. Keywords: n-ary quasigroup, latin cube, loop,
asymptotic estimate, component, latin trade.
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Robust model predictive control (MPC) is a well-known control technique for
model-based control with constraints and uncertainties. In classic robust
tube-based MPC approaches, an open-loop control sequence is computed via
periodically solving an online nominal MPC problem, which requires prior model
information and frequent access to onboard computational resources. In this
paper, we propose an efficient robust MPC solution based on receding horizon
reinforcement learning, called r-LPC, for unknown nonlinear systems with state
constraints and disturbances. The proposed r-LPC utilizes a Koopman
operator-based prediction model obtained off-line from pre-collected
input-output datasets. Unlike classic tube-based MPC, in each prediction time
interval of r-LPC, we use an actor-critic structure to learn a near-optimal
feedback control policy rather than a control sequence. The resulting
closed-loop control policy can be learned off-line and deployed online or
learned online in an asynchronous way. In the latter case, online learning can
be activated whenever necessary; for instance, the safety constraint is
violated with the deployed policy. The closed-loop recursive feasibility,
robustness, and asymptotic stability are proven under function approximation
errors of the actor-critic networks. Simulation and experimental results on two
nonlinear systems with unknown dynamics and disturbances have demonstrated that
our approach has better or comparable performance when compared with tube-based
MPC and LQR, and outperforms a recently developed actor-critic learning
approach.
|
We address the problem of predicting the leading political ideology, i.e.,
left-center-right bias, for YouTube channels of news media. Previous work on
the problem has focused exclusively on text and on analysis of the language
used, topics discussed, sentiment, and the like. In contrast, here we study
videos, which yields an interesting multimodal setup. Starting with gold
annotations about the leading political ideology of major world news media from
Media Bias/Fact Check, we searched on YouTube to find their corresponding
channels, and we downloaded a recent sample of videos from each channel. We
crawled more than 1,000 YouTube hours along with the corresponding subtitles
and metadata, thus producing a new multimodal dataset. We further developed a
multimodal deep-learning architecture for the task. Our analysis shows that the
use of acoustic signal helped to improve bias detection by more than 6%
absolute over using text and metadata only. We release the dataset to the
research community, hoping to help advance the field of multi-modal political
bias detection.
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We investigate how the presence of RR magnetic $F_{p+2}$ fluxes affects the
energy of classical Dp branes, for specific string theory supersymmetric
backgrounds which are solutions to the leading order in $\alpha'$ including
back-reaction effects. The Dp brane dynamics is found to be similar to the well
known dynamics of particles and strings moving in magnetic fields. We find a
class of BPS solutions which generalize the BPS fundamental strings or BPS
branes with momentum and winding to the case of non-zero magnetic fields.
Remarkably, the interaction with the magnetic fields does not spoil the
supersymmetry of the solution, which turns out to be invariant under four
supersymmetry transformations. We find that magnetic fields can significantly
reduce the energy of some BPS strings and Dp branes, in particular, some
macroscopic Dp branes become light for sufficiently large magnetic fields.
|
"An album of songs so old everyone thinks they're new." This film has the elusive combination of pace and mood that set some films apart from the opening moments. And why not? Towering talent from Dame Judith Dench as a widow who plays saxaphone with a street musician to help him get the songs right, to Olympia Dukakis as the merry widow living in a Scottish castle on the alimony of her many marriages, to Ian Holm as the drummer who loved all the members of a World War II all girl (more or less) swing band. But wait, there's more. Add in Leslie Caron on bass, and the incomparable Clio Laine on lead vocal, at last, and the Blonde Bombshells are the hottest band in England since the Beatles. Well, OK, not really, but this movie is a winner.<br /><br />Elizabeth (Dench) spends the whole film trying to reunite the Blonde Bombshells to play at her granddaughter's school dance. And before you roll your eyes, imagine how difficult and courageous it would be for a bunch of sexegenarian women to step onstage in front of the Britney Spears generation following an act called "Open Wound."<br /><br />In an age when actresses careers are over by the time they're 30, most bands' second album is a greatest hits compilation, and music more than a month old has almost no chance of airplay, it's great to see real talent, real music and a really good movie come from, where else, the BBC.<br /><br />I love this movie, and I know I'll watch it many more times, and enjoy it more each time.
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Distinguished Leather Collar
this is a quality piece of leather, and beautiful color- just what we were looking for our tri-color corgi- and at an affordable price. At 5 months old it fits him perfectly on the last hole (size medium), and we cannot wait for the leather to soften and distress more with wear. If you are handy with leather, you could easily use a punch to make a new hole for sizing if needed, or even add a brass nameplate. I am a horse owner, and shopped around for a leather collar with big-name brands- but this was the best find!
