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We analyse the origin of dramatic breakdown of diffractive factorisation,
observed in single-diffractive (SD) dijet production in hadronic collisions.
One of the sources is the application of the results of measurements of the
diagonal diffractive DIS to the off-diagonal hadronic diffractive process. The
suppression caused by a possibility of inelastic interaction with the spectator
partons is calculated at the amplitude level, differently from the usual
probabilistic description. It turns out, however, that interaction with the
spectator partons not only suppresses the SD cross section, but also gives rise
to the main mechanism of SD dijet production, which is another important source
of factorization failure. Our parameter-free calculations of SD-to-inclusive
cross section ratio, performed in the dipole representation, agrees with the
corresponding CDF Tevatron (Run II) data at $\sqrt{s}=1.96$ TeV in the relevant
kinematic regions. The energy and hard scale dependences demonstrate a trend,
opposite to the factorisation-based expectations, similarly to the effect
observed earlier in diffractive Abelian radiation.
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In this letter we report {\it in situ} small--angle neutron scattering
results on the high--density (HDA) and low-density amorphous (LDA) ice
structures and on intermediate structures as found during the temperature
induced transformation of HDA into LDA. We show that the small--angle signal is
characterised by two $Q$ regimes featuring different properties ($Q$ is the
modulus of the scattering vector defined as $Q =
4\pi\sin{(\Theta)}/\lambda_{\rm i}$ with $\Theta$ being half the scattering
angle and $\lambda_{\rm i}$ the incident neutron wavelength). The very low--$Q$
regime ($< 5\times 10^{-2}$ \AA $^{-1}$) is dominated by a Porod--limit
scattering. Its intensity reduces in the course of the HDA to LDA
transformation following a kinetics reminiscent of that observed in wide--angle
diffraction experiments. The small--angle neutron scattering formfactor in the
intermediate regime of $5 \times 10^{-2} < Q < 0.5$ \AA$^{-1}$ HDA and LDA
features a rather flat plateau. However, the HDA signal shows an ascending
intensity towards smaller $Q$ marking this amorphous structure as
heterogeneous. When following the HDA to LDA transition the formfactor shows a
pronounced transient excess in intensity marking all intermediate structures as
strongly heterogeneous on a length scale of some nano--meters.
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Meta-analysis based on only a few studies remains a challenging problem, as
an accurate estimate of the between-study variance is apparently needed, but
hard to attain, within this setting. Here we offer a new approach, based on the
generalized inferential model framework, whose success lays in marginalizing
out the between-study variance, so that an accurate estimate is not essential.
We show theoretically that the proposed solution is at least approximately
valid, with numerical results suggesting it is, in fact, nearly exact. We also
demonstrate that the proposed solution outperforms existing methods across a
wide range of scenarios.
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We propose a procedure for assigning a relevance measure to each explanatory
variable in a complex predictive model. We assume that we have a training set
to fit the model and a test set to check the out of sample performance. First,
the individual relevance of each variable is computed by comparing the
predictions in the test set, given by the model that includes all the variables
with those of another model in which the variable of interest is substituted by
its ghost variable, defined as the prediction of this variable by using the
rest of explanatory variables. Second, we check the joint effects among the
variables by using the eigenvalues of a relevance matrix that is the covariance
matrix of the vectors of individual effects. It is shown that in simple models,
as linear or additive models, the proposed measures are related to standard
measures of significance of the variables and in neural networks models (and in
other algorithmic prediction models) the procedure provides information about
the joint and individual effects of the variables that is not usually available
by other methods. The procedure is illustrated with simulated examples and the
analysis of a large real data set.
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Shimla, Jan 1 (IANS) The high court here on Monday dismissed a petition challenging the order of appointment of Meera Walia, wife of Subhash Ahluwalia, former Principal Private Secretary to ex-Chief Minister Virbhadra Singh, as a member of the Himachal Pradesh Public Service Commission (HPPSC).
While disposing of the petition of Hem Raj, a law student, a division bench comprising Chief Justice L. Narayana Swamy and Justice Jyotsna Rewal Dua said the appointment was made by adopting and following the due procedure as mandated by the Constitution and the respondent had been discharged by a Special Judge in allegations of corruption.
The court said the petitioner approached the court not with clean hands, but it refrained itself from imposing cost on him for filing such a petition despite being a law student.
The judges hoped the state must step in and take urgent steps to frame memorandum of procedure, administrative guidelines and parameters for the selection and appointment of the chairperson and members of HPPSC so that the possibility of arbitrary appointment is eliminated.
The petitioner had challenged Walia's appointment on the ground that a first information report (FIR) was lodged against her in the state Vigilance and Anti Corruption Bureau under various sections of the Prevention of Corruption Act in 2008.
Official sources told IANS that Ahluwalia has been accused of misusing state funds to acquire assets during his previous tenure as Principal Private Secretary to Virbhadra Singh from 2003-07.
He has been asked for details about foreign remittances received by him from his children who are working in the US.
Ahluwalia was re-appointed as Principal Private Secretary in 2013.
vg/arm |
Evaluating data separation in a geometrical space is fundamental for pattern
recognition. A plethora of dimensionality reduction (DR) algorithms have been
developed in order to reveal the emergence of geometrical patterns in a low
dimensional visible representation space, in which high-dimensional samples
similarities are approximated by geometrical distances. However, statistical
measures to evaluate directly in the low dimensional geometrical space the
sample group separability attaiend by these DR algorithms are missing.
Certainly, these separability measures could be used both to compare algorithms
performance and to tune algorithms parameters. Here, we propose three
statistical measures (named as PSI-ROC, PSI-PR, and PSI-P) that have origin
from the Projection Separability (PS) rationale introduced in this study, which
is expressly designed to assess group separability of data samples in a
geometrical space. Traditional cluster validity indices (CVIs) might be applied
in this context but they show limitations because they are not specifically
tailored for DR. Our PS measures are compared to six baseline cluster validity
indices, using five non-linear datasets and six different DR algorithms. The
results provide clear evidence that statistical-based measures based on PS
rationale are more accurate than CVIs and can be adopted to control the tuning
of parameter-dependent DR algorithms.
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We describe a field theory for "massive dual gravity" in N spacetime
dimensions. We obtain a Lagrangian that gives the lowest order coupling of the
field to the N-dimensional curl of its own energy-momentum tensor. We then
briefly discuss classical solutions. Finally, we show the theory is the exact
dual of the Ogievetsky-Polubarinov model generalized to any N.
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Assuming that AXPs and SGRs accrete matter from a fallback disk, we attempt
to explain both the soft and the hard X-ray emission as the result of the
accretion process. We also attempt to explain their radio emission or the lack
of it. We test the hypothesis that the power-law, hard X-ray spectra are
produced in the accretion flow mainly by bulk-motion Comptonization of soft
photons emitted at the neutron star surface. Fallback disk models invoke
surface dipole magnetic fields of $10^{12} - 10^{13}$ G, which is what we
assume here. Unlike normal X-ray pulsars, for which the accretion rate is
highly super-Eddington, the accretion rate is approximately Eddington in AXPs
and SGRs and thus the bulk-motion Comptonization operates efficiently. As an
illustrative example we reproduce both the hard and the soft X-ray spectra of
AXP 4U 0142+61 well using the XSPEC package compTB. Our model seems to explain
both the hard and the soft X-ray spectra of AXPs and SGRs, as well as their
radio emission or the lack of it, in a natural way. It might also explain the
short bursts observed in these sources. On the other hand, it cannot explain
the giant X-ray outbursts observed in SGRs, which may result from the
conversion of magnetic energy in local multipole fields.
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Atomic wave packets loaded into a phase-modulated vertical optical-lattice
potential exhibit a coherent delocalization dynamics arising from intraband
transitions among Wannier-Stark levels. Wannier-Stark intraband transitions are
here observed by monitoring the in situ wave-packet extent. By varying the
modulation frequency, we find resonances at integer multiples of the Bloch
frequency. The resonances show a Fourier-limited width for interrogation times
up to 2 s. This can also be used to determine the gravity acceleration with ppm
resolution.
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Roger Corman is undeniably one of the most versatile and unpredictable directors/producers in history. He was single-handedly responsible for some of my favorite horror films ever (like the Edgar Allen Poe adaptations "Masque of the Red Death" and "Pit and the Pendulum") as well as some insufferably cheap and tacky rubbish quickies (like "Creature from the Haunted Sea" and "She Gods of the Shark Reef"). Corman also made a couple of movies that are simply unclassifiable and simply put nearly impossible to judge properly. "The Trip", for example, as well as this imaginatively titled "Gas-s-s-s" can somewhat be labeled as psychedelic exploitation. In other words, they're incredibly strange hippie-culture influenced movies. Half of the time you haven't got the slightest idea what's going on, who these characters are that walk back and forth through the screen and where the hell this whole thing is going. The plot is simply and yet highly effective: a strange but deadly nerve gas is accidentally unleashed and promptly annihilates that the entire world population over the age of 25. This *could* be the basic premise of an atmospheric, gritty and nail-bitingly suspenseful post-apocalyptic Sci-Fi landmark, but writer George Armitage and Roger Corman decided to turn it into a "trippy" road-movie comedy. None of the characters is even trying to prevent their inevitable upcoming deaths; they just party out in the streets and found little juvenile crime syndicates. "Gas-s-s-s" is a disappointingly boring and tries overly hard to be bizarre. The entire script appears to be improvised at the spot and not at all funny. Definitely not my cup of tea, but the film does have a loyal fan base and many admirers, so who am I to say that it's not worth your time or money? |
Too small.
