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Reliable and trustworthy evaluation of algorithms is a challenging process.
Firstly, each algorithm has its strengths and weaknesses, and the selection of
test instances can significantly influence the assessment process. Secondly,
the measured performance of the algorithm highly depends on the test
environment architecture, i.e., CPU model, available memory, cache
configuration, operating system's kernel, and even compilation flags. Finally,
it is often difficult to compare algorithm with software prepared by other
researchers. Evaluation as a Service (EaaS) is a cloud computing architecture
that tries to make assessment process more reliable by providing online tools
and test instances dedicated to the evaluation of algorithms. One of such
platforms is Optil.io which gives the possibility to define problems, store
evaluation data and evaluate solutions submitted by researchers in almost real
time. In this paper, we briefly present this platform together with four
challenges that were organized with its support.
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We investigate the electrical current and flow (number of parallel paths)
between two sets of n sources and n sinks in complex networks. We derive
analytical formulas for the average current and flow as a function of n. We
show that for small n, increasing n improves the total transport in the
network, while for large n bottlenecks begin to form. For the case of flow,
this leads to an optimal n* above which the transport is less efficient. For
current, the typical decrease in the length of the connecting paths for large n
compensates for the effect of the bottlenecks. We also derive an expression for
the average flow as a function of n under the common limitation that transport
takes place between specific pairs of sources and sinks.
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We present counter examples to the claim that the $\lambda \phi^4$ inflaton
potential is excluded by recent cosmological data. Finding counter examples
requires that the actually observed primordial fluctuations are generated at
the onset of the slow-roll regime of inflation. This set up for the initial
conditions is therefore different from the usual scenario of chaotic inflation
where inflation starts long before the observed fluctuations are created. The
primordial power spectrum of "just enough" chaotic inflation violates
scale-invariance in a way consistent with observations.
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CeMnNi$_4$ exhibits an unusually large spin polarization, but its origin has
baffled researchers for more than a decade. We use bulk sensitive hard x-ray
photoelectron spectroscopy (HAXPES) and density functional theory based on the
Green's function technique to demonstrate the importance of electron-electron
correlations of both the Ni 3$d$ ($U_{Ni}$) and Mn 3$d$ ($U_{Mn}$) electrons in
explaining the valence band of this multiply correlated material. We show that
Mn-Ni anti-site disorder as well as $U_{Ni}$ play crucial role in enhancing its
spin polarization: anti-site disorder broadens a Ni 3$d$ minority-spin peak
close to the Fermi level ($E_F$), while an increase in $U_{Ni}$ shifts it
towards $E_F$, both leading to a significant increase of minority-spin states
at $E_F$. Furthermore, rare occurrence of a valence state transition between
the bulk and the surface is demonstrated highlighting the importance of HAXPES
in resolving the electronic structure of materials unhindered by surface
effects.
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We investigate the problem of simultaneously dominating all spanning trees of
a given graph. We prove that on 2-connected graphs, a subset of the vertices
dominates all spanning trees of the graph if and only if it is a vertex cover.
Using this fact we present an exact algorithm that finds a simultaneous
dominating set of minimum size using an oracle for finding a minimum vertex
cover. The algorithm can be implemented to run in polynomial time on several
graph classes, such as bipartite or chordal graphs. We prove that there is no
polynomial time algorithm that finds a minimum simultaneous dominating set on
perfect graphs, unless P=NP. Finally, we provide a 2-approximation algorithm
for finding a minimum simultaneous dominating set.
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We propose a novel neural topic model in the Wasserstein autoencoders (WAE)
framework. Unlike existing variational autoencoder based models, we directly
enforce Dirichlet prior on the latent document-topic vectors. We exploit the
structure of the latent space and apply a suitable kernel in minimizing the
Maximum Mean Discrepancy (MMD) to perform distribution matching. We discover
that MMD performs much better than the Generative Adversarial Network (GAN) in
matching high dimensional Dirichlet distribution. We further discover that
incorporating randomness in the encoder output during training leads to
significantly more coherent topics. To measure the diversity of the produced
topics, we propose a simple topic uniqueness metric. Together with the widely
used coherence measure NPMI, we offer a more wholistic evaluation of topic
quality. Experiments on several real datasets show that our model produces
significantly better topics than existing topic models.
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The influence of ordered regions (micro crystallites and aggregates) in the
other wise disordered polymer host matrix on field and temperature dependence
of mobility (\mu) has been simulated. Increase in concentration of ordered
regions leads to increase in magnitude of mobility and in high field regime the
saturation of the mobility occurs at lower electric field strength. The
influence of different mean and standard deviation of Gaussian density of
states (DOS) of ordered regions on the field dependence of mobility was studied
and found to be significant only at higher concentrations. Weak influence of
these parameters at low concentrations are attributed to the strong interface
effects due to the difference in the standard deviation of DOS of two regions
(host and ordered region) and shallow trapping effect by ordered regions. For
all the parameters of ordered regions under investigation the temperature
dependence of mobility (log{\mu}) and the slope of log{\mu} Vs E^{1/2} plot
show 1/T^2 dependence.
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In a beam cycle, there is a chicane bump (BC bump) in the injection region of
China Spallation Neutron Source (CSNS). It is a core part of the injection
system and the important guarantee that the Linac beam injecting into the rapid
cycling synchrotron (RCS). During the beam commissioning, the residual orbit of
BC bump, i.e. the closedorbit distortion (COD) due to the imperfect BC bump,
was an important problem which can affect the orbit correction and beam loss
control of the RCS. In this paper, a method to measure the residual orbit of BC
bump was studied and given. By using the three auxiliary powers of BC magnets,
a method to correct the residual orbit of BC bump was developed. The numerical
simulation results showed that the measurement and correction methods had
worked well and they can be applied to the beam commissioning of CSNS/RCS. The
measurement results in the machine study showed that the residual orbit of BC
bump is not large and can be corrected by the three auxiliary powers of BC
magnets.
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Bracket was slightly different.
Got this for my 05 escalade EXT. I assumed that the fog lights would be identical but the bracket on top has a wierd indent that lowers it where the stock bracket is flat. I solved this by putting a few washers between the mount and the bracket to lift it so it's centered.
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New Delhi, Jan 2 (IANS) Several people including few fire fighters are reported to be trapped inside a factory at Udoh Nagar area of Peeragarhi, the Delhi Fire Services (DFS) said here on Thursday.
According to the DFS chief Atul Garg, “A call for fire in a factory was received at 4.23 a.m. on Thursday, accordingly, 7 fire tenders were sent to the spot. However the fire was followed by a sudden blast, due to which the building collapsed.”
Garg added that when the building collapsed there were people inside it along with the fire fighters who are rescuing them.
However, the number of people trapped inside the structure is not known yet. In total 35 fire tenders are currently on the spot as the rescue operation continues.
–IANS
rag/skp/
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Set in a California detention camp in an indistinct future, an English film crew capture proceedings as young students and political dissidents are put on trial under a fictional 'Insurrection Act' that allows the United States government to suspend civil liberties for its own citizens in cases of emergency without the right to bail or the necessity of evidence. In such cases the government is authorised to apprehend and detain anyone they believe may engage in future activities of sabotage. The group on trial includes a feminist, a black panther and a folk singer.<br /><br />Those convicted by the a Conservative tribunal have the choice of a lengthy prison sentence or three days in Punishment Park, in which they can attain their freedom by reaching an American flag in the desert. They must accomplish this without food or water. They are also to be pursued by armed National Guards and police who can return them to the camp if captured to face the penal sentence attributed to each person convicted. The reality is different; those that choose Punishment Park are hunted and killed or brutalised with no hope of gaining their freedom after a policeman is found dead in the park. The park seems to be a training ground for the police and guards who need to master these acts of suppression so they can be put to use in open American society.<br /><br />Shot on 16mm and in the documentary style developed by Watkins, in his celebrated Culloden and the controversial The War Game for the BBC; he interacts with the prisoners and guards and observes the unconstitutional trial, inter cutting between them to create a totally convincing political movie that still remains vital and relevant. Using his knowledge of the medium, Watkins has produced a driving, relentless and ultimately frightening film portrayal of an entirely fictional American political detention camp that would not convince if it wasn't for his flawless construction. Many of the actors are amateurs improvising with broad characters. The sparks fly in the trial scenes in which each case is heard, in part to the fact that Watkins kept those on trial away from the jury until the filming of those scenes. Watkins also claims that the actors are often expressing their own opinions which certainly explain the ferocity as well as the believability of their performances.<br /><br />The film has been heavily criticised for polarising the opinions of those that see it. It has been claimed that the film is reactionary and unequivocally represents that conservatism and war are the root of America's social problems. While these criticisms may be valid it is important to consider that the film is working on a fictional, metaphorical level and it is perhaps the realism that the film so cleverly constructs that encourages such a heated opinion on its content. In fact the films most important theme is the problem of polarisation itself. The 'conservative' judges and brutal law officers are on one side and the 'liberal' convicts are clearly on the other with no concessions made on either side. This seems to be what the movie is really about. The new law and the park itself is the outgrowth of a situation where mediation between the two political positions has been lost.<br /><br />Made during and in protest to the Vietnam War and the treatment of those who opposed the war in America the films main themes of Governmental persecution of its own citizens and Conservatism impinging on civil liberties still strike the same chord in the era of the Patriot act and the identity card. It also strikes a disturbing chord with news footage of Guantanamo Bay and the treatment of Iraqi prisoners at the hands of Allied forces.<br /><br />The threat of internal 'terrorism' is such a volatile issue that the film cannot fail to connect with current attitudes to the subject. Not surprisingly the film has had a checkered distribution history, being marginalised to an extreme due to its content but the disturbing fact that this movie is that can still remain so relevant today suggests that the wait has not been for nothing. Punishment Park is a film that has had to fight to be seen anywhere and it demands your attention.