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The Dzyaloshinskii Moriya Interaction (DMI) has laid the foundation for many
novel chiral structures such as Skyrmions. In most of the studies so far, the
DMI is present in the whole of the magnetic layer. Here, we report our
investigations on a ferromagnetic nanowire where DMI is confined to a nanoscale
region. We observe that the local modulation of magnetic properties causes
oscillation of domain walls under the influence of spin-transfer torque. The
oscillation frequency is tunable within a few GHz, making this observation
potentially useful for applications in neuromorphic computing.
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"The Tenant" is Roman Polanski's greatest film IMO. And I love "Chinatown", but this one is so much more original and unconventional and downright creepy. It's also a great black comedy. Some people I have shown this film to have been *very disturbed* by it afterwards so be forewarned it does affect some people that way. Polanski does a great job acting the lead role in "The Tenant" as well as directing it.
|
We elucidate the nature of neutral collective excitations of fractional
quantum Hall liquids in the long-wavelength limit. We demonstrate that they are
chiral gravitons carrying angular momentum - 2, which are quanta of quantum
motion of an internal metric, and show up as resonance peaks in the systems
response to what is the fractional Hall analog of gravitational waves. Relation
with existing and possible future experimental work that can detect these
fractional quantum Hall gravitons and reveal their chirality are discussed.
|
We investigate the interplay dynamics of a cavity qed system, where the
two-level atoms are trapped in a double-well potential, and the cavity mode,
with a frequency largely detuned to the atomic level splitting, is driven by a
probe laser. The interaction between the center-of-mass motion of the atoms and
the cavity mode is induced by the position dependent atom-field coupling. The
dynamics of the system is characterized by two distinct time scales, the
inverse of the atomic interwell tunneling rate and the inverse of the cavity
loss rate. The system shows drastically different (quasi) steady behaviors in
the short-time and long-time intervals.
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Let's see what you left out of Canon 212:
Can. 212 §1. Conscious of their own responsibility, the Christian faithful are BOUND TO FOLLOW WITH CHRISTIAN OBEDIENCE those things which the sacred pastors, inasmuch as they represent Christ, declare as teachers of the faith or establish as rulers of the Church.
They have a right to make their statements. They did this two years ago. Their pastor and bishop did not see it their way. There is a canonical procedure they can follow, although with the picayune complaints I cannot imagine them getting what they apparently wish.
Can. 223 §1. In exercising their rights, the Christian faithful, both as individuals and gathered together in associations, must take into account the COMMON GOOD OF THE CHURCH, the RIGHTS OF OTHERS, and THEIR OWN DUTIES TOWARD OTHERS.
Roman Catholic Women Priests is not Roman, is not Catholic, nor Catholic priests. All participants in their ordinations have been excommunicated.
F.
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In this letter we consider resource allocation for OFDMA-based secure
cooperative communication by employing a trusted Decode and Forward (DF) relay
among the untrusted users. We formulate two optimization problems, namely, (i)
sum rate maximization subject to individual power constraints on source and
relay, and (ii) sum power minimization subject to a fairness constraint in
terms of per-user minimum support secure rate requirement. The optimization
problems are solved utilizing the optimality of KKT conditions for pseudolinear
functions.
|
Awful
I am a school teacher and I go through tons of pencils in my classroom every year. The lead was not in the center so when you sharpen them the wood comes all the way out on one side so unless you whittle them with a knife they are worthless.
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The role of cooperative effects (i.e. synergy) in transmission of infection
is investigated analytically and numerically for epidemics following the rules
of Susceptible-Infected-Susceptible (SIS) model defined on random regular
graphs. Non-linear dynamics are shown to lead to bifurcation diagrams for such
spreading phenomena exhibiting three distinct regimes: non-active, active and
bi-stable. The dependence of bifurcation loci on node degree is studied and
interesting effects are found that contrast with the behaviour expected for
non-synergistic epidemics.
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where President Donald Trump’s reluctance to fight climate change cast a shadow over talks."" that is bias opinion bs trying to hide as news, well trump is not reluctant,, he wont and understands taxing us to dealth like justing is doing will harm the economy while doing nothing for the environment!! , so the only shadow would be any nut jobs that think we should tax that would be there!