I measured my lounge chair and ordered based on those measurements. The length was fine. It was almost 3 inches short on each side. I can not tie the tie downs because it is so short. The material is nice and appears to be sturdy. I will have to return it. |
We analyze the interaction of a nanomagnet with a single photonic mode of a
microcavity in a fully quantum-mechanical treatment and find that exceptionally
large quantum-coherent magnet-photon coupling can be achieved. Coupling terms
in excess of several THz are predicted to be achievable in a spherical cavity
of ~1 mm radius with a nanomagnet of ~100 nm radius and ferromagnetic resonance
frequency of ~200 GHz. Eigenstates of the magnet-photon system correspond to
entangled states of spin orientation and photon number, in which over 10^5
values of each quantum number are represented; conversely initial (coherent)
states of definite spin and photon number evolve dynamically to produce large
oscillations in the microwave power (and nanomagnet spin orientation), and are
characterized by exceptionally long dephasing times.
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The similarity of massive CSW scalar vertices and quark vertices can be
understood using a kind of light-cone SUSY transformation presented in this
paper. We also show that the canonical transformation generating the MHV-SQCD
lagrangian, can be fixed by applying this light-cone SUSY transformation to the
canonical transformation for MHV-QCD obtained in paper arxiv:0805.0239. Most of
the massive CSW vertices for SQCD can also be pinned down in this way.
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We demonstrate experimentally that disordered scattering can be used to
improve, rather than deteriorate, the focusing resolution of a lens. By using
wavefront shaping to compensate for scattering, light was focused to a spot as
small as one tenth of the diffraction limit of the lens. We show both
experimentally and theoretically that it is the scattering medium, rather than
the lens, that determines the width of the focus. Despite the disordered
propagation of the light, the profile of the focus was always exactly equal to
the theoretical best focus that we derived.
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When using the bootstrap in the presence of measurement error, we must first
estimate the target distribution function; we cannot directly resample, since
we do not have a sample from the target. These and other considerations
motivate the development of estimators of distributions, and of related
quantities such as moments and quantiles, in errors-in-variables settings. We
show that such estimators have curious and unexpected properties. For example,
if the distributions of the variable of interest, $W$, say, and of the
observation error are both centered at zero, then the rate of convergence of an
estimator of the distribution function of $W$ can be slower at the origin than
away from the origin. This is an intrinsic characteristic of the problem, not a
quirk of particular estimators; the property holds true for optimal estimators.
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YOU are not part of the bet. YOU don't get to decide what is positive and what is negative. The bet was "10 things that he has done". I've provided 60. Many, think EVERYTHING he has done is positive. And whats more, the things YOU think are going to weaken our country, will actually make it stronger. But have you noticed Old Soul hasn't chimed in? You can carry his flag for him if you'd like, but YOU don't get to make the rules. He lost, I won, and I'd prefer a couple of pygmy goats. (some for sale near me) je me souviens ? |
... But it is also Minnie's and Pete's too! Yes, the grumpy captain may not look like Pete, but it is! Mickey and Minnie are the best characters, both of them are very sweet and likable. Interestingly, Minnie is more of a lady in this than what she usually is today and Mickey is less than considerate in this than he is now. Pete is still the same old meanie, but he looks a bit different. <br /><br />In this famous episode, on board a little steamboat, Mickey, Minnie and some side characters have a great deal of fun and a great deal of annoyances. Even in their first appearances, the three main characters are very developed. <br /><br />I quite like this episode, although overall I prefer the Mickey Mouse in the future. I like the animation, the steamboat and music theme, the clever gags - and of course, Mickey and Minnie! <br /><br />Like many early cartoons, this is very random, Walt came up with a very basic plot and just added gags to "gear" it along. There is also a parrot side character who is very annoying and rather unnecessary. These are the things I do not like about it. <br /><br />Another interesting thing about this episode, that a colour version has not been made for it (or if it has, I've never heard about it)! <br /><br />Anyone who just enjoys Mickey Mouse and Disney will enjoy this. |
This paper describes preliminary work in the recent promising approach of
generating synthetic training data for facilitating the learning procedure of
deep learning (DL) models, with a focus on aerial photos produced by unmanned
aerial vehicles (UAV). The general concept and methodology are described, and
preliminary results are presented, based on a classification problem of fire
identification in forests as well as a counting problem of estimating number of
houses in urban areas. The proposed technique constitutes a new possibility for
the DL community, especially related to UAV-based imagery analysis, with much
potential, promising results, and unexplored ground for further research.
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"Maléfique" is an example of how a horror film can be effective with nothing more than a well-executed plot and a lot of heart. Its cast doesn't have recognized names, it doesn't have a big budget and it certainly lacks in the visual effects aspect; but it compensates all that with an intelligent and well-written script, an effective cast and the vision of a director focused more on telling the story than in delivering cheap thrills. Eric Valette may not be a well-know name yet, but with "Maléfique", his feature length debut, he proves he is at the level of contemporaries like Jeunet, Gans or Aja.<br /><br />The film is the story of four prisoners in a cell, four different men with very different backgrounds but with one single goal: to get out. Carrère (Gérald Laroche) gets imprisoned after being declared guilty of a multi-millionaire fraud; his cell-mates, the violent Marcus (Clovis Cornillac), the intellectual Lassalle (Philippe Laudenbach) and the mentally challenged Pâquerette (Dimitri Rataud), are all convicted for murder and give Carrère a cold welcome. Their personalities will clash as Carrère discovers an ancient book detailing how a former prisoner escaped using black magic.<br /><br />Written by Alexandre Charlo and Franck Magnier, "Maléfique" is a great mix of dark fantasy and horror in a way very reminiscent of Clive Barker's stories. The movie's strongest point is the way it builds up the characters, they are all have very complex and different personalities and a lot of the tension and suspense comes from their constant clash of personalities. The story's supernatural element is very well-handled and overall gives the film the feeling of reading a Gothic novel. Despite being a movie about four men locked in a room, the movie never gets boring or tiresome and in fact, the isolation of the group increases the feeling of distrust, claustrophobia, and specially, paranoia.<br /><br />Director Eric Valette makes a great use of atmosphere, mood and his cast to give life to the plot. Despite its obvious lack of budget, he has crafted a brilliant film that feels original, fresh and very attractive. His subtle and effective camera-work helps to make the film dynamic despite its single location, and the slow pace the film unfolds is excellent to create the heavy atmosphere of isolation and distrust the movie bases its plot. The very few displays of special effects are very well-done and Valette trades quantity for quality in the few but terrific scenes of gore.<br /><br />The characters are what make this film work, and the cast definitely deserves some of the credit. Gérald Laroche is excellent as Carrère, a man at first sight innocent, but who hides a dark past. Philippe Laudenbach and Dimitri Rataud are very effective too, specially Rataud in his very demanding role. However, is Clovis Cornillac who steal the show with his performance as Marcus, a violent and disturbed man who deep inside only wants to be himself. The characters are superbly developed and the cast makes the most of them.<br /><br />The movie is terrific, but it is not without its share of flaws. Of course, the most notorious one is its the low-budget. Some of the CGI-effects are a bit poor compared to the effective make-up and prosthetics used in other scenes, however, it is never too bad for it. Probably the bad thing about "Maléfique" is that it seems to lose some steam by the end when it focuses on the supernatural black magic rather than in the characters, not too much of a bad thing but the ending may seem weak from that point of view.<br /><br />Anyways, "Maléfique" is another one of those great horror films coming out from France lately, and one that deserves to have more recognition. Valette is definitely a talent to follow as this modest (albeit complex) tale of the supernatural is prove enough of his abilities. Personally, this film is a new favorite. 8/10 |
This paper describes a lattice version of the Skyrme model in 2+1 and 3+1
dimensions. The discrete model is derived from a consistent discretization of
the radial continuum problem. Subsequently, the existence and stability of the
skyrmion solutions existing on the lattice are investigated. One consequence of
the proposed models is that the corresponding discrete skyrmions have a high
degree of stability, similar to their continuum counterparts.
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Over a Cohen-Macaulay ring we consider two extensions of the maximal
Cohen-Macaulay modules from the viewpoint of definable subcategories, which are
closed under direct limits, direct products and pure submodules. After
describing these categories, we compare them and consider which properties they
inherit from the maximal Cohen-Macaulay modules. We then consider some further
properties of these classes and how they interact with the entire module
category.
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Motivated by the complex behavior of the frustrated magnet $\beta$-TeVO$_4$,
we study an anisotropic Heisenberg model for coupled spin-$1/2$ zigzag chains.
Using cluster mean field approach to capture quantum correlations we find, upon
reducing temperature in the absence of applied field, (i) a partially ordered
state, (ii) a collinear antiferromagnetic phase, and (iii) an elliptical spiral
state characterized by finite vector chirality. For finite fields, we find
metamagnetic response close to saturation magnetization. We show via explicit
calculations that the quadrupolar order parameter is finite in the metamagnetic
regime. The exchange parameters reported in the ab-initio study of
$\beta$-TeVO$_4$ are used in our study. We compare our results with those
reported in recent experiments on $\beta$-TeVO$_4$ and highlight similarities
as well as differences between experimental results and our cluster mean field
calculations.
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We consider the evolution of $N$ bosons interacting with a repulsive short
range pair potential in three dimensions. The potential is scaled according to
the Gross-Pitaevskii scaling, i.e. it is given by $N^2V(N(x_i-x_j))$. We
monitor the behavior of the solution to the $N$-particle Schr\"odinger equation
in a spatial window where two particles are close to each other. We prove that
within this window a short scale interparticle structure emerges dynamically.
The local correlation between the particles is given by the two-body zero
energy scattering mode. This is the characteristic structure that was expected
to form within a very short initial time layer and to persist for all later
times, on the basis of the validity of the Gross-Pitaevskii equation for the
evolution of the Bose-Einstein condensate. The zero energy scattering mode
emerges after an initial time layer where all higher energy modes disperse out
of the spatial window. We can prove the persistence of this structure up to
sufficiently small times before three-particle correlations could develop.
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The length of the bulb should be stated in description.