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We establish a new oscillation estimate for solutions of nonlinear partial
differential equations of elliptic, degenerate type. This new tool yields a
precise control on the growth rate of solutions near their set of critical
points, where ellipticity degenerates. As a consequence, we are able to prove
the planar counterpart of the longstanding conjecture that solutions of the
degenerate $p$-Poisson equation with a bounded source are locally of class
$C^{p^\prime}=C^{1,\frac{1}{p-1}}$; this regularity is optimal.
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Near-threshold collectivization of continuum shell model eigenstates is
investigated in $^{20}$O on the example of B(E$\lambda$) decays of 4$^+$ states
in the vicinity of elastic and inelastic neutron threshold. Changes of the
electromagnetic transition probabilities as a function of the
continuum-coupling strength are explained by the corresponding evolution of the
double poles of the scattering matrix.
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We present a parallel computation scheme based on the Arnoldi algorithm for
exact diagonalization of quantum-electron models. It contains a selective data
transferring method and distributed storage format for efficient computing of
the matrix-vector product on distributed computing systems. The performed
numerical experiments demonstrated good performance and scalability of our
eigenvalue solver. The developed technique has been applied to investigate the
electronic properties of Sr2RuO4 at experimental temperatures. The role of the
spin-flip term in the electronic Hamiltonian was analyzed.
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This coming from a guy who championed fake news as a way to get elected. The Russian Candidate is likely to tire of this game long before the media does. The media actually feeds on this stuff and will only get more blatant in their questions, doing more fact checking, more quickly and calling him and his running dog lackeys on everything he says.
Eventually he will not be able to say anything without being called a liar.
Some of his supporters would like to see media censorship introduced but that will trigger a constitutional crisis.
It is going be a long four years.
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We consider the ground state magnetic phase diagram of the two-dimensional
Hubbard model with nearest and next-nearest neighbor hopping in terms of
electronic density and interaction. We treat commensurate ferro- and
antiferromagnetic, as well as incommensurate (spiral) magnetic phases. The
first-order magnetic transitions with changing chemical potential, resulting in
a phase separation (PS) in terms of density, are found between ferromagnetic,
antiferromagnetic and spiral magnetic phases. We argue that the account of PS
has a dramatic influence on the phase diagram in the vicinity of half-filling.
The results imply possible interpretation of the unusual behavior of magnetic
properties of one-layer cuprates in terms of PS between collinear and spiral
magnetic phases. The relation of the results obtained to the magnetic
properties of ruthenates is also discussed.
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We investigate a special class of Pr\"ufer domains, firstly introduced by
Dress in 1965. The {\it minimal Dress ring} $D_K$, of a field $K$, is the
smallest subring of $K$ that contains every element of the form $1/(1+x^2)$,
with $x\in K$. We show that, for some choices of $K$, $D_K$ may be a valuation
domain, or, more generally, a B\'ezout domain admitting a weak algorithm. Then
we focus on the minimal Dress ring $D$ of $\mathbb{R}(X)$: we describe its
elements, we prove that it is a Dedekind domain and we characterize its
non-principal ideals. Moreover, we study the products of $2\times 2$ idempotent
matrices over $D$, a subject of particular interest for Pr\"ufer non-B\'ezout
domains.
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Adolescence is a developmental period characterized by significant changes in brain architecture and behavior. The immaturity of the adolescent brain is associated with heightened vulnerability to exogenous agents, including alcohol. Alcohol is the most consumed drug among teenagers, and binge-drinking during adolescence is a major public health concern. Studies have suggested that adolescent alcohol exposure (AAE) may interfere with the maturation of frontal brain regions and lead to long-lasting behavioral consequences. In this study, we used a mouse model of AAE in which adolescent mice reach high blood alcohol concentration after voluntary binge-drinking. In order to assess short- and long-term consequences of AAE, a battery of behavioral tests was performed during late adolescence and during adulthood. We showed that AAE had no short-term effect on young mice behavior but rather increased anxiety- and depressive-like behaviors, as well as alcohol consumption during adulthood. Moreover, alcohol binge-drinking during adolescence dramatically decreased recognition memory performances and behavioral flexibility in both adult males and females. Furthermore, we showed that voluntary consumption of alcohol during adolescence did not trigger any major activation of the innate immune system in the prefrontal cortex (PFC). Together, our data suggest that voluntary alcohol binge-drinking in adolescent mice induces a delayed appearance of behavioral impairments in adulthood.
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"The Intruder (L'Intrus)" is a visual pilgrimage through a mysterious life. <br /><br />Grizzled Michel Subor plays "Louis Trebor" like Jason Bourne as an old man with a hidden past, living simply in an isolated hut in the woods for justifiably paranoid reasons (but attracting pretty young women who can be useful to him). We learn more about him through dreams, flashbacks and a journey that may unfold chronologically or not, as well as through his brusque interactions with family, lovers, business associates and a striking nemesis. Like "The Limey," the film resonates with parent/child regrets and a suspicious past revealed through clips from an old film with the same actor as a young man (here Paul Gégauff's 1965 adventure film "Le Reflux").<br /><br />In a complete contrast of moods, we meet his son Sidney (Grégoire Colin) who has to be the sexiest house husband in the world, as he sweetly and seductively does household repairs and cares for a baby, a toddler and every need of his working wife. Surely director/co-writer Claire Denis must have created him as a woman's fantasy if ever there was one and a lesson to other filmmakers on filming foreplay. There's an additional extended scene where he seeks his father in the woods while carefully carrying his angelic baby in a pouch. He is everything his father is not and has every relationship his father is incapable of sustaining; no wonder he thinks his father is "a lunatic." I spent the rest of the film in dread that something bad would happen to him as the true nature of the heart of his alienated father is very gradually played out before our eyes.<br /><br />The film is a puzzle, but Subor is ruthlessly fascinating as we watch him traverse countries and negotiate nefarious deals, and the voice-over narration for Denis's "Beau Travail" was annoying anyway. We have to figure out from skylines and incidental signage that he is traveling to Geneva, Korea and the South Pacific. Time passing is indicated by the seasons changing and scars being created and healing. There are lots of images of water for cleansing and for distancing. <br /><br />Continuing her fascination with the morphing of colonialism into globalization, as well as playing a bit on stereotypes of the Mysterious Orient and Russian criminals, Denis has incorporated elements from Robert Louis Stevenson, Paul Gauguin and Marlon Brando's Tahiti idylls and a 40-page memoir by French philosopher Jean-Luc Nancy, the last for the title and heart-transplant plot used for an ironic theme of limited immortality which does have consequences.<br /><br />While "Louis" thinks he's succeeded in being above boundaries, rules and morals, there is some amusement in the last act as the locals don't quite know what to do with him and try to help him solve his quixotic odyssey, even as he again lies in isolation.<br /><br />Several people in the audience left in frustration at the elliptical, but strikingly beautiful, story telling method. The unconventional narrative does raise a lot of plot questions on details.
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Motivated by distributed implementations of game-theoretical algorithms, we
study symmetric process systems and the problem of attaining common knowledge
between processes. We formalize our setting by defining a notion of
peer-to-peer networks(*) and appropriate symmetry concepts in the context of
Communicating Sequential Processes (CSP), due to the common knowledge creating
effects of its synchronous communication primitives. We then prove that CSP
with input and output guards makes common knowledge in symmetric peer-to-peer
networks possible, but not the restricted version which disallows output
statements in guards and is commonly implemented.
(*) Please note that we are not dealing with fashionable incarnations such as
file-sharing networks, but merely use this name for a mathematical notion of a
network consisting of directly connected peers "treated on an equal footing",
i.e. not having a client-server structure or otherwise pre-determined roles.)
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A colleague from work told me to watch this movie, since he considered this movie to be one of the best movies ever. So I did watch it. First I have to admit that I dislike mainstream movies and prefer to watch movies with a real meaning.<br /><br />And this is the point, why I dislike this movie. It doesn't have any meaning. It's just a combination of funny, stupid, boring, entertaining, absurd and thrilling pieces.<br /><br />At first I thought that this movie could be a real mystery thriller (as the German packaging read), but the movie was too mysterious for me.<br /><br />David Lynch may be able to make a combination of the most different images, but the composition tastes to me as awfull as a combination of milk with beer. Both for themselves are pretty good, but together?
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Gap-opening planets can generate dust-trapping vortices that may explain some
of the latest discoveries of high-contrast crescent-shaped dust asymmetries in
transition discs. While planet-induced vortices were previously thought to have
concentrated shapes, recent computational work has shown that these features
naturally become much more elongated in the gas when simulations account for
the relatively long timescale over which planets accrete their mass. In this
work, we conduct two-fluid hydrodynamical simulations of vortices induced by
slowly-growing Jupiter-mass planets in discs with very low viscosity ($\alpha =
3 \times 10^{-5}$). We simulate the dust dynamics for four particle sizes
spanning 0.3 mm to 1 cm in order to produce synthetic ALMA images. In our
simulations, we find that an elongated vortex still traps dust, but not
directly at its center. With a flatter pressure bump and disruptions from the
planet's overlapping spiral density waves, the dust instead circulates around
the vortex. This motion (1) typically carries the peak off-center, (2) spreads
the dust out over a wider azimuthal extent $\geq 180^{\circ}$, (3) skews the
azimuthal profile towards the front of the vortex, and (4) can also create
double peaks in newly-formed vortices. In particular, we expect that the most
defining observational signature, a peak offset of more than $30^{\circ}$,
should be detectable $>30\%$ of the time in observations with a beam diameter
of at most the planet's separation from its star.
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In this article, we study the motion of an extended object in various
spacetime geometries consists of the monopole, dipole as well as quadrupole
moment within the framework of the general theory of relativity. We focus on a
compelling limiting case, in which the acceleration of extended object vanishes
and therefore, it becomes indistinguishable from a geodesic trajectory. In this
case, both dipole, as well as the quadrupole moment of the extended object,
would necessarily interact with the various moments of the central object,
resulting in zero acceleration. We show that an object with monopole and dipole
moment, namely the spin, can have a limit where the dipole-monopole and
dipole-dipole interaction between that particle and the central object
respectively vanishes. However, the introduction of quadrupole moment leads to
more complicated situations and only the quadrupole-monopole interaction
consists of a well-posed vanishing limit, while other interactions such as
dipole-quadrupole or quadrupole-quadrupole, in general, remain nonzero. We
expand on these scenarios in detail with their possible physical implications.