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this was one of the funniest and informative shows that I have ever seen. This is a MUST see for anyone over the age of 16. this show had me and my 2 boys laughing out loud from the beginning. I don't know if everything on the show was true but the way it was presented left little doubt that Mr Wuhl was not only very knowledgeable but he also had a blast presenting this information to the very lucky college kids who were in attendance. If Mr Wuhl ever decides to do this format again they will have to rent a building the size of the Georgia Dome to hold all the people who will want to see it. I agree with the idea of making this a HBO series. It would have an amazing following
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Using light-induced localized surface plasmon interactions in a metamaterial,
we present a plasmonic control of light absorption for photonic switching. We
discuss that the present surface plasmon-induced photonic switching is
comparable with coherence swapping in a tripod optical system based on
electromagnetically induced transparency. This outcome opens a door to active
controls of the surface plasmons in a metamaterial for potential applications
of nano photonics.
|
A possible slowing down of the cosmic expansion is investigated through a
cosmographic approach. By expanding the luminosity distance to fourth order and
fitting the SN Ia data from the most recent compilations (Union, Constitution
and Union 2), the marginal likelihood distributions for the deceleration
parameter today suggest a recent reduction of the cosmic acceleration and
indicate that there is a considerable probability for $q_0>0$. Also in contrast
to the prediction of the $\Lambda$CDM model, the cosmographic $q(z)$
reconstruction permits a cosmic expansion history where the cosmic acceleration
could already have peaked and be presently slowing down, which would imply that
the recent accelerated expansion of the Universe is a transient phenomenon. It
is also shown that to describe a transient acceleration the luminosity distance
needs to be expanded at least to fourth order. The present cosmographic results
depend neither on the validity of general relativity nor on the matter-energy
contents of the Universe.
|
We describe the current status of CATS, a publicly accessible database
(web-server http://cats.sao.ru) allowing one to search in hundreds of catalogs
of astronomical objects discovered all along the electromagnetic spectrum. Our
emphasis is mainly laid on catalogs of radio continuum sources observed from 30
to 15000 MHz, secondly on catalogs of objects such as radio and active stars,
planetary nebulae, HII regions, supernova remnants (SNR), pulsars, nearby
galaxies, AGN and quasars. CATS also includes the catalogs from the largest
extragalactic surveys, like NVSS, FIRST, WENSS, VLSS, TXS, GB6, SUMSS, IRAS,
2MASS, SDSS, ROSAT, PGC, MCG, etc. In 2004 CATS comprised a total of $\sim10^9$
records from over 400 catalogs in the radio, IR, optical and X-ray windows,
including most of RATAN--600 catalogs. CATS is being expanded and updated, both
with newly published catalogs as well as older ones which we have created in
electronic form for the first time. We describe the principles of organization
of the database of astrophysical catalogs and the main functions of CATS.
|
The $f(R,T)$ gravity field equations depend generically on both the Ricci
scalar $R$ and trace of the energy-momentum tensor $T$. Within the assumption
of perfect fluids, the theory carries an arbitrariness regarding the choice of
the matter lagrangian density $\mathcal{L}$, not uniquely defined. Such an
arbitrariness can be evaded by working with the trace of the theory field
equations. From such an equation, one can obtain a form for $\mathcal{L}$,
which does not carry the arbitrariness. The obtained form for $\mathcal{L}$
shows that the $f(R,T)$ gravity is unimodular. A new version of the theory is,
therefore, presented and forthcoming applications are expected.
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The concept of causal nonseparability has been recently introduced, in
opposition to that of causal separability, to qualify physical processes that
locally abide by the laws of quantum theory, but cannot be embedded in a
well-defined global causal structure. While the definition is unambiguous in
the bipartite case, its generalisation to the multipartite case is not so
straightforward. Two seemingly different generalisations have been proposed,
one for a restricted tripartite scenario and one for the general multipartite
case. Here we compare the two, showing that they are in fact inequivalent. We
propose our own definition of causal (non)separability for the general case,
which---although a priori subtly different---turns out to be equivalent to the
concept of "extensible causal (non)separability" introduced before, and which
we argue is a more natural definition for general multipartite scenarios. We
then derive necessary, as well as sufficient conditions to characterise
causally (non)separable processes in practice. These allow one to devise
practical tests, by generalising the tool of witnesses of causal
nonseparability.
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With Adam Sandler.<br /><br />This is without a doubt one of the most idiotic films ever made. It's about cruise ship waiter Shecky (Sandler) wanting to be a comedian on the cruise ship. First off, there is not one funny or clever line in the entire movie honestly. It is so unfunny it's pathetic. There is surprisingly not much crude or sexual humor, but the f-word is plentiful. The budget is really low, and that also ruins the film. It takes place on a cruise ship, but it seems they only had money to rent out a small boat and only had money for 10 ship extras, one of which is Billy Bob Thornton. The opening credits are animated reeeeeaally cheaply, and it is just pathetic. I hate this movie and everyone else that sees this will hate it too.<br /><br />86 mins. rated R for Language.