If I had known the length of the bulb I would have known it would not fit in my path lights . Because I had to wait for electrician to install when I found out they would not fit I had missed the return deadline . |
Collector surface area is relatively small
I like these, and we bought two sets, but when the day is what the weather folks call "partly cloudy," the lights are pretty dim. They work as described, but if I had it to do over, we'd purchase some with a bigger collector surface area - even if the appearance proved unappetizing. At night that flaw would not be visible anyhow. UPDATE It's been 90 days and all the lights are dead. Lowered rating. |
The ray-based 4D light field representation cannot be directly used to
analyze diffractive or phase--sensitive optical elements. In this paper, we
exploit tools from wave optics and extend the light field representation via a
novel "light field transform". We introduce a key modification to the
ray--based model to support the transform. We insert a "virtual light source",
with potentially negative valued radiance for certain emitted rays. We create a
look-up table of light field transformers of canonical optical elements. The
two key conclusions are that (i) in free space, the 4D light field completely
represents wavefront propagation via rays with real (positive as well as
negative) valued radiance and (ii) at occluders, a light field composed of
light field transformers plus insertion of (ray--based) virtual light sources
represents resultant phase and amplitude of wavefronts. For free--space
propagation, we analyze different wavefronts and coherence possibilities. For
occluders, we show that the light field transform is simply based on a
convolution followed by a multiplication operation. This formulation brings
powerful concepts from wave optics to computer vision and graphics. We show
applications in cubic-phase plate imaging and holographic displays.
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I've now watched all four Bo Derek vehicles directed by her husband, John; all are quite terrible, of course, but this is certainly the pits. Featuring the usual flimsy plot, bad scripting by the director, naturally and acting, not to mention gratuitous nudity by the star, it deals with her losing much older husband Anthony Quinn (she accepts his shotgun suicide by saying he had always admired Hemingway!!) but who continues to appear and talk to her. In fact, he wants to come back in another, younger body
but actually does so only in the very last scene! Derek is lovely as always, and still playing naïve(!) especially during a muddled mid-section which has her pursued by a hired killer at a spa. Quinn, too, is typically larger-than-life (read: hammy) here, but this easily constitutes his nadir; besides, for much of the duration, he acts from behind a piece of shiny plastic (presumably suggesting his being in some sort of limbo)! His 'replacement', then, is obviously a handsome-looking stud who hasn't a lick of talent or even personality. Also featured in the cast are Hollywood veterans Don Murray (as Quinn's best friend and Bo's business consultant) and Julie Newmar (as Quinn's guardian angel in the afterlife) plus a surprising cameo appearance by billionaire Donald Trump (who presumably needed this on his resume')! It also goes without saying that John Derek was his own cinematographer on the film, that the end credits are filled with useless (and corny) expressions of gratitude to the many people who lent a helping hand, and that GHOSTS CAN'T DO IT swept the board at the 1990 Razzie Awards! |
Excitons in semiconductors, bound pairs of excited electrons and holes, can
form the basis for new classes of quantum optoelectronic devices. A van der
Waals heterostructure built from atomically thin semiconducting transition
metal dichalcogenides (TMDs) enables the formation of excitons from electrons
and holes in distinct layers, producing interlayer excitons with large binding
energy and a long lifetime. Employing heterostructures of monolayer TMDs, we
realize optical and electrical generation of long-lived neutral and charged
interlayer excitons. We demonstrate the transport of neutral interlayer
excitons across the whole sample that can be controlled by excitation power and
gate electrodes. We also realize the drift motion of charged interlayer
excitons using Ohmic-contacted devices. The electrical generation and control
of excitons provides a new route for realizing quantum manipulation of bosonic
composite particles with complete electrical tunability.
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We propose a novel realization of spontaneous supersymmetry breaking in de
Sitter vacuum by F- and D-terms in $N=1$ four-dimensional supergravity coupled
to a chiral superfield with $SU(1,1)/U(1)$ target space. Our construction
features gauged $U(1)_R$ symmetry rotating the chiral scalar field by a phase.
Both SUSY and R-symmetry can be spontaneously broken, and for two particular
parameter choices we obtain no-scale supergravity with positive tunable
cosmological constant.
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In this work, a gray level indicator based non-linear telegraph diffusion
model is presented for multiplicative noise removal problem. Most of the
researchers focus only on diffusion equation-based model for multiplicative
noise removal problem. The suggested model uses the benefit of the combined
effect of diffusion equation as well as the wave equation. Wave nature of the
model preserves the high oscillatory and texture pattern in an image. In this
model, the diffusion coefficient depends not only on the image gradient but
also on the gray level of the image, which controls the diffusion process
better than only gradient-based diffusion models. Moreover, we prove the
well-posedness of the present model using Schauder fixed point theorem.
Furthermore, we show the superiority of the proposed model over a recently
developed method on a set of gray level test images which are corrupted by
speckle noise.
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I can hardly call this a great film but it is entertaining. In my case I, at the time this film was released, was the same age as some of the junior campers in the film. For me watching this film brings back the memories of my camp years. While some of the pranks that takes place in this movie, like carrying the camp director out in his bed and leaving him on the side of a road, strung up in the trees or out on a lake, are a bit over the top some of the other pranks are not. When I went to camp the campers and counselors pulled similar stunts such as running underwear up the flag pole, canoe battles and boys raiding the girls cabin. As I grew older I realized these night raids to the girls cabin that I participated in were carefully orchestrated by the counselors so that we wouldn't find the girls in embarrassing situations but at the time I thought it was real and it was fun. That's what MEATBALLS (MB) is. <br /><br />MB captures not only the scenic beauty of camp surroundings but the beauty of being young and carefree. MB give a great example of pre-teens, teens and young adults living their summer with no concerns other than guys hooking up with girls and girls hooking up with guys and booth having as much fun as they can before they head back to junior high & high school and college. The opening title song that goes "Are you ready for the summer?...no more homework no more books, no more teachers dirty looks..." describes exactly how summer is viewed by school kids. <br /><br />I personally enjoyed the two campers Spaz and Fink. What boy, nerd or jock, didn't spend all camp trying to cozy up to some pretty girl camper? What guy didn't want to be accepted by the other campers and counselors? While these two characters are somewhat over the top I bet everybody who watches the film can't help but to like these two guys. These two characters are a mix of Charlie Brown from PEANUTS and Jack Tripper & Larry Dallas from THREE'S COMPANY. I would bet that most viewers even cheer for Spaz in the egg carrying competition and for Fink as he attempts to "beat the stomach" in the hot dog eating contest. <br /><br />Lastly, this movie had normal looking kids and counselors. No super models for counselors or campers that wore trendy clothing. It is fun to just kick back and watch this film and remember when life was as fun as this movie. |
Sound absorption is an important technological task in machine-building and
civil engineering. Porous materials are traditionally used for these purposes,
as they are neither ignitable nor hygroscopic and thus suitable for noise
oppression, first of all in means of transportation. Absorption of acoustic
oscillation energy in porous metals occurs mainly due to viscous friction. A
theoretical description of the process of energy viscous dissipation in a
porous media on basis of Rayleigh classical model is given in paper [1],
whereas the modern level of theory is set forth in Johnson-Champoux-Allard
model [2]. Attempts of utilizing aluminum foam as the cheapest porous metal for
sound absorption are related to forming of the open porous structure by rolling
[3] or by heat treatment [4]. However, the sound absorption ratio of metal foam
presented in these papers does not rise over 80%, whereas it reaches 99.9% in a
wide frequency range when we take conventional sound-absorption materials (i.e.
glass-wool). The problem of foamed metal consists of considerable reflection of
acoustic waves from the surface.
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Ingredients on Amazon omit alot
I'm disappointed in the ingredients on the actual product including slot that is omitted in the ingredient list on Amazon. I've only tried the mango this far, and while good earth claims to use no artificial flavors or sweeteners, it tastes like there's an artificial sweetener in there. Kind of powdery... I drink alot of things that contain stevia, and the sweetener in the tea doesnt taste the same. I'll probably drink just because Amazon charges shipping for returns. But I wont be re ordering. I try to stay away from ingredients such as natural flavor. The mango tea lists natural flavor 2x on the packaging. I haven't tried the others yet so I hope they're better. |
The relationship between mesonic correlations and quantum condensates in the
quark matter phase diagram is explored within a quantum field theoretical
approach of the Nambu and Jona-Lasinio (NJL) type. Mean-field values in the
scalar meson and diquark channels are order parameters signalling the
occurrence of quark condensates, entailing chiral symmetry breaking (chi SB)
and color superconductivity (2SC) in quark matter. We investigate the spectral
properties of scalar and pseudoscalar meson excitations in the phase diagram in
Gaussian approximation and show that outside the chi SB region where the pion
is a zero-width bound state, there are two regions where it can be considered
as a quasi-bound state with a lifetime exceeding that of a typical heavy-ion
collision fireball: (A) the high-temperature chi SB crossover region at low
densities and (B) the high-density color superconducting phase at temperatures
below 100 MeV.
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Undoped cuprates have long been considered to be antiferromagnetic
insulators. In this article, however, we report that superconductivity is
achieved in undoped T'-RE2CuO4 (RE = Pr, Nd, Sm, Eu, and Gd). Our discovery was
performed by using metal-organic decomposition (MOD), an inexpensive and
easy-to-implement thin-film process. The keys to prepare the superconducting
films are firing with low partial-pressure of oxygen and reduction at low
temperatures. The highest Tc of undoped T'-RE2CuO4 is over 30 K, substantially
higher than "electron-doped" analogs. Remarkably, Gd2CuO4, even the derivatives
of which have not shown superconductivity so far, gets superconducting with
Tconset as high as ~ 20 K. The implication of our discovery is briefly
discussed.
|
Maybe not for large breasts
The idea of this product is great....for smaller breasts. I'm 32 DDD and I would for sure not trust these for an extended period of time. It slowly started to pull away from my skin minutes after application. I'm too scared to wear these out in public to know for sure but it's a no go for me. |
Let $n\in {\Bbb N}$. An element $a\in R$ has generalized n-strongly Drazin
inverse if there exists $x\in R$ such that $xax=x, x\in comm^2(a), a^n-ax\in
R^{qnil}.$ For any $a,b\in R$, we prove that $1-ab$ has generalized n-strongly
Drazin inverse if and only if $1-ba$ has generalized n-strongly Drazin inverse.