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Very Oversized
Good quality, but they’re very large. They look very classy and do a good job going over glasses. I personally didn’t like how dark the lens tint was, but if you want ultimate sun protection these glasses definitely have it. I ended up returning them, because they were way too big on my face.
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Why do they need a giant tax-funded brick-and-mortar tech park to accomplish this? The state has myriad assets in the form of old buildings that could be updated. And the point of tech is it shouldn't require a giant facility, it can be done anywhere you can set up a server base w AC.
Agree w the multiple other commenters; this is thinly veiled pork barrel spending on something we shouldn't be wasting our tax dollars on. This won't encourage any business innovation from outside the state or even within. Look at actual tech hubs and see what they've done - I'm doubtful you'll find this waste anywhere else.
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Well, no, not really. Its not really a good movie, but its not as bad as I thought it was going to be. I really didn't feel ripped off of my rental money, and sometimes thats all you can ask for. The plot is OK, nothing brilliant or new, the acting is pretty bad, but the cast is pretty. The directing is passable, but the effects are horrible, especially the werewolf effects, which in a werewolf movie, is a pretty big problem. There was a fairly decent amount of nudity, which to me is a pretty good thing, but it wasn't all that hot. All in all, its a fairly average direct to video movie, not the worst film I've ever seen and if you're bored a genre fan, check it out sometime. I'd even watch it again.<br /><br />Bonus fact for horror geeks, Kane Hodder (Jason Vorhees in a few of them) plays the werewolf.
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3D shape instantiation which reconstructs the 3D shape of a target from
limited 2D images or projections is an emerging technique for surgical
intervention. It improves the currently less-informative and insufficient 2D
navigation schemes for robot-assisted Minimally Invasive Surgery (MIS) to 3D
navigation. Previously, a general and registration-free framework was proposed
for 3D shape instantiation based on Kernel Partial Least Square Regression
(KPLSR), requiring manually segmented anatomical structures as the
pre-requisite. Two hyper-parameters including the Gaussian width and component
number also need to be carefully adjusted. Deep Convolutional Neural Network
(DCNN) based framework has also been proposed to reconstruct a 3D point cloud
from a single 2D image, with end-to-end and fully automatic learning. In this
paper, an Instantiation-Net is proposed to reconstruct the 3D mesh of a target
from its a single 2D image, by using DCNN to extract features from the 2D image
and Graph Convolutional Network (GCN) to reconstruct the 3D mesh, and using
Fully Connected (FC) layers to connect the DCNN to GCN. Detailed validation was
performed to demonstrate the practical strength of the method and its potential
clinical use.
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In multipole-bound anions, the excess electron is attached by a short-range
multipole potential of a neutral molecule. Such anions are prototypical
marginally-bound open quantum systems. In particular, around the critical
multipole moment required to attach the valence electron, multipole-bound
anions exhibit critical behavior associated with a transition from bound states
dominated by low-$\ell$ partial waves to the electron continuum. In this work,
multipole-bound anions are described using a nonadiabatic electron-plus-rotor
model. The electron-molecule pseudo-potential is represented by a short-range
multipole field with a Gaussian form-factor. The resulting coupled-channel
Schr\"odinger equation is solved by means of the Berggren expansion method, in
which the electron's wave function is decomposed into bound states, narrow
resonances, and the non-resonant scattering continuum. We show that the
Gaussian model predicts the critical transition at the detachment threshold.
Resonant states, including bound states, decaying resonances, subthreshold
resonances, and antibound states are studied, and exceptional points where two
resonant states coalesce are predicted. We discuss the transition of rotational
band structures around the threshold and study the effects of channel coupling
on the decay width of resonant poles.
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Crowdsourcing enables application developers to benefit from large and
diverse datasets at a low cost. Specifically, mobile crowdsourcing (MCS)
leverages users' devices as sensors to perform geo-located data collection. The
collection of geolocated data raises serious privacy concerns for users. Yet,
despite the large research body on location privacy-preserving mechanisms
(LPPMs), MCS developers implement little to no protection for data collection
or publication. To understand this mismatch, we study the performance of
existing LPPMs on publicly available data from two mobile crowdsourcing
projects. Our results show that well-established defenses are either not
applicable or offer little protection in the MCS setting. Additionally, they
have a much stronger impact on applications' utility than foreseen in the
literature. This is because existing LPPMs, designed with location-based
services (LBSs) in mind, are optimized for utility functions based on users'
locations, while MCS utility functions depend on the values (e.g.,
measurements) associated with those locations. We finally outline possible
research avenues to facilitate the development of new location privacy
solutions that fit the needs of MCS so that the increasing number of such
applications do not jeopardize their users' privacy.
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Building on a variant of the Jarzynski equation we propose a new method to
numerically determine the prior-predictive value in a Bayesian inference
problem. The method generalizes thermodynamic integration and is not hampered
by equilibration problems. We demonstrate its operation by applying it to two
simple examples and elucidate its performance. In the case of multi-modal
posterior distributions the performance is superior to thermodynamic
integration.
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We propose a simple data augmentation protocol aimed at providing a
compositional inductive bias in conditional and unconditional sequence models.
Under this protocol, synthetic training examples are constructed by taking real
training examples and replacing (possibly discontinuous) fragments with other
fragments that appear in at least one similar environment. The protocol is
model-agnostic and useful for a variety of tasks. Applied to neural
sequence-to-sequence models, it reduces error rate by as much as 87% on
diagnostic tasks from the SCAN dataset and 16% on a semantic parsing task.
Applied to n-gram language models, it reduces perplexity by roughly 1% on small
corpora in several languages.
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PASADENA, Calif. (KTLA) — The iconic Southern California New Year’s tradition — the Rose Parade — runs along a 5 1/2-mile route in Pasadena and this year includes 39 floral-decorated floats, 20 marching bands, 17 equestrians units, and of course the Royal Court and Rose Queen.
Put on by the Tournament of Roses, the 131st Rose Parade begins at 8 a.m. PT Wednesday, Jan. 1, 2020. This year marks the 73rd consecutive television broadcast of the Rose Parade on KTLA.
The theme for the 2020 parade is “The Power of Hope,” which the tournament says “celebrates the influence of optimism and hope.”
The three grand marshals are Olympic gymnast Laurie Hernandez, actress Gina Torres and prolific performer Rita Moreno.
The 102nd Rose Queen is Camille Kennedy of Pasadena, a senior at La Salle College Preparatory.
KTLA’s hosts for the broadcast are Leeza Gibbons, Mark Steines and Micah Ohlman.
If you’re a particular fan of one of the marching bands in the parade, you can watch the “Band Cam” — a raw, unedited feed devoted to the bands — on KTLA’s Facebook page. The parade will be available to watch on demand on KTLA’s YouTube page.
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In two space dimensions, the parabolic-parabolic Keller--Segel system shares
many properties with the parabolic-elliptic Keller--Segel system. In
particular, solutions globally exist in both cases as long as their mass is
less than 8?. However, this threshold is not as clear in the
parabolic-parabolic case as it is in the parabolic-elliptic case, in which
solutions with mass above 8? always blow up. Here we study forward self-similar
solutions of the parabolic-parabolic Keller--Segel system and prove that, in
some cases, such solutions globally exist even if their total mass is above 8?,
which is forbidden in the parabolic-elliptic case.
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Base station (BS) cooperative transmission can improve the spectrum
efficiency of cellular systems, whereas using which the channels will become
asymmetry. In this paper, we study the impact of the asymmetry on the
performance of channel estimation and precoding in downlink BS cooperative
multiple-antenna multiple-carrier systems. We first present three linear
estimators which jointly estimate the channel coefficients from users in
different cells with minimum mean square error, robust design and least square
criterion, and then study the impact of uplink channel asymmetry on their
performance. It is shown that when the large scale channel information is
exploited for channel estimation, using non-orthogonal training sequences among
users in different cells leads to minor performance loss. Next, we analyze the
impact of downlink channel asymmetry on the performance of precoding with
channel estimation errors. Our analysis shows that although the estimation
errors of weak cross links are large, the resulting rate loss is minor because
their contributions are weighted by the receive signal to noise ratio. The
simulation results verify our analysis and show that the rate loss per user is
almost constant no matter where the user is located, when the channel
estimators exploiting the large scale fading gains.
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I am a huge fan of Say Anything, Jerry Maguire, and Almost Famous (I wasn't that big on Singles), so it's safe to say that I look forward to anything that Cameron Crowe attaches his name to. I went to see Vanilla Sky having been told that it was a very weird movie and that I probably wouldn't like it if I was expecting anything similar to Crowe's other films. Well, having just seen it, let me say that the former was correct, and the latter couldn't have been more wrong. It is a very weird movie, and nothing really comes together until the end. Anyone who tells you that they saw it coming halfway into the movie is either lying to you or is unable to detach their hindsight from their memory. Anyway, the movie was stellar, and I look forward to owning it as soon as the DVD is released. I was moved by the film, and felt emotionally spent by the end. This is an experience that will draw from the viewer the entire spectrum of human emotion, if the viewer allows him/herself into the plot. In the theatre in which I saw the movie, there were more than a few people who clearly lost track of the movie and were bored by it when they found that they were unable to get back into the plot. I'm sure others just lack the ability to properly follow any movie like this. I don't mean that to sound pompous, but some people are more cut out for the Seagal, Chan, Van Damme genre of movies, and these are the types that probably would not enjoy this movie. It is very cerebral, so make sure you are prepared for a two hour mental bender, as well as much thought afterwards.<br /><br />As far as comparing this film to other Crowe movies, it is very similar in at least one regard, in all Crowe movies, the soundtrack is a character unto itself. This is almost definitely due to Crowe's longstanding ties to music, as anyone who has seen Almost Famous knows, and to his marriage to Heart star Nancy Wilson. It was also worthy to note that there was a definite chemistry between Tom Cruise's acting and Crowe's directing that made the movie seem familiar to anyone who has seen Jerry Maguire. In my mind, that is not a bad thing.<br /><br />Anyway, if I had to compare this movie to any one other film, I would say this: if you enjoyed David Fincher's The Game, you will almost certainly be a fan of Vanilla Sky.