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We address the Nash equilibrium problem in a partial-decision information
scenario, where each agent can only observe the actions of some neighbors,
while its cost possibly depends on the strategies of other agents. Our main
contribution is the design of a fully-distributed, single-layer, fixed-step
algorithm, based on a proximal best-response augmented with consensus terms. To
derive our algorithm, we follow an operator-theoretic approach. First, we
recast the Nash equilibrium problem as that of finding a zero of a monotone
operator. Then, we demonstrate that the resulting inclusion can be solved in a
fully-distributed way via a proximal-point method, thanks to the use of a novel
preconditioning matrix. Under strong monotonicity and Lipschitz continuity of
the game mapping, We prove linear convergence of our algorithm to a Nash
equilibrium. Furthermore, we show that our method outperforms the fastest known
gradient-based schemes, both in terms of guaranteed convergence rate, via
theoretical analysis, and in practice, via numerical simulations.
|
In 2018, Kahle and Stump raised the following problem: identify sequences of
finite Coxeter groups $W_n$ for which the two-sided descent statistics on a
uniform random element of $W_n$ is asymptotically normal. Recently, Br\"uck and
R\"ottger provided an almost-complete answer, assuming some regularity
condition on the sequence $W_n$. In this note, we provide a shorter proof of
their result, which does not require any regularity condition. The main new
proof ingredient is the use of the second Wasserstein distance on probability
distributions, based on the work of Mallows (1972).
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The consistency relation for the 3-point function of the CMB is a very
powerful observational signature which is believed to be true for every
inflationary model in which there is only one dynamical degree of freedom. Its
importance relies on the fact that deviations from it might be detected in next
generation experiments, allowing us to rule out all single field inflationary
models. After making more precise the already existing proof of the consistency
relation, we use a recently developed effective field theory for inflationary
perturbations to provide an alternative and very explicit proof valid at
leading non trivial order in slow roll parameters.
|
Irregular boundary lines can be characterized by fractal dimension, which
provides important information for spatial analysis of complex geographical
phenomena such as cities. However, it is difficult to calculate fractal
dimension of boundaries systematically when image data is limited. An
approximation estimation formulae of boundary dimension based on square is
widely applied in urban and ecological studies. However, the boundary dimension
is sometimes overestimated. This paper is devoted to developing a series of
practicable formulae for boundary dimension estimation using ideas from
fractals. A number of regular figures are employed as reference shapes, from
which the corresponding geometric measure relations are constructed; from these
measure relations, two sets of fractal dimension estimation formulae are
derived for describing fractal-like boundaries. Correspondingly, a group of
shape indexes can be defined. A finding is that different formulae have
different merits and spheres of application, and the second set of boundary
dimensions is a function of the shape indexes. Under condition of data
shortage, these formulae can be utilized to estimate boundary dimension values
rapidly. Moreover, the relationships between boundary dimension and shape
indexes are instructive to understand the association and differences between
characteristic scales and scaling. The formulae may be useful for the
pre-fractal studies in geography, geomorphology, ecology, landscape science,
and especially, urban science.
|
In this work we use genetic algorithm to search for the gravitational wave
signal from the inspiralling massive Black Hole binaries in the simulated LISA
data. We consider a single signal in the Gaussian instrumental noise. This is a
first step in preparation for analysis of the third round of the mock LISA data
challenge. We have extended a genetic algorithm utilizing the properties of the
signal and the detector response function. The performance of this method is
comparable, if not better, to already existing algorithms.
|
We study the moduli spaces of polarised irreducible symplectic manifolds. By
a comparison with locally symmetric varieties of orthogonal type of dimension
20, we show that the moduli space of 2d polarised (split type) symplectic
manifolds which are deformation equivalent to degree 2 Hilbert schemes of a K3
surface is of general type if d is at least 12.
|
Thermal transistor is an efficient heat control device which can act as a
heat switch as well as a heat modulator. In this paper, we study systematically
one-dimensional and two-dimensional thermal transistors. In particular, we show
how to improve significantly the efficiency of the one-dimensional thermal
transistor. The study is also extended to the design of two-dimensional thermal
transistor by coupling different anharmonic lattices such as the
Frenkel-Kontorova and the Fermi-Pasta-Ulam lattices. Analogy between anharmonic
lattices and single-walled carbon nanotube is drawn and possible experimental
realization with multi-walled nanotube is suggested.
|
The millisecond pulsar PSR J1740-5340 in the globular cluster NGC 6397 shows
radio eclipses over ~40% of its binary orbit. A first Chandra observation
revealed indications for the X-ray flux being orbit dependent as well. In this
work we analysed five data sets of archival Chandra data taken between 2000 and
2007 in order to investigate the emission across the pulsar's binary orbit.