Extensions in Banach algebra are also obtained.
|
The story the news media should have been reporting all along was that Veresen NEVER had the money to complete this project. Our screwed-up permit system allows speculators to victimize whole communities and landowners. We should not allow anyone to seek permits involving eminent domain till they prove they have the funds to build. Veresen thought they'd get everything in place and then sell the whole thing to China. Well China decided to cut a huge deal and have already started building their pipeline to Russia. Putin gets the last laugh on all the politicians here that thought a west coast terminal would stop that from happening. The local politicians think that family wage jobs trump the environment, health, safety, and landowners rights. That is just plain foolish. It's not why FERC shot down the permit, but it should have been. Clean water, air, and climate change should have been the reason, but most of all the reason should have been the earthquake/tsunami zone! |
I suppose most Liberals are so used to lying about their real agenda, as evidenced by the numerous flip-flops that Liberals have employed, once securely elected with a majority, that it's understandable that they expect politicians from other parties to use the same lying, sneaky, deceptive and duplicitous standards when communicating with the public.
For what it's worth, I'm willing to give Scheer the benefit of the doubt on his promise not to reopen socially divisive debates on abortion or gay rights, as I've yet to see any evidence that he would betray his words to the public. Harper kept the socially conservative wing of the party in tow for years.
Liberals, on the other hand, especially here in Ontario, have abused trust with the public on numerous occasions, so much so that the public has become trained not to trust a single word that they promise on the campaign trail. One should remember that this doesn't necessarily mean that other politicians will be equally duplicitous. |
Rather than call you a liar, I'll just post a link to HART's helicopter footage of this "most densely populated" ag land.
https://www.youtube.com/watch?v=opJzRWWVDdw
And if you've been following a little closer, you'd know about the luxury towers and boutique hotels that developers are planning on fulfilling their TOD requirement with "cash gifts" to the city instead of actual affordable TOD. |
Pretty sure didn't do much
I took it as instructed. After a couple hours I felt my face flush a little bit, nothing visually noticeable, but I felt it for a bit. I did feel a little bit "fuller" down there, but didn't exactly made it hard. I don't have problems getting an erection, so I went and got one on my own, I barely noticed any difference, just a regular one, lasted the same amount, and felt the same. There might be a difference for people with ED, but I didn't notice anything myself. |
...This would be the worst film i'd ever seen. Hmmm, OK maybe tied with Boogeyman then. Awful, truly awful.<br /><br />I had low expectations and it failed to meet them! I honestly cant think of one good thing. so here are the worst points...<br /><br />1. THE ACTING 2. THE PLOT 3. THE CGI (Xbox 360 has better graphics....seriously) 4. THE PLOT 5. THE DIALOGUE and finally.... 6. THE PLOT <br /><br />There are so many unanswered questions, Did they make a 2:32 hour long movie then realize they hadn't put Lex Luthor and Superman in a scene together and were forced to settle for the 3 minute bit or did they actually think no-one would notice that the main hero and villain have less screen time together than Superman's son and the henchman he kills?!!<br /><br />Was half the budget spent on persuading Kevin Spacey to do it?<br /><br />When Superman goes to hospital, why don't the doctors ask "What the F*** do you want us to do?! He's a F***ing alien! We don't know jack about his anatomy!"? <br /><br />What happened in the 5 years Superman was away to cause technology to advance 28 years? <br /><br />Where the people who wrote good reviews watching the same movie?<br /><br />and finally, Why? Just, Why? <br /><br />BTW, for those of you wondering how come Superman could lift an entire continent of krypyonite, i think i've figured it out...<br /><br />...since superman is unaffected by the kryptonite till he sees something green in the rocks, it is clearly all in his head. therefore the continent thing is just him suppressing his fear of shiny green rock....<br /><br />either that or the writers are slack-jawed half-wits who didn't think that was a fairly obvious mistake. |
We present a systematic study on the influence of epitaxial strain and hole
concentration on the magnetic anisotropy in (Ga,Mn)As at 4.2 K. The strain was
gradually varied over a wide range from tensile to compressive by growing a
series of (Ga,Mn)As layers with 5% Mn on relaxed graded (In,Ga)As/GaAs
templates with different In concentration. The hole density, the Curie
temperature, and the relaxed lattice constant of the as-grown and annealed
(Ga,Mn)As layers turned out to be essentially unaffected by the strain.
Angle-dependent magnetotransport measurements performed at different magnetic
field strengths were used to probe the magnetic anisotropy. The measurements
reveal a pronounced linear dependence of the uniaxial out-of-plane anisotropy
on both strain and hole density. Whereas the uniaxial and cubic in-plane
anisotropies are nearly constant, the cubic out-of-plane anisotropy changes
sign when the magnetic easy axis flips from in-plane to out-of-plane. The
experimental results for the magnetic anisotropy are quantitatively compared
with calculations of the free energy based on a mean-field Zener model. An
almost perfect agreement between experiment and theory is found for the
uniaxial out-of-plane and cubic in-plane anisotropy parameters of the as-grown
samples. In addition, magnetostriction constants are derived from the
anisotropy data.
|
[Don’t get me wrong: I am strongly in favour of educating and raising awareness. My mother, Julie Damm, was a teacher. Her mother, Irene Akiwenzie, was a teacher. I have spent a huge amount of my life speaking in schools and universities and working in various ways to live up to my ancestors’ name, Kegedonce, “little orator.”]
There's a bit of a problem here:
[Kateri Akiwenzie-Damm is an Anishinaabe writer of mixed ancestry]
https://en.wikipedia.org/wiki/Kateri_Akiwenzie-Damm
Normally, that would be of absolutely no consequence to me...but since Kateri makes it one, then best she judge herself before judging others.
Now, getting back to who can play the Blues...and indigenous bands doing Hip Hop... |
Large-scale practical applications of fullerene (C60) in nanodevices could be
significantly facilitated if the commercially-available micrometer-scale raw
C60 powder were further processed into a one-dimensional (1D) nanowire-related
polymer displaying covalent bonding as molecular interlinks and resembling
traditional important conjugated polymers. However, there has been little study
thus far in this area despite the abundant literature on fullerene. Here we
report the synthesis and characterization of such a C60-based nanowire polymer,
(-C60TMB-)n, where TMB=1,2,4-trimethylbenzene, which displays a well-defined
crystalline structure, exceptionally large length-to-width ratio and excellent
thermal stability. The material is prepared by first growing the corresponding
nanowire through a solution phase of C60 followed by a topochemical
polymerization reaction in the solid state. Gas chromatography, mass
spectrometry and 13C nuclear magnetic resonance evidence is provided for the
nature of the covalent bonding mode adopted by the polymeric chains.
Theoretical analysis based on detailed calculations of the reaction energetics
and structural analysis provides an in-depth understanding of the
polymerization pathway. The nanopolymer promises important applications in
biological fields and in the development of optical, electrical, and magnetic
nanodevices.
|
Convolutional architectures have recently been shown to be competitive on
many sequence modelling tasks when compared to the de-facto standard of
recurrent neural networks (RNNs), while providing computational and modeling
advantages due to inherent parallelism. However, currently there remains a
performance gap to more expressive stochastic RNN variants, especially those
with several layers of dependent random variables. In this work, we propose
stochastic temporal convolutional networks (STCNs), a novel architecture that
combines the computational advantages of temporal convolutional networks (TCN)
with the representational power and robustness of stochastic latent spaces. In
particular, we propose a hierarchy of stochastic latent variables that captures
temporal dependencies at different time-scales. The architecture is modular and
flexible due to the decoupling of the deterministic and stochastic layers. We
show that the proposed architecture achieves state of the art log-likelihoods
across several tasks. Finally, the model is capable of predicting high-quality
synthetic samples over a long-range temporal horizon in modeling of handwritten
text.
|
Using deep learning models to diagnose cancer from histology data presents
several challenges. Cancer grading and localization of regions of interest
(ROIs) in these images normally relies on both image- and pixel-level labels,
the latter requiring a costly annotation process. Deep weakly-supervised object
localization (WSOL) methods provide different strategies for low-cost training
of deep learning models. Using only image-class annotations, these methods can
be trained to classify an image, and yield class activation maps (CAMs) for ROI
localization. This paper provides a review of state-of-art DL methods for WSOL.
We propose a taxonomy where these methods are divided into bottom-up and
top-down methods according to the information flow in models. Although the
latter have seen limited progress, recent bottom-up methods are currently
driving much progress with deep WSOL methods. Early works focused on designing
different spatial pooling functions. However, these methods reached limited
localization accuracy, and unveiled a major limitation -- the under-activation
of CAMs which leads to high false negative localization. Subsequent works aimed
to alleviate this issue and recover complete object. Representative methods
from our taxonomy are evaluated and compared in terms of classification and
localization accuracy on two challenging histology datasets. Overall, the
results indicate poor localization performance, particularly for generic
methods that were initially designed to process natural images. Methods
designed to address the challenges of histology data yielded good results.
However, all methods suffer from high false positive/negative localization.