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We conjecture an intrinsic UV cutoff for the validity of the effective field
theory with a large number of species coupled to gravity. In four dimensions
such a UV cutoff takes the form $\Lambda=\sqrt{\lambda/ N}M_p$ for $N$ scalar
fields with the same potential $\lambda \phi_i^4$, $i=1,...,N$. This conjecture
implies that the assisted chaotic inflation or N-flation might be in the
swampland, not in the landscape. Similarly a UV cutoff $\Lambda=gM_p/\sqrt{N}$
is conjectured for the U(1) gauge theory with $N$ species.
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We give new Backlund transformations (BTs) for some known integrable (in the
sense of being multidimensionally consistent) quadrilateral lattice equations.
As opposed to the natural auto-BT inherent in every such equation, these BTs
are of two other kinds. Specifically, it is found that some equations admit
additional auto-BTs (with Backlund parameter), whilst some pairs of apparently
distinct equations admit a BT which connects them.
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I thought sleeper cell was interesting, and exciting to watch, up until the last episode, when nothing happens, its F****** BS, you Americans portray Muslims as terrorists, and the Americans as hero's, its the other way around, i hate it when every American TV show ends up predictable, i was hoping the bombs would go off in that stadium, but i knew it would'nt, it takes the joy out of watching it when you know that the good guys are going to save the day, yet again, Americans are the biggest terrorists, g bush the leader of them all, he is to blame for 9/11, and I'm P***** off that you keep throwing these shows at us, which are all the f****** same! i've a good show about terrorism, its called " The Whitehorse" and bush himself the cell leader, its the same with 24, how ever 24 was good, sleeper cell is a mock and should never make a season 2, its F***** joke! and so are you American producers.
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Great in theory, terrible in reality.
Attachment to vent isn't as secure as others I have used. Largely this is due to how I far it sticks out away from the vent. Also, the wireless charging isn't as fast as the other quick charger I use. My phone with a very slim case, still drains while using navigation and taking a call over Bluetooth when it's on the charger. I don't have the issue when it's plugged in rather than on this dock.
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Nothing special
The product adds a little volume, but the hold is terrible, and my hair will fall flat as soon as I leave the bathroom. If I try to use more product I just rip out more hair not sure why but every time I style with this product my hair pulls out.
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We discuss asymptotic behavior of the eigenvalue distribution of the
differential form Laplacian on a Riemannian foliated manifold when the metric
on the ambient manifold is blown up in directions normal to the leaves (in the
adiabatic limit). Motivated by analogies with semiclassical spectral
asymptotics, we use ideas and notions of noncommutative geometry to suggest a
conjectural formula for the eigenvalue distribution in the adiabatic limit,
which we call noncommutative Weyl formula. We review known results and discuss
the correctness of the noncommutative Weyl formula in each case.
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One of the most important characteristics of a quantum graph is the average
density of resonances, $\rho = \frac{\mathcal{L}}{\pi}$, where $\mathcal{L}$
denotes the length of the graph. This is a very robust measure. It does not
depend on the number of vertices in a graph and holds also for most of the
boundary conditions at the vertices. Graphs obeying this characteristic are
called Weyl graphs. Using microwave networks which simulate quantum graphs we
show that there exist graphs which do not adhere to this characteristic. Such
graphs will be called non-Weyl graphs. For standard coupling conditions we
demonstrate that the transition from a Weyl graph to a non-Weyl graph occurs if
we introduce a balanced vertex. A vertex of a graph is called balanced if the
numbers of infinite leads and internal edges meeting at a vertex are the same.
Our experimental results confirm the theoretical predictions of [E. B. Davies
and A. Pushnitski, Analysis and PDE 4, 729 (2011)] and are in excellent
agreement with the numerical calculations yielding the resonances of the
networks.
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We report on the realization and characterization of a magnetic microtrap for
ultra cold atoms near a straight superconducting Nb wire with circular cross
section. The trapped atoms are used to probe the magnetic field outside the
superconducting wire. The Meissner effect shortens the distance between the
trap and the wire, reduces the radial magnetic-field gradients and lowers the
trap depth. Measurements of the trap position reveal a complete exclusion of
the magnetic field from the superconducting wire for temperatures lower than
6K. As the temperature is further increased, the magnetic field partially
penetrates the superconducting wire; hence the microtrap position is shifted
towards the position expected for a normal-conducting wire.
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In this work the ageing dynamics of soft solids of aqueous suspension of
laponite has been investigated under the oscillatory stress field. We observed
that at small stresses elastic and viscous moduli showed a steady rise with the
elastic modulus increasing at a faster rate than the viscous modulus. However
at higher stresses both the moduli underwent a sudden rise by several orders of
magnitude with the onset of rise getting shifted to a higher age for a larger
shear stress. We believe that the observed behavior is due to interaction of
barrier height distribution of the potential energy wells in which the particle
is trapped and strain induced potential energy enhancement of the particles.
Strain induced in the material causes yielding of the particles that are
trapped in the shallower wells. Those trapped in the deeper wells continue to
age enhancing the cage diffusion timescale and thereby the viscosity which
lowers the magnitude of strain allowing more particles to age. This coupled
dependence of strain, viscosity and ageing causes forward feedback for a given
magnitude of stress leading to sudden rise in both the moduli. Changing the
microstructure of the laponite suspension by adding salt affected the barrier
heights distribution that showed a profound influence on the ageing behavior.
Interestingly, this study suggests a possibility that any apparently yielded
material with negligible elastic modulus, may get jammed at a very large
waiting time.
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Recent work of Foda and his group on a connection between classical
integrable hierarchies (the KP and 2D Toda hierarchies) and some quantum
integrable systems (the 6-vertex model with DWBC, the finite XXZ chain of spin
1/2, the phase model on a finite chain, etc.) is reviewed. Some additional
information on this issue is also presented.
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We investigate the influence of spin-orbit coupling $\lambda$ in
strongly-correlated multiorbital systems that we describe by a three-orbital
Hubbard-Kanamori model on a Bethe lattice. We solve the problem at all integer
fillings $N$ with the dynamical mean-field theory using the continuous-time
hybridization expansion Monte Carlo solver. We investigate how the
quasiparticle renormalization $Z$ varies with the strength of spin-orbit
coupling. The behavior can be understood for all fillings except $N=2$ in terms
of the atomic Hamiltonian (the atomic charge gap) and the polarization in the
$j$-basis due to spin-orbit induced changes of orbital degeneracies and the
associated kinetic energy. At $N=2$, $\lambda$ increases $Z$ at small $U$ but
suppresses it at large $U$, thus eliminating the characteristic Hund's metal
tail in $Z(U)$. We also compare the effects of the spin-orbit coupling to the
effects of a tetragonal crystal field. Although this crystal field also lifts
the orbital degeneracy, its effects are different, which can be understood in
terms of the different form of the interaction Hamiltonian expressed in the
respective diagonal single-particle basis.
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We present a novel paradigm for dispersion engineering in coupled
transmission lines (CTLs) based on exceptional points of degeneracy (EPDs). We
develop a theory for fourth-order EPDs consisting of four Floquet-Bloch
eigenmodes coalescing into one degenerate eigenmode. We present unique wave
propagation properties associated to the EPD and develop a figure of merit to
assess the practical occurrence of fourth-order EPDs in CTLs with tolerances
and losses. We experimentally verify for the first time the existence of a
fourth EPD (the degenerate band edge), through dispersion and transmission
measurements in microstrip-based CTLs at microwave frequencies. In addition, we
report that based on experimental observation and the developed figure of
merit, the EPD features are still observable in structures that radiate (leak
energy away), even in the presence of fabrication tolerances and dissipative
losses. We investigate the gain and loss balance regime in CTLs as a mean of
recovering an EPD in the presence of radiation and/or dissipative losses,
without necessarily resorting to Parity-Time (PT)-symmetry regimes. The
versatile EPD concept is promising in applications such as high intensity and
power-efficiency oscillators, spatial power combiners, or low-threshold
oscillators and opens new frontiers for boosting the performance of large
coherent sources.
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Ru and Rh are interesting cases for comparing equations of state (EOS),
because most general purpose EOS are semi-empirical, relying heavily on shock
data, and none has been reported for Ru. EOS were calculated for both elements
using all-electron atom-in-jellium theory, and cold compression curves were
calculated for the common crystal types using the multi-ion pseudopotential
approach. Previous EOS constructed for these elements used Thomas-Fermi (TF)
theory for the electronic behavior at high temperatures, which neglects
electronic shell structure; the atom-in-jellium EOS exhibited pronounced
features from the excitation of successive electron shells. Otherwise, the EOS
matched surprisingly well, especially considering the lack of experimental data
for Ru. The TF-based EOS for Ru may however be inaccurate in the
multi-terapascal range needed for some high energy density experiments. The
multi-ion calculations predicted that the hexagonal close-packed phase of Ru
remains stable to at least 2.5 TPa and possibly 10 TPa, and that its c/a should
gradually increase to the ideal value. A method was devised to estimate the
variation in Debye temperature from the cold curve, and thus estimate the
ion-thermal EOS without requiring relatively expensive dynamical force
calculations, in a form convenient for adjusting EOS or phase boundaries. The
Debye temperature estimated in this way was similar to the result from
atom-in-jellium calculations. We also predict the high-pressure melt loci of
both elements.