Utilizing archival Chandra observations of PSR J1740-5340, we have performed a
systematic timing and spectral analysis of this binary system. Using a
chi-square-test the significance for intra-binary orbital modulation is found
to be between 88.5% and 99.6%, depending on the number of phase bins used to
construct the light curve. Applying the unbiased statistical Kolmogorov-Smirnov
(KS) test did not indicate any significant intra-binary orbital modulation,
though. However, comparing the counting rates observed at different epochs a
flux variability on times scales of days to years is indicated. The possible
origin of the X-ray emission is discussed in a number of different scenarios.
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Topples over when not in use
We love this unit when it is open. It glides easily over the carpet and is relatively sturdy. The gray color is handsome and blends into our decor perfectly. However, we don’t use it 24/7 and bought it so the top could be unhooked to hang down and the legs could be slid into the end of the couch so it could disappear when not in use. The problem? The unit won’t stay balanced and topples over. :( In the first photo I’ve enclosed, the unit won’t stay in that position without my foot holding it. If I take my foot off, photo two happens, which is loud and jarring and not at all helpful. It stores poorly in the fallen over position.......
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Deep learning models continuously break new records across different NLP
tasks. At the same time, their success exposes weaknesses of model evaluation.
Here, we compile several key pitfalls of evaluation of sentence embeddings, a
currently very popular NLP paradigm. These pitfalls include the comparison of
embeddings of different sizes, normalization of embeddings, and the low (and
diverging) correlations between transfer and probing tasks. Our motivation is
to challenge the current evaluation of sentence embeddings and to provide an
easy-to-access reference for future research. Based on our insights, we also
recommend better practices for better future evaluations of sentence
embeddings.
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We find that the current radiative energy loss kernels obtained from the
opacity expansion dramatically violate the collinear approximation used in
their derivation. By keeping only the lowest order in collinearity terms,
models based on the opacity expansion have ~50% systematic uncertainty in the
calculation of pi^0 R_AA in 0-5% most central RHIC collisions resulting in a
systematic uncertainty of ~200% in the extracted medium density. Surprisingly,
the inclusion of a thermal gluon mass on the order of the Debye screening scale
affects R_AA at only about the 5% level due to non-intuitive coherence effects.
For some observables such as R_AA, the effect of these uncertainties decreases
with increasing jet energy; for others, such as the average number of radiated
gluons, the effect is energy independent. We note that it is likely that the
differences reported in the extracted values of medium parameters such as qhat
by various jet energy loss models will fall within this collinear approximation
systematic uncertainty; it is imperative for the quantitative extraction of
medium parameters or the possible falsification of the hypothesis of weak
coupling between the hard probes and soft modes of the quark gluon plasma
medium that future radiative energy loss research push beyond the lowest order
collinear approximation.
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great for the price
these sheets are soft, beautiful color. The only thing I had a problem with, one of the pillowcases has a messed up pillow case, the seam came apart, or it may have been apart when I got them, I unpacked them and tossed them in the washing machine, when I took them out of the dryer one seam was no longer a seam. They feel great, they are a great value for the price.
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Two-season limited event series “The Walking Dead: World Beyond” had been set to premiere April 12th on AMC, but we’ve learned this week that the premiere has been delayed.
The new spinoff series, which tells the story of the first generation to come-of-age in the apocalypse, will now be arriving on AMC “later this year.” We have no new date at this time.
According to Deadline, the series “had wrapped filming but was in post-production on the last few episodes, which has been impacted by the COVID-19-related company closures.”
Filming on “The Walking Dead” and “Fear the Walking Dead” is also on hold.
In “World Beyond”…
“Some will become heroes. Some will become villains. In the end, all of them will be changed forever. Grown-up and cemented in their identities, good & bad.”
“Two sisters along with two friends leave a place of safety and comfort to brave dangers, known and unknown, living and undead on an important quest. Pursued by those who wish to protect them and those who wish to harm them, a tale of growing up and transformation unfurls across dangerous terrain, challenging everything they know about the world, themselves and each other.”