Four key challenges are identified for the application of deep WSOL methods in
histology -- under/over activation of CAMs, sensitivity to thresholding, and
model selection.
|
HM Cancri is a candidate ultracompact binary white dwarf with an apparent
orbital period of only 5.4 minutes, as suggested by X-ray and optical
light-curve modulations on that period, and by the absence of longer-period
variability. In this Letter we present Keck-I spectroscopy which shows clear
modulation of the helium emission lines in both radial velocity and amplitude
on the 5.4-minute period and no other. The data strongly suggest that the
binary is emitting He I 4471 from the irradiated face of the cooler, less
massive star, and He II 4686 from a ring around the more massive star. From
their relative radial velocities, we measure a mass ratio q=0.50+/-0.13. We
conclude that the observed 5.4-minute period almost certainly represents the
orbital period of an interacting binary white dwarf. We thus confirm that HM
Cnc is the shortest-period binary star known: a unique test for stellar
evolution theory, and one of the strongest known sources of gravitational waves
for the Laser Interferometer Space Antenna (LISA).
|
With applications in the Kudla program in mind we employ singular theta lifts
for the reductive dual pair $U(p,q)\times U(1,1)$ to construct two different
kinds of Green forms for codimension $q$-cycles in Shimura varieties associated
to unitary groups. We establish an adjointness result between our singular
theta lift and the Kudla-Millson lift. Further, we compare the two Greens forms
and obtain modularity for the generating function of the difference of the two
Green forms. Finally, we show that the Green forms obtained by the singular
theta lift satisfy an eigenvalue equation for the Laplace operator and conclude
that our Green forms coincide with the ones constructed by Oda and Tsuzuki by
different means.
|
We derive from an eigendielectric displacement vector summation approach the
frequency order of the polar phonon modes and the polarization-dependent
structure of the reststrahlen bands within the monoclinic plane of materials
with monoclinic crystal symmetry. We show that phonon modes occur in associated
pairs of transverse and longitudinal optical modes, and that pairs either
belong to inner or outer phonon modes. Inner mode pairs are nested within outer
mode pairs. Outer mode pairs cause polarization-dependent reststrahlen bands.
Inner mode pairs cause polarization-independent reststrahlen bands. The
directional limiting frequencies within the Born-Huang approach are bound to
within outer mode regions not occupied by inner mode pairs. Hence, an unusual
phonon mode order can occur where both lower-frequency as well as
upper-frequency limits for the directional modes can be both transverse and/or
longitudinal modes. We exemplify our findings using experimental data for the
recently unraveled case of monoclinic symmetry $\beta$-Ga$_2$O$_3$ [Phys. Rev.
B~\textbf{93}, 125209 (2016)] and demonstrate excellent agreement with results
from density functional theory calculations.
|
In this paper, we study a simple and generic framework to tackle the problem
of learning model parameters when a fraction of the training samples are
corrupted. We first make a simple observation: in a variety of such settings,
the evolution of training accuracy (as a function of training epochs) is
different for clean and bad samples. Based on this we propose to iteratively
minimize the trimmed loss, by alternating between (a) selecting samples with
lowest current loss, and (b) retraining a model on only these samples. We prove
that this process recovers the ground truth (with linear convergence rate) in
generalized linear models with standard statistical assumptions.
Experimentally, we demonstrate its effectiveness in three settings: (a) deep
image classifiers with errors only in labels, (b) generative adversarial
networks with bad training images, and (c) deep image classifiers with
adversarial (image, label) pairs (i.e., backdoor attacks). For the well-studied
setting of random label noise, our algorithm achieves state-of-the-art
performance without having access to any a-priori guaranteed clean samples.
|
We analyze photometric data in V and I for the globular cluster (GC) systems
in five of the giant ellipticals in the Coma Cluster: NGC 4874, 4881, 4889,
4926, and IC 4051. We find that the GC luminosity functions are quite similar
to one another, with a turnover derived from a composite sample of more than
9,000 GCs at V = 27.71 +- 0.07 (M_V = -7.3). Both a simple Gaussian curve and
an evolved Schechter function fit the bright half of the GCLF equally well,
though the Coma GCLF is broader and has a higher ``cutoff mass'' (M_c ~ 3 x
10^6 M_Sun) than in any of the Virgo giants. These five Coma members exhibit a
huge range in GC specific frequency, from a low of S_N = 0.7 for NGC 4881 up to
12 for IC 4051 and NGC 4874. No single formation scenario appears able to
account for these differences in otherwise-similar galaxies. The supergiant NGC
4874 has the richest globular cluster system known, probably holding more than
30,000 clusters; its true extent is not yet determined and may extend well out
into the Coma potential well. For the three biggest GC systems (NGC 4874, 4889,
IC 4051), all three populations are dominated by red, metal-rich clusters.
Their metallicity distributions also may all have the normal bimodal form, with
the two sequences at the expected mean colors <V-I>(blue) = 0.98 and <V-I>(red)
= 1.15. However, the color distributions and relative numbers of metal-rich
clusters show intriguing counterexamples to a trend established by Peng et al.
2008 (ApJ 681, 197) for the Virgo galaxies. At the very highest-density and
most massive regimes represented by the Coma supergiants, formation of
metal-rich clusters seems to have been especially favored.
|
It is argued that galaxies like ours sustain their star formation by
transferring gas from an extensive corona to the star-forming disc. The
transfer is effected by the galactic fountain -- cool clouds that are shot up
from the plane to kiloparsec heights above the plane. The Kelvin-Helmholtz
instability strips gas from these clouds. If the pressure and the the
metallicity of the corona are high enough, the stripped gas causes a similar
mass of coronal gas to condense in the cloud's wake. Hydrodynamical simulations
of cloud-corona interaction are presented. These confirm the existence of a
critical ablation rate above which the corona is condensed, and imply that for
the likely parameters of the Galactic corona this rate lies near the actual
ablation rate of clouds. In external galaxies trails of HI behind individual
clouds will not be detectable, although the integrated emission from all such
trails should be significant. Parts of the trails of the clouds that make up
the Galaxy's fountain should be observable and may account for features in
targeted 21-cm observations of individual high-velocity clouds and surveys of
Galactic HI emission. Taken in conjunction with the known decline in the
availability of cold infall with increasing cosmic time and halo mass, the
proposed mechanism offers a promising explanation of the division of galaxies
between the blue cloud to the red sequence in the colour-luminosity plane.
|
Neural sequence-to-sequence models, particularly the Transformer, are the
state of the art in machine translation. Yet these neural networks are very
sensitive to architecture and hyperparameter settings. Optimizing these
settings by grid or random search is computationally expensive because it
requires many training runs. In this paper, we incorporate architecture search
into a single training run through auto-sizing, which uses regularization to
delete neurons in a network over the course of training. On very low-resource
language pairs, we show that auto-sizing can improve BLEU scores by up to 3.9
points while removing one-third of the parameters from the model.
|
"Porgy & Bess" was the very first movie my parents ever took me to see. Even at the tender age of 5 years, I was so greatly moved by the drama that I cried aloud at the screen "Crown, PLEASE don't take Bess!" I was fortunate enough to see the one TV broadcast of "Porgy & Bess" so many years ago and now all I have are the great memories (and the record album) to remember this wonderful, wonderful movie. I have been waiting and wishing and hoping that one day I might own a copy of "Porgy & Bess" - but it doesn't look like it will happen. What is the hold up? Obviously, there is enough public interest in this movie to warrant a release. After all these years, I remember it and it sure seems like I'm not alone. This movie is brimming with human emotion - jealousy, lust, anger, bravery, determination. "Porgy & Bess" is a buried gem that deserves to be brought forth into the light for a new audience to admire and an old audience to relish. |
OK me and a friend rented this a few days ago because we like to keep track of b-movies since we do them ourselves. Anyway, the cover contained blood and weird looking naked girls with fangs and stuff... and Tom Savini! There is just no way this movie can fail! Right? wrong!! It just seems like such a waste! There was really no story, the dialog was terrible (is anyone there? x 1000!!!), the characters were.. well, they really lacked any kind of personality... The effects were terrible.. and whats up with these long artsy shots of scared people running around doing nothing.. with extreme closeups of eyes and stuff? We were sitting the whole movie waiting for something... anything to happen... but no... "oh, here comes the nymphs! great! oh.. they're kissing... again... and now for the violence! OK... nothing really happens... again... oh, now they run around... and the closeups of eyes... again... oh, heres Tom Savini! Oh... he died... right... OK, maybe now something cool or even interesting will happen.. no.. oh! Cool! a severed head! the end... oh crap.." And finally, since i'm so full of myself.. i'll tell you this! Give me a van, six actors, a weird looking house, Tom Savini, a couple of naked girls with fangs and buckets of blood and i could make the coolest movie you've ever seen... I've made movies with zero budget in two days that has better effects, better acting and a better script than this... what is this Johannes guy doing?? Making cool movies is easy!It could have been so great... I'm really upset!! |
The Eastern Mediterranean Sea (EMS) is a poorly studied ultra-oligotrophic marine environment, dominated by small-size phyto- and bacterioplankton. Here, we describe the dynamics of a single annual cycle (2018-19) of phyto- and bacterioplankton (abundances, pigments and productivity) in relation to the physical and chemical conditions in the photic water column at an offshore EMS site (Station THEMO-2, [~]1,500m depth, 50km offshore). We show that phytoplankton biomass (as chlorophyll a), primary and bacterial productivity differed between the mixed winter (January-April) and the thermally stratified (May-December) periods. Prochlorococcus and Synechococcus numerically dominated the picophytoplankton populations, with each clade revealing different temporal and depth changes indicative to them, while pico-eukaryotes (primarily haptophytes) were less abundant, yet likely contributed significant biomass. Estimated primary productivity ([~]32 gC m-2 y-1) was lower compared with other well-studied oligotrophic locations, including the north Atlantic and Pacific (BATS and HOT observatories), the western Mediterranean (DYFAMED observatory) and the Red Sea, and was on-par with the ultra-oligotrophic South Pacific Gyre. In contrast, integrated bacterial production ([~]11 gC m-2 y-1) was similar to other oligotrophic locations. Phytoplankton seasonal dynamics were similar to those at BATS and the Red Sea, suggesting an observable effect of winter mixing in this ultra-oligotrophic location. These results highlight the ultra-oligotrophic conditions in the EMS and provide, for the first time in this region, a full-year baseline and context to ocean observatories in the region.