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We present a spectral line survey of the C-rich envelope CIT 6 in the 2mm and
1.3mm bands carried out with the Arizona Radio Observatory (ARO) 12m telescope
and the Heinrich Hertz Submillimeter Telescope (SMT). The observations cover
the frequency ranges of 131--160 GHz, 219--244 GHz, and 252--268 GHz with
typical sensitivity limit of T_R<10 mK. A total of 74 individual emission
features are detected, of which 69 are identified to arise from 21 molecular
species and isotopologues, with 5 faint lines remaining unidentified. Two new
molecules (C4H and CH3CN) and seven new isotopologues (C17O, 29SiC2, 29SiO,
30SiO, 13CS, C33S, and CS) are detected in this object for the first time. The
column densities, excitation temperatures, and fractional abundances of the
detected molecules are determined using rotation diagram analysis. Comparison
of the spectra of CIT 6 to that of IRC+10216 suggests that the spectral
properties of CIT 6 are generally consistent with those of IRC+10216. For most
of the molecular species, the intensity ratios of the lines detected in the two
objects are in good agreement with each other. Nevertheless, there is evidence
suggesting enhanced emission from CN and HC3N and depleted emission from HCN,
SiS, and C4H in CIT 6. Based on their far-IR spectra, we find that CIT 6
probably has a lower dust-to-molecular gas ratio than IRC+10216. To investigate
the chemical evolution of evolved stars, we compare the molecular abundances in
the AGB envelopes CIT 6 and IRC+10216 and those in the bright proto-planetary
nebula CRL 618. The implication on the circumstellar chemistry is discussed.
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Made me wish my own happy birds could talk. Tisk tisk on the reviewer who dissed the movie. A sweet story that people of all ages will enjoy. Paulie is a lovable little treasure. He has quite a few clever lines that truly made me laugh. I especially loved the dance sequences during his showbiz stint. You can forgive the obvious clichés as you cheer him on in his quest to be reunited with Marie. A charming movie featuring two strong characters who genuinely befriend the little parrot separated from his young owner. Would have liked to have seen more of the woman who becomes blind and must abandon their mutual journey. I liked her artistic and poetic inspirations, a shame she could not share Paulie's reunion. Bless Paulie in his new home, at last with Marie, perhaps joined by the nice young man who helped him defeat the antagonists to complete his journey.
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Convolutional neural networks (CNN's) are powerful and widely used tools.
However, their interpretability is far from ideal. One such shortcoming is the
difficulty of deducing a network's ability to generalize to unseen data. We use
topological data analysis to show that the information encoded in the weights
of a CNN can be organized in terms of a topological data model and demonstrate
how such information can be interpreted and utilized. We show that the weights
of convolutional layers at depths from 1 through 13 learn simple global
structures. We also demonstrate the change of the simple structures over the
course of training. In particular, we define and analyze the spaces of spatial
filters of convolutional layers and show the recurrence, among all networks,
depths, and during training, of a simple circle consisting of rotating edges,
as well as a less recurring unanticipated complex circle that combines lines,
edges, and non-linear patterns. We also demonstrate that topological structure
correlates with a network's ability to generalize to unseen data and that
topological information can be used to improve a network's performance. We
train over a thousand CNN's on MNIST, CIFAR-10, SVHN, and ImageNet.
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This product will damage your device during installation
I am extremely unhappy about this product. DO NOT purchase it for your surface Book 2. This product is not well designed and will actually damage your laptop during installation; It tears apart the aluminum coating. Also, it is nearly impossible to get this product on my device without filing off a component. If this component was not filed off, I would not have been able to get this product on my device without seriously damaging it. I should be requesting a new laptop, but I will be requesting a refund instead. Stay away from this case, it's not worth it.
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Go to an office supply store
The product I got was clearly used and returned before being sent to me. It was dented and missing one of the buttons on the bottom so it’s annoyingly wobbly. The dent wasn’t a huge deal bc I was able to pop it out enough to look like it should. Also, mini post it’s dont fit in the compartment the way the pics make it look. The compartment is just a hair too small for the small post it’s. Otherwise it’s fine I guess... not the best product but it is what it is. You can likely get something better at an office supply store. I wouldn’t purchase this again and I’m very disappointed that I was sent a visibly used and damaged product.
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Recently the first author and Jang Soo Kim introduced lecture hall tableaux
in their study of multivariate little q-Jacobi polynomials. They then
enumerated bounded lecture hall tableaux and showed that their enumeration is
closely related to standard and semistandard Young tableaux. In this paper we
study the asymptotic behavior of these bounded tableaux thanks to two other
combinatorial models: non intersecting paths on a graph whose faces are squares
and pentagons and dimer models on a lattice whose faces are hexagons and
octogons. We use the tangent method to investigate the arctic curve in the
model of nonintersecting lattice paths with fixed starting points and ending
points distributibuted according to some arbitrary piecewise differentiable
function. We then study the dimer model and use some ansatz to guess the
asymptotics of the inverse of the Kasteleyn matrix confirm the arctic curve
computed with the tangent method for two examples.
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In this document, we present the Technical Design Report of the Upgrade of
the T2K Near Detector ND280. The goal of this upgrade is to improve the Near
Detector performance to measure the neutrino interaction rate and to constrain
the neutrino interaction cross-sections so that the uncertainty in the number
of predicted events at Super-Kamiokande is reduced to about 4%. This will allow
to improve the physics reach of the T2K-II project. This goal is achieved by
modifying the upstream part of the detector, adding a new highly granular
scintillator detector (Super-FGD), two new TPCs (High-Angle TPC) and six TOF
planes. Details about the detector concepts, design and construction methods
are presented, as well as a first look at the test-beam data taken in Summer
2018. An update of the physics studies is also presented.
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well i i think what's happened too is just our technology is just advancing so rapidly that and there's so much information available out there that folks out there just have a hard time keeping up aside from just going through their daily routine of living to get from day to day
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Hydrogenation from C60 to C60H60 has been studied by unrestricted broken spin
symmetry Hartree-Fock approach implemented in semiempirical codes based on AM1
technique. The calculations were focused on sequential addition of hydrogen
molecules to the fullerene cage following the indication of the cage target
atoms by the highest atomic chemical susceptibility calculated at each step.
The obtained results are analyzed from energetic, symmetry, and the composition
abundance viewpoints.
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We have discovered that room temperature liquid metal is capable of
penetrating through macro- and microporous materials by applying a voltage. In
this work, we demonstrate the liquid metal penetration effect in various porous
materials such as tissue paper, thick and fine sponges, fabrics, and meshes.
The penetration effect mimics one of the three well-known superfluid properties
of liquid helium superfluid that only occur at near-zero Kelvin. The underlying
mechanism is that the high surface tension of liquid metal can be significantly
reduced to near-zero due to the voltage induced oxidation of the liquid metal
surface in a solution. It is the extremely low surface tension and gravity that
cause the liquid metal to superwet the solid surface, leading to the
penetration phenomena. Our findings offer new opportunities for novel
microfluidic applications and could promote further discovery of more exotic
fluid states of liquid metals.
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We construct thought experiments involving the perturbations of Kerr-Newman
black holes by neutral test fields to evaluate the validity of the weak form of
the cosmic censorship conjecture. We first show that neglecting backreaction
effects, extremal Kerr-Newman black holes which satisfy the condition
$(J^2/M^4)<(1/3)$ can be overspun by scalar fields. This result, which could
not be discerned in the previous analyses to first order, is prone to be fixed
by employing backreaction effects. However the perturbation of Kerr-Newman
black holes by neutrino fields leads to a generic overspinning of the black
hole due to the absence of a lower limit for the frequency of the incident wave
to ensure that it is absorbed by the black hole. For this case, the destruction
of the event horizon cannot be fixed by any form of backreaction effects. This
result should not be interpreted as a counter-example to any of the previous
results which were based on the assumption that the null energy condition is
satisfied. We clarify and justify our arguments with numerical examples.
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This paper presents a data set describing the evolution of results in the
Portuguese Parliamentary Elections of October 6$^{th}$ 2019. The data spans a
time interval of 4 hours and 25 minutes, in intervals of 5 minutes, concerning
the results of the 27 parties involved in the electoral event. The data set is
tailored for predictive modelling tasks, mostly focused on numerical
forecasting tasks. Regardless, it allows for other tasks such as ordinal
regression or learn-to-rank.
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Just another very positive review
I am still reading the book, but I have to say that I believe it to be a masterpiece. I find it to be truly enlightening, and addictive to read. I love it because it has made many unclear concepts from quantum mechanics clear and the physical applications of group theory are always present, keeping the book entertaining.
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I turned this on to see the incredible Ethel Waters, whose autobiography I am now reading. I'll admit my jaw dropped when the pork chops and watermelon references started rolling in, but people cannot look at this movie as a stereotypical or racist piece. It's pretty much a short film made by blacks, for blacks at a time when the entertainment industry was quite segregated and the stereotypes to the people involved were the jokes of their time, old trends exaggerated for humor. We see modern black movies do the same thing, but with the new trends (stereotypes), "ho's" and the "hood" and such. I think if you look back in eighty years, you would find today's movies will look just as racist. What viewers should appreciate about this film is the talent of Waters and the pint-sized Sammy Davis Jr., who out taps his contemporary, Shirley Temple, and looks remarkably the same facially as he did as an adult. Everyone involved in this film clearly had a lot of fun making it. Why not enjoy it for what it is, instead of what you think it should have been?
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In this installment of the series, Edmund Blackadder is stuck in the Regency period in Britain (during the later portion of George III's rule). This time, Blackadder's prospects are much poorer--as instead of royalty, he's a servant to the very, very thick George IV (the price regent). Unlike the historical accounts of George IV, this one is about as bright as a tomato and as a result, Blackadder's able to take advantage of him and scheme to his heart's content. The only major difference in style between this one and earlier ones is that the series ends on a very, very, very different note--you just have to see it to believe it. Other than that, all the usual story elements are there and the show is hilarious. The only reservation I have (as always) is that this show is not appropriate for the kids due to its crude language and adult situations.