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"Caligula" shares many of the same attributes as the 1970 "Fellini Satyricon" with bizarre sights, freakishness, and depictions of sexual excesses all set in the "glory" of ancient Rome. But Fellini it ain't... First of all it is not as entertaining. Far too much screen time is devoted to bug-eyed, rubber-faced McDowell in the titular role. His performance is far too fey and campy to be convincing. The portrayals by Jay Robinson in "The Robe" (1953) and David Cain-Haughton in "Emperor Caligula" (1983) are far more persuasive and believable, with the latter being the most nuanced. Relief could have been judiciously provided by developing the surrounding characters more fully. As it is, they are little more than cyphers. One example is the role of Macro, played by Guido Mannari who has tremendous screen presence in an important role, but is mostly left in the background. The only positive features to credit are the adroit use of some Prokofiev and Stravinsky themes in the music score and the inclusion of some of the distasteful but nevertheless accurate actions of the despot. These two factors are far less than what is needed to relieve the prevailing tedium, however.
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With the development of research on memristor, memristive neural networks
(MNNs) have become a hot research topic recently. Because memristor can mimic
the spike timing-dependent plasticity (STDP), the research on STDP based MNNs
is rapidly increasing. However, although state-of-the-art works on STDP based
MNNs have many applications such as pattern recognition, STDP mechanism brings
relatively complex hardware framework and low processing speed, which block
MNNs' hardware realization. A non-STDP based unsupervised MNN is constructed in
this paper. Through the comparison with STDP method on the basis of two common
structures including feedforward and crossbar, non-STDP based MNNs not only
remain the same advantages as STDP based MNNs including high accuracy and
convergence speed in pattern recognition, but also better hardware performance
as few hardware resources and higher processing speed. By virtue of the
combination of memristive character and simple mechanism, non-STDP based MNNs
have better hardware compatibility, which may give a new viewpoint for
memristive neural networks' engineering applications.
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We analyze the Bose-Hubbard model with a three-body hardcore constraint by
mapping the system to a theory of two coupled bosonic degrees of freedom. We
find striking features that could be observable in experiments, including a
quantum Ising critical point on the transition from atomic to dimer
superfluidity at unit filling, and a continuous supersolid phase for strongly
bound dimers.
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By a result of John Ball (1981), a locally orientation preserving Sobolev map
is almost everywhere globally invertible whenever its boundary values admit a
homeomorphic extension. As shown here for any dimension, the conclusions of
Ball's theorem and related results can be reached while completely avoiding the
problem of homeomorphic extension. For suitable domains, it is enough to know
that the trace is invertible on the boundary or can be uniformly approximated
by such maps. An application in Nonlinear Elasticity is the existence of
homeomorphic minimizers with finite distortion whose boundary values are not
fixed. As a tool in the proofs, strictly orientation-preserving maps and their
global invertibility properties are studied from a purely topological point of
view.
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ELEPHANT WALK was a thoroughly dull film and I really was quite happy when finally a herd of elephants stormed through the mansion and ended this film. Considering the money and cast, you'd sure expect the film to be a lot better, though I also question the odd casting of Dana Andrews as a man who is in love with Elizabeth Taylor. It's not just the age difference but I just can't see the pair as a couple. Perhaps some of this may be the fault of substituting Miss Taylor for Vivian Leigh at the last minute (due to Miss Leigh's deteriorating mental condition)--though I also have a hard time visualizing Andrews and Leigh as well. In addition, for an English woman, Miss Taylor doesn't even seem to try using an accent.<br /><br />The film begins with Peter Finch and Taylor meeting and marrying in England. Their plan is to return to Finch's tea plantation in Ceylon (Sri Lanka) and at first it seems like a good life. However, there are no women to talk with and the household staff seem to resent her. On top of that, once back home, Finch behaves like a boorish jerk and Taylor is miserable. Neighbor Andrews can see this and he declares his undying passion for her. However, Taylor isn't yet ready to abandon her marriage. But, through the course of the film Finch treats Liz more and more like an object and finally she is ready to leave...when out of the blue, Cholera strikes the plantation. So it's up to Andrews, Finch and Taylor to work together to save the day--though by this point I really didn't care, as there is absolutely no chemistry between the characters, the dialog is pretty dull and you can't understand why Taylor didn't leave her weasel husband within days of arriving in this inhospitable hell.<br /><br />The film isn't particularly engaging or convincing and despite a decent budget by Paramount, the film is a sluggish mess. I particularly was surprised that although the film appeared to be filmed on location, many scenes were clearly filmed in a studio with a rear projected (and grainy) shot that wasn't integrated well. In one scene, for instance, Taylor, Finch and the lot are sitting on the veranda and the grass is bright green. Then, when the picture cuts to people dancing right in front of them, the grass is brown! It's clear they really are NOT in Ceylon in this scene or the scene with the giant reclining Buddha. My advice is to skip this one or at least keep a pot of coffee nearby to keep you awake. Despite its budget, it's just not a very good or inspired film.<br /><br />By the way, could Miss Taylor have been pregnant during part of this film? In some scenes (particularly at the beginning) she's wearing billowy clothes, has a double-chin and looks puffy. This isn't a criticism--after all, women do get pregnant! But if you look carefully, you'll see what I mean.<br /><br />Also by the way, the basic plot in many ways is similar to GIANT--a great Taylor film indeed! It's amazing how casting and decent direction can do so much.