HighlightsO_LIBacterioplankton dynamics were assessed monthly in the Eastern Mediterranean Sea
C_LIO_LISmall-sized picophytoplankton numerically dominated the phytoplankton community
C_LIO_LISeasonal phytoplankton dynamics are similar to BATS and Red Sea, but not to HOT
C_LIO_LIAnnual primary productivity is among the lowest in the worlds oceans
C_LIO_LIBacterial to primary production ratio is higher than most oligotrophic seas
C_LI |
We give sharp upper bounds on the injectivity radii of complete hyperbolic
surfaces of finite area with some geodesic boundary components. The given
bounds are over all such surfaces with any fixed topology; in particular,
boundary lengths are not fixed. This extends the first author's result to the
with-boundary setting. In the second part of the paper we comment on another
direction for extending this result, via the systole of loops function.
|
We consider a class of Jacobi matrices with periodically modulated diagonal
in a critical hyperbolic ("double root") situation. For the model with
"non-smooth" matrix entries we obtain the asymptotics of generalized
eigenvectors and analyze the spectrum. In addition, we reformulate a very
helpful theorem from a paper of Janas and Moszynski in its full generality in
order to serve the needs of our method.
|
It's not often I feel compelled to give negative criticism of a film; after all I often feel the maxim, "if you don't have anything good to say don't say it at all," would be apt advice for the many naysayers we listen to everyday who nitpick at things we like. If it's all the same to you the reader though I feel compelled to point out that with the lone exception of Christopher Walken in a returning role as Gabriel this movie is pathetically HORRID. I say this to you to warn you in advance that even if you are a fan of Walken's deadpan delivery and style or liked the original "Prophecy" that you will be sorely dissapointed. If you buy it, return it. If you rent it, make sure it's only ninety-nine cents.<br /><br />What's wrong with this movie? A full list would take too long to read and would bore you to tears, but a short summary would be the following: the once rather crystalline clear picture of the relationship between angels and mortals of the first film is ripped to shreds. Gabriel is turned from the rather morbid right hand of God he once was (and in this role he is WICKEDLY funny in the first) to little more than a thug for heaven. Since Walken is so good at playing heavies (we all remember Frank White from "King of New York") he is still enjoyable but the supporting cast is an unmitigated and unconvincing mess of mortals and angels alike who couldn't buy a clue for 50 cents. If you can figure out the plot you're a smarter man than I. One gets the feeling we wander aimlessly from scene to scene just to move the film along to Walken's next big line. By the end of the movie you're actually wishing he'd blow his horn and make the walls of Jericho fall on the people who made this un-natural disaster.<br /><br />Bottom line - it's an insult to our intelligence that they made a sequel to this film in the first place. The original told the right story, answered the questions that should have been, and left alone the ones you were meant to ponder afterwards. There are no compelling reasons to follow these characters that was in the first - the priest who lost his faith, the little girl who kept the "big secret", the teacher who protected her children - even Lucifer himself was more interesting BY himself in the first film than all the other characters in the sequel put together. I feel sorry for anybody who sees this film and not the first because they'll probably never want to watch the original and that's a real tragedy. |
There is a growing interest in techniques for detecting whether a logic
specification is satisfied too easily, or vacuously. For example, the
specification "every request is eventually followed by an acknowledgment" is
satisfied vacuously by a system that never generates any requests. Vacuous
satisfaction misleads users of model-checking into thinking that a system is
correct.
There are several existing definitions of vacuity. Originally, Beer et al.
formalized vacuity as insensitivity to syntactic perturbation. However, this
definition is only reasonable for vacuity in a single occurrence. Armoni et al.
argued that vacuity must be robust -- not affected by semantically invariant
changes, such as extending a model with additional atomic propositions. They
show that syntactic vacuity is not robust for LTL, and propose an alternative
definition -- trace vacuity.
In this article, we continue this line of research. We show that trace
vacuity is not robust for branching time logic. We refine it to apply uniformly
to linear and branching time logic and to not suffer from the common pitfalls
of prior definitions. Our new definition -- bisimulation vacuity -- is a proper
non-trivial extension of both syntactic and trace vacuity. We discuss the
complexity of detecting bisimulation vacuity, and give efficient algorithms to
detect vacuity for several practically-relevant subsets of CTL*.
|
if this is awareness month then a big discussion about the gaping lack of help for the mentally ill or those with other hidden disabilities needs work, desperately. it's much easier dealing with a physical handicap.. help with a prosthesis, wheelchair, cane, etc. but that one person who is kind of a pain to be around, that is different or weird - that alienates people due to whatever..how do you help them? how do you prevent john and jane doe from disrespecting the disabled person with intentional slights, snide remarks.etc? my sister has a personality disorder and anxiety. being in public - very agitated, it's very stressful for her - we try to get her to engage with people -. i've watched her work up her nerve to try to converse with someone out and about and the reactions she gets are amazing - they would never literally turn their back on , or ignore a blind person who stumbles.
the fix must be education...it's won't be easy. not cut and dried and that's the real problem. |
You wrote this, which sounds to me as though you understand the Bible to be in the first place a complete authoritative book of instructions on how human beings should live if they wish to please God: "We have the manual and all the help we need is available to us to follow Christ and His commands as He Himself Wills." And "to follow commands" is to submit to them and to obey them.
If that's not what you mean, please forgive me for misunderstanding you. |
In this paper, considering a braided continuum soft-robot, whose radial
deformation is constrained but elongation is assumed, a quasi-Lagrangian model
is proposed that meets the Lagrangian models properties, including a well-posed
input matrix. Actuation is considered throughout three inner pressure cambers,
and torsional effects are neglected. The closed-form analytical model is
obtained using a scalar varying mass density field, previously neglected in the
literature, which produces on one hand a varying center of mass, which
generally does not lay in the backbone curve, and one the other hand a
coordinate-dependent inertial tensor. The Lagrangian approach enforces the
basic skew symmetric property, thus exhibiting passivity. The advantage of
dealing with all these effects together display the following distinct
features: \textit{i)} the Lagrangian soft-robot dynamic model is similar to the
Lagrangian rigid-robot case; \textit{ii)} the non-linear system is affine in
the control input; \textit{iii)} the continuum deformable body stands for a
segment of constant curvature, when interconnected with other segments of
different constant curvature each, would leads to a quasi-continuum
$n$-segments variable curvature soft-robot, yet preserving the aforementioned
previous features of one segment. \redc{Representative simulations and videos
are shown, in open- and closed-loop.
|
This movie is Wonderful! I can watch it again and again. Robin hood is Perfectly cast, and Marian is beautiful. I personally think Marian's German man is the funniest character, along with Latrine and the Sheriff! While space balls got boring and stupid after a while, this one always keeps your interest! W O N D E R F U L This was a great film, and never gets boring. A great cast is in the roles, and it is spoofed perfectly, and makes so much sense, and can be watched again and again! You will love this film if you'll only watch it, except if you hate comedy, or does not think Robin Hood should be tampered with. But this old story gets boring, and this movie gives it a great new flavor! |
Deep generative models have shown great promise when it comes to synthesising
novel images. While they can generate images that look convincing on a
higher-level, generating fine-grained details is still a challenge. In order to
foster research on more powerful generative approaches, this paper proposes a
novel task: generative modelling of 2D tree skeletons. Trees are an interesting
shape class because they exhibit complexity and variations that are well-suited
to measure the ability of a generative model to generated detailed structures.
We propose a new dataset for this task and demonstrate that state-of-the-art
generative models fail to synthesise realistic images on our benchmark, even
though they perform well on current datasets like MNIST digits. Motivated by
these results, we propose a novel network architecture based on combining a
variational autoencoder using Recurrent Neural Networks and a convolutional
discriminator. The network, error metrics and training procedure are adapted to
the task of fine-grained sketching. Through quantitative and perceptual
experiments, we show that our model outperforms previous work and that our
dataset is a valuable benchmark for generative models. We will make our dataset
publicly available.
|
The well-known Kolmogorov compactness criterion is extended to the case of
variable exponent Lebesgue spaces $L^{p(\cdot)}({\Omega})$, where $\Omega$ is a
bounded open set in $\mathbb R^n$ and $p(\cdot)$ satisfies some "standard"
conditions. Our final result should be called Kolmogorov-Tulajkov Sudakov
compactness criterion, since it includes the case $p_-=1$ and requires only the
"uniform" condition.
|
I don't know what it is with these Brady kids. First, Barry Williams publicly brags about having sexy with his TV sister, Maureen McCormick, then about dating his TV mom, Florence Hederson. Then, Susan (Cindy) Olsen does music for a bunch of porno movies. Then Mike (Bobby) Lookinland gets in trouble for drunk driving. Finally, Maureen (Marcia) McCormick and Eve (Jan) Plum might have had a little same-sex fling on the side. Now, Christopher (Peter) Knight is pursued by a beautiful young model in her early-20s during his stint on "The Surreal Life", which at first was fun to watch, and now they are married and in a very volatile and hostile relationship. The last episode, where she posed for a bunch of nude photographs with another naked girl for a scrapbook to give to Christopher for his birthday, was not a good move on her part. And he dealt with it in a very mature fashion, just picking up and leaving to clear his head. I think he was always bowing to her every need and now he's finally taking a stand. And I hate to say it, but I think she abuses him, verbally. The way she was torturing him for an engagement ring and the way she reams him for every little thing. Also she talks openly about having flings with other women and it is obvious she still sleeps around on him with women and men, which is not something any self-respecting human being should do when already married to someone. If this were a man talking down to his wife like that, and going out every night partying and having sex with other people, everyone would be rallying behind the wife to leave him. Why should this be any different. What started out as a cute little crush on another reality show blossomed into a huge disaster. Adrianne, as beautiful as she is, is like another Britney Spears and Lindsay Lohan, clearly in need of some therapy because she cries like a baby over so many silly things. I feel sorry for her, but Chris needs to rid himself of her, because he is a good man who cannot afford to be humiliated like this. |
Direct detection experiments have set increasingly stringent limits on the
cross section for spin-independent dark matter-nucleon interactions. In
obtaining such limits, experiments primarily assume the standard halo model
(SHM) as the distribution of dark matter in our Milky Way. Three astrophysical
parameters are required to define the SHM: the local dark matter escape
velocity, the local dark matter density and the circular velocity of the sun
around the center of the galaxy. This paper studies the effect of the
uncertainties in these three astrophysical parameters on the XENON1T exclusion
limits using the publicly available DDCalc code. We compare limits obtained
using the widely assumed escape velocity from the RAVE survey and the newly
calculated escape velocity by Monari $et$ $al.$ using Gaia data. Our study
finds that the astrophysical uncertainties are dominated by the uncertainty in
the escape velocity (independent of the best fit value) at dark matter masses
below 6 GeV and can lead to a variation of nearly 6 orders of magnitude in the
exclusion limits at 4 GeV. Above a WIMP mass of 6 GeV, the uncertainty becomes
dominated by the local dark matter density, leading to uncertainties of factors
of $\sim$10 (3) at 6 (15) GeV WIMP mass in the exclusion limits. Additionally,
this work finds that the updated best fit value for the escape velocity based
on Gaia data leads to only very minor changes to the effects of the
astrophysical uncertainties on the XENON1T exclusion limits.