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Camera sensor noise is one of the most reliable device characteristics in
digital image forensics, enabling the unique linkage of images to digital
cameras. This so-called camera fingerprint gives rise to different
applications, such as image forensics and authentication. However, if images
are publicly available, an adversary can estimate the fingerprint from her
victim and plant it into spurious images. The concept of fragile camera
fingerprints addresses this attack by exploiting asymmetries in data access:
While the camera owner will always have access to a full fingerprint from
uncompressed images, the adversary has typically access to compressed images
and thus only to a truncated fingerprint. The security of this defense,
however, has not been systematically explored yet. This paper provides the
first comprehensive analysis of fragile camera fingerprints under attack. A
series of theoretical and practical tests demonstrate that fragile camera
fingerprints allow a reliable device identification for common compression
levels in an adversarial environment.
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Don’t waste your money
These are trash. Filled with styrofoam balls and cat litter? Also a cheap trash bag inside them as well. Not the correct weight or feel of a sack. They are not consistent in size. One as small as a ping pong ball. The knit crochet isn’t closed properly causing the cheap insides to spill out. What a disappointment, seriously...don’t buy.
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In this article we prove weighted norm inequalities and pointwise estimates
between the multilinear fractional integral operator and the multilinear
fractional maximal. As a consequence of these estimations we obtain weighted
weak and strong inequalities for the multilinear fractional integral operator.
In particular, we extend some results given in \cite{CPSS} to the multilinear
context. On the other hand we prove weighted pointwise estimates between the
multilinear fractional maximal operator ${\cal M}_{\alpha,B}$ associated to a
Young function $B$ and the multilinear maximal operators ${\cal M}_{\psi}={\cal
M}_{0,\psi}$, $\psi(t)=B(t^{1-\alpha/(nm)})^{{nm}/{(nm-\alpha)}}$. As an
application of these estimate we obtain a direct proof of the $L^p-L^q$
boundedness results of ${\cal M}_{\alpha,B}$ for the case $B(t)=t$ and
$B_k(t)=t(1+\log^+t)^k$ when $1/q=1/p-\alpha/n$. We also give sufficient
conditions on the weights involved in the boundedness results of ${\cal
M}_{\alpha,B}$ that generalizes those given in \cite{M} for $B(t)=t$. Finally,
we prove some boundedness results in Banach function spaces for a generalized
version of the multilinear fractional maximal operator.
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We present quantum-based simulations of single grain boundary reflectivity of
electrons in metals, Cu and Ag. We examine twin and non-twin grain boundaries
using non-equilibrium Green's function and first principles methods. We also
investigate the mechanism of reflectivity in grain boundaries by modeling
atomic vacancies, disorder, and orientation and find that the change in grain
orientation and disorder in the boundary itself both contribute significantly
to reflectivity. We find that grain boundary reflectivity may vary widely
depending on the grain boundary structure consistent with experimental results.
Finally, we examine the reflectivity from multiple grain boundaries and find
that grain boundary reflectivity may depend on neighboring grain boundaries.
This study based on detailed numerical techniques reveals some potential
limitations in the independent grain boundary assumptions of the
Mayadas-Shatzkes model.
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We study a model situation in which direct limit ($\text{colim}$) and inverse
limit ($\lim$) do not commute, and offer some computations of their
"commutator".
The homology of a separable metrizable space $X$ has two well-known
approximants: $qH_n(X)$ ("\v{C}ech homology") and $pH_n(X)$ ("\v{C}ech homology
with compact supports"), which are not homology theories but are nevertheless
interesting as they are $\lim\text{colim}$ and $\text{colim}\lim$ applied to
homology of finite simplicial complexes. The homomorphism $\tau_X: pH_n(X)\to
qH_n(X)$, which is a special case of the natural map
$\text{colim}\lim\to\lim\text{colim}$, need not be either injective (P. S.
Alexandrov, 1947) or surjective (E. F. Mishchenko, 1953), but its surjectivity
for locally compact $X$ remains an open problem.
For locally compact $X$, the dual map in cohomology $pH^n(X)\to qH^n(X)$ is
shown to be surjective and its kernel is computed, in terms of $\lim^1$ and a
new functor $\lim^1_{\text{fg}}$. The original map $\tau_X$ is surjective and
its kernel is computed when $X$ is a "compactohedron", i.e. contains a
compactum whose complement is a polyhedron.
We also show that $\tau_X$ is surjective for locally compact $X$ assuming (i)
two assertions known to be consistent with ZFC and (ii) that all locally
compact spaces $X$ satisfy $\lim^2 H_{n+1}(N_\alpha)=0$, where $N_\alpha$ runs
over the nerves of all open covers of $X$.
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Many IoT use cases involve constrained battery-powered devices offering
services in a RESTful manner to their communication partners. Such services may
involve, e.g., costly computations or actuator/sensor usage, which may have
significant influence on the power consumption of the service Providers. Remote
attackers may excessively use those services in order to exhaust the Providers'
batteries, which is a form of a Denial of Service (DoS) attack. Previous work
proposed solutions based on lightweight symmetric authentication. These
solutions scale poorly due to requiring pre-shared keys and do not provide
protection against compromised service Requesters. In contrast, we consider
more powerful attackers even capable of compromising legit Requesters. We
propose a method that combines attacker detection and throttling, conducted by
a third trusted Backend, with a lightweight authentication protocol. For
attacker detection and throttling, we propose a novel approach using rate
limitation algorithms. In addition, we propose and formally verify two
authentication protocols suitable for different, widely used IoT network
topologies. Our protocols ensure service availability for benign Requesters
even if Providers are under a battery exhaustion attack. The protocols do
neither require pre-shared keys between Requesters and Providers, nor the usage
of asymmetric cryptography and public key infrastructures on the Provider. This
makes our protocols suitable for a variety of IoT deployments involving
constrained devices and constrained networks. We demonstrate the feasibility of
our method through a simulation and a proof of concept implementation.
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I don't know if this type of movie was as cliché then as it seems to be now.<br /><br />Considering how many "Bad News Bears" films had already been released by 1980, however, I think that this sort of movie was already a tired idea.<br /><br />A former football player is partially paralyzed in Vietnam and is confined to a wheelchair. The Chicago Bears offer him a PR job but he wants to coach. At the same time, his underage nephew is picked up for armed robbery. We are told that he has already been arrested over a dozen times before and he must now serve some hard time...which turns out to be less than a year! <br /><br />Of course, the kid is actually a good kid who only needs a tough male role model in his life. The same goes for all of the kids in the detention facility. Yes...even the one locked up for attempted murder! I'm sure you already know what happens so I'll try and keep the rest of this brief.<br /><br />Our protagonist becomes the coach of the kids' football team. He overcomes the delinquents' cynicism and earns their respect. His team faces off against a local high school team (yeah right!) and they get their butts kicked. Now determined more than ever to prove himself a worthy coach, he demands a rematch. Will these underprivileged, scrappy kids with hearts of gold be able to improve enough to win the rematch? Awful execution of the football sequences ruins any possibility of excitement in this film. "Coach Of The Year" should get penalized for roughing my brain. 1/10
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We investigate the set S(R) of shift-isomorphism classes of semidualizing
R-complexes, ordered via the reflexivity relation, where R is a commutative
noetherian local ring. Specifically, we study the question of whether S(R$ has
cardinality 2^n for some n. We show that, if there is a chain of length n in
S(R) and if the reflexivity ordering on S(R) is transitive, then S(R) has
cardinality at least 2^n, and we explicitly describe some of its
order-structure. We also show that, given a local ring homomorphism f: R\to S
of finite flat dimension, if R and S admit dualizing complexes and if f is not
Gorenstein, then the cardinality of S(S) is at least twice the cardinality of
S(R).
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Human pose estimation - the process of recognizing a human's limb positions
and orientations in a video - has many important applications including
surveillance, diagnosis of movement disorders, and computer animation. While
deep learning has lead to great advances in 2D and 3D pose estimation from
single video sources, the problem of estimating 3D human pose from multiple
video sensors with overlapping fields of view has received less attention. When
the application allows use of multiple cameras, 3D human pose estimates may be
greatly improved through fusion of multi-view pose estimates and observation of
limbs that are fully or partially occluded in some views. Past approaches to
multi-view 3D pose estimation have used probabilistic graphical models to
reason over constraints, including per-image pose estimates, temporal
smoothness, and limb length. In this paper, we present a pipeline for
multi-view 3D pose estimation of multiple individuals which combines a
state-of-art 2D pose detector with a factor graph of 3D limb constraints
optimized with belief propagation. We evaluate our results on the TUM-Campus
and Shelf datasets for multi-person 3D pose estimation and show that our system
significantly out-performs the previous state-of-the-art with a simpler model
of limb dependency.
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We present a new pipelined approach to compute all pairs shortest paths
(APSP) in a directed graph with nonnegative integer edge weights (including
zero weights) in the CONGEST model in the distributed setting. Our
deterministic distributed algorithm computes shortest paths of distance at most
$\Delta$ for all pairs of vertices in at most $2 n \sqrt{\Delta} + 2n$ rounds,
and more generally, it computes h-hop shortest paths for k sources in
$2\sqrt{nkh} + n + k$ rounds. The algorithm is simple, and it has some novel
features and a nontrivial analysis.It uses only the directed edges in the graph
for communication. This algorithm can be used as a base within asymptotically
faster algorithms that match or improve on the current best deterministic bound
of $\tilde{O}(n^{3/2})$ rounds for this problem when edge weights are $O(n)$ or
shortest path distances are $\tilde{O}(n^{3/2})$.