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Only half sci-fi
Well, I wanted to like this book and I tried hard. Almost put it down a couple times. It's got a good dose of fantasy that I didn't enjoy. The story jumps around a lot and is difficult to follow. Reread several chapters trying to figure out what was going on. Character names were confusing. My apology but not my cup of tea.
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Cute but not sturdy.
Before the leg broke, this chair was pretty comfortable and functional. But at about the seven month mark, the leg snapped with little warning. To its credit, it's stable enough for use until it's replaced. Be warned if you will be using it frequently, on carpet, or if you're heavier.
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Grand Unification of all forces has been a well motivated paradigm for
particle physics. This subject has been recently revisited in the context of
string theory, leading to a geometric reformulation of the idea of unification
of forces. The interplay between geometry and physics has led to a natural
resolution to a number of puzzles of particle physics utilizing the geometry of
extra dimensions of string theory. Here we review aspects of these developments
for a mathematical audience (based on talks given in honor of Yau's 60th,
Atiyah's 80th and Singer's 85th birthdays).
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After all these years of solving crimes, you would've expected criminals to know that they can't afford making mistakes with him, especially not with regards to talking much. This time<br /><br />Columbo goes to college, and actually explains his entire technique, but for some reason the murderer still doesn't pay enough attention. However, this still creates wonderful scenes and delightful dialogues.
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Jim Wynorski strikes again with the very literal minded KOMODO VS. COBRA. No guesswork here. A giant CGI komodo dragon -- it sort of looks like a dog minus fur -- takes on a humongous CGI king cobra, with a bunch of tree huggers and others caught in between. The tree huggers get charter boat captain Michael Pare (who else?) to take them to an off-limits federal island. An experiment by a mad scientist in growing very large veggies has become an experiment in growing very large critters, thank so to our nutty military. Now all that's left on the island are the very large critters and the mad scientist's tiny, shapely daughter. The group runs into her at the old plantation lab, the monsters arrive, and the chase is on. If you watch enough Wynorski/Sci-Fi Channel flicks, you'll recognize some of the sets and locations from many other movies. Acting is nonexistent, as is the plot. At the very least, you can enjoy watching the badly animated compo/dog stomp down on its intended victims just before scarfing them up. The cobra just strikes and swallows. No imagination at all.
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We calculate the magnetoconductivity of the Weyl semimetal with
$\mathbb{Z}_2$ symmetry and chiral anomaly utilizing the recently developed
hydrodynamic theory. The system in question will be influenced by magnetic
fields connected with ordinary Maxwell and the second $U(1)$-gauge field, which
is responsible for anomalous topological charge. The presence of chiral anomaly
and $\mathbb{Z}_2$ anomalous charge endow the system with new transport
coefficients. We start with the linear perturbations of the hydrodynamic
equations and calculate the magnetoconductivity of this system. The holographic
approach in the probe limit is implemented to obtain the explicit dependence of
the longitudinal magnetoconductivities on the magnetic fields.
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By measuring the Josephson emission of a diffusive Superconductor-Normal
metal-Superconductor (SNS) junction at a finite temperature we reveal a
non-trivial sensitivity of the supercurrent to microwave irradiation. We
demonstrate that the harmonic content of the current-phase relation is modified
due to the energy redistribution of quasiparticles in the normal wire induced
by the electromagnetic field. The distortion originates from the
phase-dependent out-of-equilibrium distribution function which is strongly
affected by the ac-response of the spectral supercurrent. For phases close to
$\pi$, transitions accross the Andreev gap are dynamically favored leading to a
supercurrent reduction. This finding is supported by a comparison with the
quasiclassical Green's function theory of superconductivity in diffusive SNS
junctions under microwave irradiation.
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Given the ground state wavefunction for an interacting lattice model, we
define a "correlation density matrix"(CDM) for two disjoint, separated clusters
$A$ and $B$, to be the density matrix of their union, minus the direct product
of their respective density matrices. The CDM can be decomposed systematically
by a numerical singular value decomposition, to provide a systematic and
unbiased way to identify the operator(s) dominating the correlations, even
unexpected ones.