|
Ab-initio calculations within Density Functional Theory combined with
experimental Raman spectra on cluster-beam deposited pure carbon films provide
a consistent picture of sp-carbon chains stabilized by sp^3 or sp^2
terminations, the latter being sensitive to torsional strain. This unexplored
effect promises many exciting applications since it allows one to modify the
conductive states near the Fermi level and to switch on and off the on-chain
pi-electron magnetism.
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We propose a renormalizable theory with minimal particle content and
symmetries, that successfully explains the number of Standard Model (SM)
fermion families, the SM fermion mass hierarchy, the tiny values for the light
active neutrino masses, the lepton and baryon asymmetry of the Universe, the
dark matter relic density as well as the muon and electron anomalous magnetic
moments. In the proposed model, the top quark and the exotic fermions do
acquire tree-level masses whereas the SM charged fermions lighter than the top
quark gain one-loop level masses. Besides that, the tiny masses for the light
active neutrino are generated from an inverse seesaw mechanism at one-loop
level.
|
The first thing you meet when you study fascism is ostracism:because this" philosophy " is a fake one,there's a need to use scapegoats to assess the "thought".Ettore Scola's movie,probably his masterpiece, focuses on the outcasts,the scapegoats of the regime.<br /><br />Of the historical event (Hitler and Mussolini's alliance),we will see almost nothing:some military march,some garlands,some scattered voices ..Our two heroes are not invited for the feast of virility. "Genius is essentially masculine" :this is the golden rule Antonietta (a never better Sophia Loren)embroidered on her cushion;Antonietta ,whose world amounts to her kitchen,whose pride is her offsprings .At the beginning of the movie,she's a victim of this hypermacho world,but she does not realize it.She thinks she should be happy.Gabriel,on the contrary ,is politically aware,he knows about the cancer that is destroying inexorably his country.But as a gay man,he is no longer part of it,he's about to be arrested.<br /><br />Forgetting everything that comes between them,they realize what they have in common and they make love.This is an act of rebellion,particularly for Antonietta ,whose ethic should forbid such a thing.Becoming an adulteress in a land where politics and religion combine to repress women as ever leads her to some kind of political awareness.One of the last shots shows her listening to the news on the radio.<br /><br />Expect the unexpected and maybe a doctrine which denies the human being his intimate personality will see that its days are numbered. |
It's sort of hard for me to say it, because I so greatly enjoyed both "Targets" and "Paper Moon", but I thought "The Last Picture show" was a somewhat fascinating but overly self-indulgent film. Its main positive, as far as I'm concerned, is the stunning photography. But for me the film had nothing to offer beyond surface beauty (and a kind of hidden beauty, at that). The characters were very hard to relate to or to care about. Basically you had this very slow pace and this naturalistic style of acting, but it was all there to prop up a very formulaic and predictable story, complete with all the trappings one would expect from any small town melodrama -- everything from the boy cheating with his teacher's wife to the handicapped kid who everyone picks on. It was like "American Graffiti" without the joy of life.<br /><br />Some might say this film is more realistic -- nowadays a lot of people seem to think that realism is the only virtue a film can possess. But for me the film was simply oppressive, and I want to see it again about as badly as I'd like to spend a few hours in that miserable town the characters live in.<br /><br />Maybe this film really just belongs to its time -- perhaps if I'd seen it in 1971 I would have been impressed by its novelty, just by seeing something different on the screen. But that would basically assume that I had never seen anything like, say, Godard's "Breathless". Maybe the overt references to classic films would have appealed to the movie geek in me and helped me to overlook some of the film's weaknesses. But in the post-Tarantino world that hardly seems unique or special either.<br /><br />It is interesting though how he uses the films in the film to give his own film more depth. We see 3 films as I recall in the picture show. First we see Vincente Minnelli's "Father of the Bride" -- Liz Taylor's exquisite looks provide a contrast to Sonny's girlfriend and Minnelli's studied upper-middle class milieu contrasts to the character's "real life" surroundings in a similar way. Later, clips from Howard Hawks' "Red River" emphasize the theme of a broken friendship between a mentor and a protégé. It really just reminds me that Bogdanovich is kissing his own mentor's butt, much as he did if I remember correctly by selecting a Hawks film as part of his own on-screen reverie with Boris Karloff in "Targets". I guess in 1971 this kind of thing was new but looking at it today it just seems self-indulgent, like so much of the rest of this film.<br /><br />Ultimately, I'd rather see another film by Hawks, Ford or Minnelli than to have Bogdanovich's film remind us of why they were so striking in such a less-than-subtle way. Maybe he intends to remind us of the giants whose time had passed -- all he really does is remind us how small he and most of his contemporaries are in relation. |
We study the Cauchy problem with periodic initial data for the
forward-backward heat equation defined by the J-self-adjoint linear operator L
depending on a small parameter. The problem has been originated from the
lubrication approximation of a viscous fluid film on the inner surface of the
rotating cylinder. For a certain range of the parameter we rigorously prove the
conjecture, based on the numerical evidence, that the set of eigenvectors of
the operator $L$ does not form a Riesz basis in $\L^2 (-\pi,\pi)$. Our method
can be applied to a wide range of the evolutional problems given by
$PT-$symmetric operators.
|
The measurement of the betatron tunes in a circular accelerator is of
paramount importance due to their impact on beam dynamics. The resolution of
the these measurements, when using turn by turn (TbT) data from beam position
monitors (BPMs), is greatly limited by the available number of turns in the
signal. Due to decoherence from finite chromaticity and/or amplitude detuning,
the transverse betatron oscillations appear to be damped in the TbT signal. On
the other hand, an adequate number of samples is needed, if precise and
accurate tune measurements are desired. In this paper, a method is presented
that allows for very precise tune measurements within a very small number of
turns. The theoretical foundation of this method is presented with results from
numerical and tracking simulations but also from experimental TbT data which
are recorded at electron and proton circular accelerators.
|
Book about Weight Loss is Great!
Well nice! I love the easy and fun receipes in this book. The bourbon and apricot meatloaf and the black current and lemon chicken are my favs so far. I love the layout of the cookbook. I received this book for free for my honest opinion. This was a complete guide book written over instant pot recipes book. In this book you will get all information about instant pot recipes. The content of this book was amazing and helpful. I will recommended this book. Awesome book to be - 40 pounds! |
In this paper, we present a full attitude control of an efficient quadrotor
tail-sitter VTOL UAV with flexible modes. This control system is working in all
flight modes without any control surfaces but motor differential thrusts. This
paper concentrates on the design of the attitude controller and the altitude
controller. For the attitude control, the controller's parameters and filters
are optimized based on the frequency response model which is identified from
the sweep experiment. As a result, the effect of system flexible modes is
easily compensated in frequency-domain by using a notch filter, and the
resulting attitude loop shows superior tracking performance and robustness. In
the coordinated flight condition, the altitude controller is structured as the
feedforward-feedback parallel controller. The feedforward thrust command is
calculated based on the current speed and the pitch angle. Tests in hovering,
forward accelerating and forward decelerating flights have been conducted to
verify the proposed control system.
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We take an additional step towards the optimization of the novel finite-range
pseudopotential at constrained Hartree-Fock-Bogolyubov level and implement an
optimization procedure within an axial code using harmonic oscillator basis. We
perform the optimization using three different numbers of the harmonic
oscillator shells. We apply the new parameterizations in the O-Kr part of the
nuclear chart and isotopic chain of Sn, and we compare the results with
experimental values and those given by a parameterization obtained using a
spherical code.
|
The article reviews the statistical theory of signal detection in application
to analysis of deterministic gravitational-wave signals in the noise of a
detector. Statistical foundations for the theory of signal detection and
parameter estimation are presented. Several tools needed for both theoretical
evaluation of the optimal data analysis methods and for their practical
implementation are introduced. They include optimal signal-to-noise ratio,
Fisher matrix, false alarm and detection probabilities, $\F$-statistic,
template placement, and fitting factor. These tools apply to the case of
signals buried in a stationary and Gaussian noise. Algorithms to efficiently
implement the optimal data analysis techniques are discussed. Formulas are
given for a general gravitational-wave signal that includes as special cases
most of the deterministic signals of interest.
|
Cytoskeletal crowding plays a key role in the diffusion of DNA molecules
through the cell, acting as a barrier to effective intracellular transport and
conformational stability required for such processes as transfection, viral
infection, and gene therapy. Here we elucidate the transport properties and
conformational dynamics of linear and ring DNA molecules diffusing through
entangled and crosslinked composite networks of actin and microtubules. We
couple single-molecule conformational tracking with differential dynamic
microscopy to reveal that ring and linear DNA exhibit surprisingly distinct
transport properties that are influenced differently by cytoskeleton
crosslinking. Ring DNA coils are swollen and undergo heterogeneous and biphasic
subdiffusion that is hindered by crosslinking. Conversely, crosslinking
actually facilitates the single-mode subdiffusion that compacted linear chains
exhibit. Our collective results demonstrate that transient threading by
cytoskeleton filaments plays a key role in the dynamics of ring DNA, whereas
the mobility of the cytoskeleton dictates transport of linear DNA.
|
Good Leggings
I LOVE these leggings. It's a little on the small side. I had 3 pairs. One of them had a hole by my private part, so I threw them away. Other than that- I'm still wearing the first pair I got almost a year ago. The most recent one I got, I don't wear as much because it's really tight & it's not loosening up as much. But I do love the quality of these leggings! |
We analyze the Sun as a source for the indirect detection of dark matter
through a search for gamma rays from the solar disk. Capture of dark matter by
elastic interactions with the solar nuclei followed by annihilation to
long-lived mediators can produce a detectable gamma-ray flux. We search three
years of data from the High Altitude Water Cherenkov Observatory and find no
statistically significant detection of TeV gamma-ray emission from the Sun.