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Back when I was a kid and I lived with my sister, she bought every horror movie she could find and this was one of them. VCR'S had just became a household item and we didn't have but about 150 movies and we watched the hell out of all of them.<br /><br />I was at a yard sale the other day and I saw this VHS copy of BLOOD LEGACY and I buy any horror movie I don't have and I knew this movie looked familiar. I thought for a second and realized it was one that my sister had bought. She had sold it years ago in a yard sale I am guessing - who knows.<br /><br />I didn't recall anything at all about it and I watched it the night I bought it and it refreshed my memory because of a few scenes. I am not sure how I felt about it as a kid but I am sure I enjoyed it because it was new to me and I'd watch and enjoy anything back then.<br /><br />I am a horror freak, but there are certain requirements in order for me to consider it "good" and this one fell very short. It was one of those talk talk talk and bore me to death types. What death scenes you see are done using the shadow on the wall followed by blood splatter and thats if you're lucky you get that much.<br /><br />The story is good and I have seen a few with similar plots, so I think this one should be buried and forgotten. Don't watch this people unless you're hard up.
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In my opinion, the best movie ever. I love when people ask me what this film is about. I usually smile and say "life". They shrug and probably never give it another thought. The fact that everyone from every background can relate to some part of this movie makes it all that much more amazing. Definately a must see for everyone.
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The simulation of the physical movement of multi-body systems at an atomistic
level, with forces calculated from a quantum mechanical description of the
electrons, motivates a graph partitioning problem studied in this article.
Several advanced algorithms relying on evaluations of matrix polynomials have
been published in the literature for such simulations. We aim to use a special
type of graph partitioning in order to efficiently parallelize these
computations. For this, we create a graph representing the zero-nonzero
structure of a thresholded density matrix, and partition that graph into
several components. Each separate submatrix (corresponding to each subgraph) is
then substituted into the matrix polynomial, and the result for the full matrix
polynomial is reassembled at the end from the individual polynomials. This
paper starts by introducing a rigorous definition as well as a mathematical
justification of this partitioning problem. We assess the performance of
several methods to compute graph partitions with respect to both the quality of
the partitioning and their runtime.
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A mathematical framework is constructed for the sum of the lowest N
eigenvalues of a potential. Exactness is illustrated on several model systems
(harmonic oscillator, particle in a box, and Poschl-Teller well). Its
order-by-order semiclassical expansion reduces to the gradient expansion for
slowly-varying densities, but also yields a correction when the system is
finite and the spectrum discrete. Some singularities can be avoided when
evaluating the correction to the leading term. Explicit corrections to the
gradient expansion to the kinetic energy in one dimension are found which, in
simple cases, greatly improve accuracy. We discuss the relevance to practical
density functional calculations.
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Let $q$ be a power of $2$. Recently, Tu and Zeng considered trinomials of the
form $f(X)=X+aX^{(1/4)q^2(q-1)}+bX^{(3/4)q^2(q-1)}$, where $a,b\in\Bbb
F_{q^2}^*$. They proved that $f$ is a permutation polynomial of $\Bbb F_{q^2}$
if $b=a^{2-q}$ and $X^3+X+a^{-1-q}$ has no root in $\Bbb F_q$. In this paper,
we show that the above sufficient condition is also necessary.
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We investigate the scaling relations between the X-ray and the thermal
Sunyaev-Zel'dovich Effect (SZE) properties of clusters of galaxies, using data
taken during 2007 by the Y.T. Lee Array for Microwave Background Anisotropy
(AMiBA) at 94 GHz for the six clusters A1689, A1995, A2142, A2163, A2261, and
A2390. The scaling relations relate the integrated Compton-y parameter Y_{2500}
to the X-ray derived gas temperature T_{e}, total mass M_{2500}, and bolometric
luminosity L_X within r_{2500}. Our results for the power-law index and
normalization are both consistent with the self-similar model and other studies
in the literature except for the Y_{2500}-L_X relation, for which a physical
explanation is given though further investigation may be still needed. Our
results not only provide confidence for the AMiBA project but also support our
understanding of galaxy clusters.
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Spills guaranteed
Whoever designed this bottle has never used it. Can’t pour out without spilling, even when using a funneL unless you are directly pouring it into a tank. I mixed drops of this with gallon jugs which becomes a sloppy mess. Where’s the economy if you are spilling this stuff?
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In this paper we continue the work begun in 2002 on the identification of the
analytical expressions of Feynman integrals which require the evaluation of
multiple elliptic integrals. We rewrite and simplify the analytical expression
of the 3-loop self-mass integral with three equal masses and on-shell external
momentum. We collect and analyze a number of results on double and triple
elliptic integrals. By using very high-precision numerical fits, for the first
time we are able to identify a very compact analytical expression for the
4-loop on-shell self-mass integral with 4 equal masses, that is one of the
master integrals of the 4-loop electron g-2. Moreover, we fit the analytical
expressions of some integrals which appear in lattice perturbation theory, and
in particular the 4-dimensional generalized Watson integral.
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We study the excitation energy spectrum in the S=1/2 ferromagnetic Ising spin
chain with the easy axis z in a magnetic field h={h_x,0,h_z}. According to Wu
and McCoy's scenario of weak confinement, the fermionic spinon excitations
(kinks), being free at h_z = 0 in the ordered phase, are coupled into bosonic
bound states at arbitrary small h_z. We calculate the energy spectrum of such
excitations in the leading order in small h_z, using different perturbative
methods developed for the similar problem in the Ising field theory.
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Array-based, direct-sampling radio telescopes have computational and
communication requirements unsuited to conventional computer and cluster
architectures. Synchronization must be strictly maintained across a large
number of parallel data streams, from A/D conversion, through operations such
as beamforming, to dataset recording. FPGAs supporting multi-gigabit serial I/O
are ideally suited to this application. We describe a recently-constructed
radio telescope called ETA having all-sky observing capability for detecting
low frequency pulses from transient events such as gamma ray bursts and
primordial black hole explosions. Signals from 24 dipole antennas are processed
by a tiered arrangement of 28 commercial FPGA boards and 4 PCs with FPGA-based
data acquisition cards, connected with custom I/O adapter boards supporting
InfiniBand and LVDS physical links. ETA is designed for unattended operation,
allowing configuration and recording to be controlled remotely.
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Shall we similarly limit your ability to misinform others to one posting a day? After all, your right of free speech is just as subject to limitation as your right to defensive arms is. Your beliefs are a poor substitute for facts, especially when your beliefs have been formed in the absence of facts and reason.
Hint - murdering 50+ people is illegal. Assaulting 500+ more with a deadly weapon is illegal. And yet in the world you inhabit, you believe that infringing on the natural right of self defense by passing a law limiting possession of ammunition to 50 rounds will be followed by criminals intent on breaking laws. The bovine scat you are writing does need to stop now. It's irrational and illogical, not to mention wholly illiberal.
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Not so Magnetic
If you just want this board to as a white board to write on it, it is a 5 star product, if you want it for it's magnetic capabilities, you will be out of luck. The one I purchased will not hold paper to the board without sliding off and it is the board and not the magnet, I have tried several with the same result.
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Previous work on electroweak radiative corrections to high energy scattering
using soft-collinear effective theory (SCET) has been extended to include
external transverse and longitudinal gauge bosons and Higgs bosons. This allows
one to compute radiative corrections to all parton-level hard scattering
amplitudes in the standard model to NLL order, including QCD and electroweak
radiative corrections, mass effects, and Higgs exchange corrections, if the
high-scale matching, which is suppressed by two orders in the log counting, and
contains no large logs, is known. The factorization structure of the effective
theory places strong constraints on the form of gauge theory amplitudes at high
energy for massless and massive gauge theories, which are discussed in detail
in the paper. The radiative corrections can be written as the sum of
process-independent one-particle collinear functions, and a universal soft
function. We give plots for the radiative corrections to q qbar -> W_T W_T, Z_T
Z_T, W_L W_L, and Z_L H, and gg -> W_T W_T to illustrate our results. The
purely electroweak corrections are large, ranging from 12% at 500 GeV to 37% at
2 TeV for transverse W pair production, and increasing rapidly with energy. The
estimated theoretical uncertainty to the partonic (hard) cross-section in most
cases is below one percent, smaller than uncertainties in the parton
distribution functions (PDFs). We discuss the relation between SCET and other
factorization methods, and derive the Magnea-Sterman equations for the Sudakov
form factor using SCET, for massless and massive gauge theories, and for light
and heavy external particles.
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We investigate secular evolution in hierarchical quadruple systems as a
formation channel of mass-gap black holes (with masses of about $3-5$
$M_{\odot}$) in systems that will eventually lead to binary black hole mergers
detectable by ground-based gravitational wave detectors (LIGO/Virgo). We show
that in a 3+1 hierarchical system, two episodes of induced mergers would first
cause two neutron stars to merge and form a mass-gap black hole, which will
subsequently merge with another (more massive) black hole through a second
induced merger. We demonstrate that such systems are stable to flybys, and
their formation would predict a high mass ratio and eccentric merger of a
mass-gap black hole with a more massive black hole companion. Such a formation
channel may explain observed gravitational wave events such as the
recently-discovered LIGO/Virgo events S190814bv and S190924h.
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Here are some dietary recommendations:
The U.S. Institute of Medicine (IOM) updated Estimated Average Requirements (EARs) and Recommended Dietary Allowances (RDAs) for molybdenum in 2000. If there is not sufficient information to establish EARs and RDAs, an estimate designated Adequate Intake (AI) is used instead. The current EAR for molybdenum for people ages 19 and up is 34 μg/day. The RDA is 45 μg/day. RDAs are higher than EARs so as to identify amounts that will cover people with higher than average requirements. RDA for pregnancy is 50 μg/day. RDA for lactation is 50 μg/day. For children ages 1–18 years the RDA increases with age from 17 to 43 μg/day. As for safety, the IOM sets Tolerable upper intake levels (ULs) for vitamins and minerals when evidence is sufficient. In the case of molygdenum the UL is 2000 μg/day. Collectively the EARs, RDAs, AIs and ULs are referred to as Dietary Reference Intakes (DRIs).[97]
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This post, Sher, explains all your previous postings, usually dripping with bitterness. I hope someday some people enter your life (note that 50% of marriages do not end in divorce, and you just have to look around you at the grocery store to see many loving families and people enjoying each others' company) who you can cherish.