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Deep learning techniques have become the method of choice for researchers
working on algorithmic aspects of recommender systems. With the strongly
increased interest in machine learning in general, it has, as a result, become
difficult to keep track of what represents the state-of-the-art at the moment,
e.g., for top-n recommendation tasks. At the same time, several recent
publications point out problems in today's research practice in applied machine
learning, e.g., in terms of the reproducibility of the results or the choice of
the baselines when proposing new models. In this work, we report the results of
a systematic analysis of algorithmic proposals for top-n recommendation tasks.
Specifically, we considered 18 algorithms that were presented at top-level
research conferences in the last years. Only 7 of them could be reproduced with
reasonable effort. For these methods, it however turned out that 6 of them can
often be outperformed with comparably simple heuristic methods, e.g., based on
nearest-neighbor or graph-based techniques. The remaining one clearly
outperformed the baselines but did not consistently outperform a well-tuned
non-neural linear ranking method. Overall, our work sheds light on a number of
potential problems in today's machine learning scholarship and calls for
improved scientific practices in this area. Source code of our experiments and
full results are available at:
https://github.com/MaurizioFD/RecSys2019_DeepLearning_Evaluation.
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Poor advice, Mr. Carrick: a bean counter's perspective, and people are not beans. Becoming educated cannot be equated with seeking a job. A student should do a program in which he or she is interested, and even more or less passionate about. Parents who tell their children otherwise risk bad results at university, drug-taking, depression, and dropping out. How could that be a good investment? I'm a university professor with 30 years experience, and I've seen all this many, many times. Like the student whose parents forced him into law school and he became an alcoholic and dropped out after the first year. (Which ended his alcoholism.) The route to a rewarding and satisfying career is often not a straight or direct line. I've seen that many times too. People need to be given space and time to develop in accord with their actual natures and interests.
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The ability to accurately quantify the performance an additively manufactured
(AM) product is important for a widespread industry adoption of AM as the
design is required to: (1) satisfy geometrical constraints, (2) satisfy
structural constraints dictated by its intended function, and (3) be cost
effective compared to traditional manufacturing methods. Optimization
techniques offer design aids in creating cost-effective structures that meet
the prescribed structural objectives. The fundamental problem in existing
approaches lies in the difficulty to quantify the structural performance as
each unique design leads to a new set of analyses to determine the structural
robustness and such analyses can be very costly due to the complexity of in-use
forces experienced by the structure. This work develops computationally
tractable methods tailored to maximize the structural performance of AM
products. A geometry preserving build orientation optimization method as well
as data-driven shape optimization approaches to structural design are
presented. Proposed methods greatly enhance the value of AM technology by
taking advantage of the design space enabled by it for a broad class of
problems involving complex in-use loads.
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The reflected light signal from a planet throughout its orbit is a powerful
probe of a planet's atmospheric properties. There are a number of planets that
are amenable to reflected light phase curve studies with present and future
space-based instrumentation and here we assess our ability to characterize
these worlds. Using simulated TESS populations we identify the Nine, a set of
archetypal exoplanets with the potential to be bright in reflected light,
because of their radii and proximity to their star, while still being cool
enough to have minimal thermal contamination at optical wavelengths. For each
planet we compute albedo spectra for several cloud and atmosphere assumptions
(e.g. thermochemical equilibrium, solar composition). We find that in the TESS
bandpass the estimated contrast at optical wavelengths is typically <10 ppm
except for the brightest, largest, or closest in planets with the highest
lofted clouds where contrast can reach a few tens of ppm. Meanwhile, in a bluer
bandpass (0.3--0.5 microns) the estimated contrast can be as high as 150 ppm
but typically 10-50 ppm. In the temperature range of interest, planets with the
highest, most extensive cloud decks are generally darker at bluer wavelengths
than cloudless planets because of the low single scattering albedos of their
primary condensate constituents. Our models suggest that Neptune-sized planets
with relatively low insolation and small semi-major axes are the most conducive
to reflected light phase curve studies in TESS.
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Mr. Simmons concludes "Hawaii voters may like change in relatively modest doses, but the cure for this disease of electoral apathy may take much stronger medicine." Oh yeah? Like what! Stop trying to force people to do what you think is good for them. I'm happy if ignorant, apathetic sheep don't vote. Leave voting to people who know the issues and care about the result.
Low voter turnout is actually a form of boycott. When the choice is between Tweedledee and Tweedledum, the only way to protest is to not vote. The people do NOT approve of the government's policies, which are enforced by "political correctness" and "bipartisanship" preventing opposition views from getting candidates to stand up and run.
Mr. Simmons desperately wants large voter turnout as a way to validate the policies people actually oppose. I've heard that in some dictatorships people are forced to vote under threat of fines and imprisonment. That's the "stronger medicine" Simmons would prefer?
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