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Moonchild is a very difficult movie to categorise. It's easiest to think of it as several snapshots of the lives of the two central characters. The fact that these characters are members of a street gang set in an multicultural city of the near future and that one of them is a vampire does not preclude them from having moments like any other people, and this is one of the places where this movie is different to anything else I've ever heard of. It doesn't get wrapped up in the fact that one of the main characters is a vampire, it's just something that has to be dealt with like any other problem. The way the characters interact is surprisingly realistic- there are embarrassing relatives and tricks that are meant to look cool that just don't work, which leaves the film with a lovely sense of not taking itself too seriously for the most part.<br /><br />The other area that really stood out to me is the languages. The fictional city of Mallepa contains various cultural groups, and characters speak the language that they would be expected to speak. Japanese gang members speak Japanese to each other, but Chinese when talking to characters of Chinese descent. Possibly the most amusing exchange involves an Australian and is conducted in English. The actors of the four arguably main characters have three separate mother tongues between them and speak varying levels of each others' languages, so it's quite a feat that the movie was made at all. Which, I suppose, brings me to the lead actors.<br /><br />Much has been made of the fact that the movie stars two of Japan's biggest rockstars, Gackt and Hyde, as well as Taiwanese superstar Lee-hom Wang, whether it is to praise them for their acting or criticise it or simply fangirl about them. In my opinion, Lee-hom is the best at playing a straight and realistic character. However, any lack of acting ability on Gackt's part is mostly masked by the fact that the character he plays is prone to being over-dramatic. I wasn't sure if Hyde's character was supposed to be as sulky and sarcastic as he came across, but it doesn't really detract from the movie either way.<br /><br />There are several scenes which take rather melodramatic turns, which made it difficult for them to affect me much emotionally (Although this doesn't seem to stop a lot of people). I found it's best to just enjoy the movie for what it is and not take it too seriously- It's perfect for getting out and watching with a group of friends. It does have its flaws, but overall it was very enjoyable and I'd highly recommend it to anyone who doesn't mind a few subtitles.
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Multistage stochastic programs can be approximated by restricting policies to
follow decision rules. Directly applying this idea to problems with integer
decisions is difficult because of the need for decision rules that lead to
integral decisions. In this work, we introduce Lagrangian dual decision rules
(LDDRs) for multistage stochastic mixed integer programming (MSMIP) which
overcome this difficulty by applying decision rules in a Lagrangian dual of the
MSMIP. We propose two new bounding techniques based on stagewise (SW) and
nonanticipative (NA) Lagrangian duals where the Lagrangian multiplier policies
are restricted by LDDRs. We demonstrate how the solutions from these duals can
be used to drive primal policies. Our proposal requires fewer assumptions than
most existing MSMIP methods. We compare the theoretical strength of the
restricted duals and show that the restricted NA dual can provide relaxation
bounds at least as good as the ones obtained by the restricted SW dual. In our
numerical study, we observe that the proposed LDDR approaches yield significant
optimality gap reductions compared to existing general-purpose bounding methods
for MSMIP problems.
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We study the optimal teleportation based on Bell measurements via the thermal
states of a two-qubit Heisenberg XXX chain in the presence of
Dzyaloshinsky-Moriya (DM) anisotropic antisymmetric interaction and obtain the
optimal unitary transformation. The explicit expressions of the output state
and the teleportation fidelity are presented and compared with those of the
standard protocol. It is shown that in this protocol the teleportation fidelity
is always larger and unit fidelity is achieved at zero temperature. The DM
interaction can enhance the teleportation fidelity at finite temperatures, as
opposed to the effect of the interaction in the standard protocol. Cases with
other types of anisotropies are also discussed.
|
Weakly supervised referring expression grounding aims at localizing the
referential object in an image according to the linguistic query, where the
mapping between the referential object and query is unknown in the training
stage. To address this problem, we propose a novel end-to-end adaptive
reconstruction network (ARN). It builds the correspondence between image region
proposal and query in an adaptive manner: adaptive grounding and collaborative
reconstruction. Specifically, we first extract the subject, location and
context features to represent the proposals and the query respectively. Then,
we design the adaptive grounding module to compute the matching score between
each proposal and query by a hierarchical attention model. Finally, based on
attention score and proposal features, we reconstruct the input query with a
collaborative loss of language reconstruction loss, adaptive reconstruction
loss, and attribute classification loss. This adaptive mechanism helps our
model to alleviate the variance of different referring expressions. Experiments
on four large-scale datasets show ARN outperforms existing state-of-the-art
methods by a large margin. Qualitative results demonstrate that the proposed
ARN can better handle the situation where multiple objects of a particular
category situated together.
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The paper contains two main results that are obtained by Boolean valued
analysis. The first asserts that a universally complete vector lattice without
locally one-dimensional bands can be decomposed into a direct sum of two vector
sublattices that are laterally complete and invariant under all band
projections and there exists a band preserving linear isomorphism of each of
these sublattices to the original lattice. The second result establishes a
counterpart of the Ando Theorem on the joint characterization of $A\!L^p$ and
$c_0$ for the class of cyclic Banach lattices, using the Boolean valued
transfer for injective Banach lattices.
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Traveling in Germany after the war he felt an uneasy admiration for Hitler's Haus der Kunst exhibition hall in Munich--As you may have guessed, he wrote to the painter Barnett Newman, the thing as a whole was very like the church [design] I sent you--and for Albert Speer's gigantic stadium at Nuremberg.
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Using a recently obtained (general) formula for the interaction energy
between an excited and a ground-state atom (Sherkunov Y 2007 Phys. Rev. A 75
012705), we consider the interaction energy between two such atoms near the
interface between two media. We demonstrate that under the circumstances of the
resonant coupling of the excited atom to the surface polariton mode of a
vacuum-medium system the nonretarded atom*-atom interaction energy can be
enhanced by (several) orders of magnitude in comparison with the van der Waals
interaction energy of the two isolated atoms.
|
A simultaneous change-point detection and estimation in a piece-wise constant
model is a common task in modern statistics. If, in addition, the whole
estimation can be performed automatically, in just one single step without
going through any hypothesis tests for non-identifiable models, or unwieldy
classical a-posterior methods, it becomes an interesting, but also challenging
idea. In this paper we introduce the estimation method based on the quantile
LASSO approach. Unlike standard LASSO approaches, our method does not rely on
typical assumptions usually required for the model errors, such as sub-Gaussian
or Normal distribution. The proposed quantile LASSO method can effectively
handle heavy-tailed random error distributions, and, in general, it offers a
more complex view of the data as one can obtain any conditional quantile of the
target distribution, not just the conditional mean. It is proved that under
some reasonable assumptions the number of change-points is not underestimated
with probability tenting to one, and, in addition, when the number of
change-points is estimated correctly, the change-point estimates provided by
the quantile LASSO are consistent. Numerical simulations are used to
demonstrate these results and to illustrate the empirical performance robust
favor of the proposed quantile LASSO method.
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We present a full list of all representations of the special linear group
$\mathrm{SL}_n$ over the complex numbers with complete intersection invariant
ring, completing the classification of Shmelkin. For this task, we combine
three techniques. Firstly, the graph method for invariants of $\mathrm{SL}_n$
developed by the author to compute invariants, covariants and explicit forms of
syzygies. Secondly, a new algorithm for finding a monomial order such that a
certain basis of an ideal is a Gr\"obner basis with respect to this order,
inbetween usual Gr\"obner basis computation and computation of the Gr\"obner
fan. Lastly, a modification of an algorithm by Xin for MacMahon partition
analysis to compute Hilbert series.
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Great protection, spotting functionality.
We bought two cases. One is great, the other is not so good. They do a good job of protecting the iPad. The removable cover is very nice. But one of the covers doesn’t turn the display off or on. I am guessing that the magnet is in the wrong place. It kept the screen on long after the cover closed.
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The lack of an identifiable intermediate host species for the proximal animal ancestor of SARS-CoV-2, and the large geographical distance between Wuhan and where the closest evolutionary related coronaviruses circulating in horseshoe bats (Sarbecoviruses) have been identified, is fuelling speculation on the natural origins of SARS-CoV-2. We have comprehensively analysed phylogenetic relations between SARS-CoV-2, and the related bat and pangolin Sarbecoviruses sampled so far. Determining the likely recombination events reveals a highly reticulate evolutionary history within this group of coronaviruses. Clustering of the inferred recombination events is non-random with evidence that Spike, the main target for humoral immunity, is beside a recombination hotspot likely driving antigenic shift in the ancestry of bat Sarbecoviruses. Coupled with the geographic ranges of their hosts and the sampling locations, across southern China, and into Southeast Asia, we confirm horseshoe bats, Rhinolophus, are the likely SARS-CoV-2 progenitor reservoir species. By tracing the recombinant sequence patterns, we conclude that there has been relatively recent geographic movement and co-circulation of these viruses ancestors, extending across their bat host ranges in China and Southeast Asia over the last 100 years or so. We confirm that a direct proximal ancestor to SARS-CoV-2 is yet to be sampled, since the closest relative shared a common ancestor with SARS-CoV-2 approximately 40 years ago. Our analysis highlights the need for more wildlife sampling to (i) pinpoint the exact origins of SARS-CoV-2s animal progenitor, and (ii) survey the extent of the diversity in the related Sarbecoviruses phylogeny that present high risk for future spillover.
HighlightsO_LIThe origin of SARS-CoV-2 can be traced to horseshoe bats, genus Rhinolophus, with ranges in both China and Southeast Asia.
C_LIO_LIThe closest known relatives of SARS-CoV-2 exhibit frequent transmission among their Rhinolophus host species.
C_LIO_LISarbecoviruses have undergone extensive recombination throughout their evolutionary history.
C_LIO_LIAccounting for the mosaic patterns of these recombinants is important when inferring relatedness to SARS-CoV-2.
C_LIO_LIBreakpoint patterns are consistent with recombination hotspots in the coronavirus genome, particularly upstream of the pike open reading frame with a coldspot in S1.
C_LI
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