Using this, we constrain the spin-dependent elastic scattering cross section of
dark matter with protons for dark matter masses above 1 TeV, assuming an
unstable mediator with a favorable lifetime. The results complement constraints
obtained from Fermi-LAT observations of the Sun and together cover WIMP masses
between 4 GeV and $10^6$ GeV. The cross section constraints for mediator decays
to gamma rays can be as strong as $\sim10^{-45}$ cm$^{-2}$, which is more than
four orders of magnitude stronger than current direct-detection experiments for
1 TeV dark matter mass. The cross-section constraints at higher masses are even
better, nearly 7 orders of magnitude better than the current direct-detection
constraints for 100 TeV dark matter mass. This demonstration of sensitivity
encourages detailed development of theoretical models in light of these
powerful new constraints.
|
This paper is a continuation of earlier work on generators of simple Lie
algebras in arbitrary characteristic (see arXiv:0708.1711). We show that, in
contrast to classical Lie algebras, simple graded Lie algebras of Cartan type
S,H or K never enjoy the 'one-and-a-half generation' property. The methods rely
on a study of centralisers in Cartan type Lie algebras.
|
We present an experimental scheme to measure the full distribution of
many-body observables in spin systems, both in and out of equilibrium, using an
auxiliary qubit as a probe. We focus on the determination of the magnetization
and the kink-number statistics at thermal equilibrium. The corresponding
characteristic functions are related to the analytically-continued partition
function. Thus, both distributions can be directly extracted from experimental
measurements of the coherence of a probe qubit that is coupled to an Ising-type
bath, as reported in [X. Peng et al., Phys. Rev. Lett. 114, 010601 (2015)] for
the detection of Lee-Yang zeroes.
|
Massive black hole binary systems, with masses in the range ~10^4-10^10
\msun, are among the primary sources of gravitational waves in the frequency
window ~10^-9 Hz - 0.1 Hz. Pulsar Timing Arrays (PTAs) and the Laser
Interferometer Space Antenna (LISA) are the observational means by which we
will be able to observe gravitational radiation from these systems. We carry
out a systematic study of the generation of the stochastic gravitational-wave
background from the cosmic population of massive black hole binaries. We
consider a wide variety of assembly scenarios and we estimate the range of
signal strength in the frequency band accessible to PTAs. We show that, taking
into account the uncertainties surrounding the actual key model parameters, the
amplitude lies in the interval h_c(f = 10^-8 Hz)~5x10^-16 - 8x10^-15. The most
optimistic predictions place the signal level at a factor of ~3 below the
current sensitivity of Pulsar Timing Arrays, but within the detection range of
the complete Parkes PTA for a wide variety of models, and of the future
Square-Kilometer-Array PTA for all the models considered here. We also show
that at frequencies >10^-8 Hz the frequency dependency of the generated
background follows a power-law significantly steeper than f^-2/3, that has been
considered so far. Finally we show that LISA observations of individual
resolvable massive black hole binaries are complementary and orthogonal to PTA
observations of a stochastic background from the whole population in the
Universe. In fact, the detection of gravitational radiation in both frequency
windows will enable us to fully characterise the cosmic history of massive
black holes.
|
Multifrequency observations with the GMRT and the VLA are used to determine
the spectral breaks in consecutive strips along the lobes of a sample of
selected giant radio sources (GRSs) in order to estimate their spectral ages.
The maximum spectral ages estimated for the detected radio emission in the
lobes of our sample of ten sources has a median value of $\sim$20 Myr. The
spectral ages of these GRSs are significantly older than smaller sources. In
all but one source (J1313+6937) the spectral age gradually increases with
distance from the hotspot regions, confirming that acceleration of the
particles mainly occurs in the hotspots. Most of the GRSs do not exhibit zero
spectral ages in the hotspots. This is likely to be largely due to
contamination by more extended emission due to relatively modest resolutions.
The injection spectral indices range from $\sim$0.55 to 0.88 with a median
value of $\sim$0.6. We show that the injection spectral index appears to be
correlated with luminosity and/or redshift as well as with linear size.
|
The extremal index is a quantity introduced in extreme value theory to
measure the presence of clusters of exceedances. In the dynamical systems
framework, it provides important information about the dynamics of the
underlying systems. In this paper we provide a review of the meaning of the
extremal index in dynamical systems. Depending on the observables used, this
quantity can inform on local properties of attractors such as periodicity,
stability and persistence in phase space, or on global properties such as the
Lyapunov exponents. We also introduce a new estimator of the extremal index and
shows its relation with those previously introduced in the statistical
literature. We reserve a particular focus to the systems perturbed with noise
as they are a good paradigm of many natural phenomena. Different kind of noises
are investigated in the annealed and quenched situations. Applications to
climate data are also presented.
|
Enormous suspension of disbelief is required where Will's "genius" is concerned. Not just in math--he is also very well read in economic history, able to out-shrink several shrinks, etc etc. No, no, no. I don't buy it. While they're at it, they might as well have him wearing a big "S" on his chest, flying faster than a jet plane and stopping bullets.<br /><br />Among other problems...real genius (shelving for the moment the problem of what it really is, and whether it deserves such mindless homage) doesn't simply appear /ex nihilo/. It isn't ever so multi-faceted. And it is very rarely appreciated by contemporaries.<br /><br />Better to have made Will a basketball prodigy. Except that Damon's too short. |
Let $L_{D_{\ell}}(-\ell +{3/2},0)$ (resp. $L_{B_{\ell}}(-\ell +{3/2},0)$) be
the simple vertex operator algebra associated to affine Lie algebra of type
$D_{\ell}^{(1)}$ (resp. $B_{\ell}^{(1)}$) with the lowest admissible
half-integer level $-\ell + {3/2}$. We show that $L_{D_{\ell}}(-\ell +{3/2},0)$
is a vertex subalgebra of $L_{B_{\ell}}(-\ell +{3/2},0)$ with the same
conformal vector. For $\ell =4$, $L_{D_{4}}(-{5/2},0)$ is a vertex subalgebra
of three copies of $L_{B_{4}}(-{5/2},0)$ contained in $L_{F_{4}}(-{5/2},0)$,
and all five of these vertex operator algebras have the same conformal vector.
|
We consider the classical camera pose estimation problem that arises in many
computer vision applications, in which we are given n 2D-3D correspondences
between points in the scene and points in the camera image (some of which are
incorrect associations), and where we aim to determine the camera pose (the
position and orientation of the camera in the scene) from this data. We
demonstrate that this posing problem can be reduced to the problem of computing
{\epsilon}-approximate incidences between two-dimensional surfaces (derived
from the input correspondences) and points (on a grid) in a four-dimensional
pose space. Similar reductions can be applied to other camera pose problems, as
well as to similar problems in related application areas. We describe and
analyze three techniques for solving the resulting {\epsilon}-approximate
incidences problem in the context of our camera posing application. The first
is a straightforward assignment of surfaces to the cells of a grid (of
side-length {\epsilon}) that they intersect. The second is a variant of a
primal-dual technique, recently introduced by a subset of the authors [2] for
different (and simpler) applications. The third is a non-trivial generalization
of a data structure Fonseca and Mount [3], originally designed for the case of
hyperplanes. We present and analyze this technique in full generality, and then
apply it to the camera posing problem at hand. We compare our methods
experimentally on real and synthetic data. Our experiments show that for the
typical values of n and {\epsilon}, the primal-dual method is the fastest, also
in practice.
|
Given a graph $H$ and an integer $p$, the {\it edge blow-up} of $H$, denoted
as $H^{p+1}$, is the graph obtained from replacing each edge in $H$ by a clique
of size $p+1$ where the new vertices of the cliques are all different. The
Tur\'{a}n numbers for edge blow-up of matchings were first studied by Erd\H{o}s
and Moon. In this paper, we determine the Tur\'{a}n numbers for edge blow-up of
general graphs.
|
We present the results of magnetic measurements on Nd6Co(1.67)Si3, a compound
recently reported to crystallize in a hexagonal structure (space group P6_3/m)
and to undergo long range magnetic ordering below 84 K. The results reveal that
the magnetism of this compound is quite complex with additional magnetic
anomalies near 50 and 20 K. There are qualitative changes in the isothermal
magnetization behavior with the variation of temperature. Notably, there is a
field-induced spin reorientation as the temperature is lowered below 20 K. A
finding we stress is that this transition is discontinuous for 1.8K in the
virgin curve, but the first order character appears only after a field-cycling
for a narrow higher temperature range near 5 K. Thus, this compound serves as
an example for the stabilisation of first-order transition induced by
magnetic-field-cycling. The issues of 'Phase co-existence' and 'meta-stability'
after a field-cycling at low temperatures in this compound are also addressed.
|
We use a Green's function method to study the temperature-dependent average
moment and magnetic phase-transition temperature of the striped
antiferromagnetism of LaFeAsO, and other similar compounds, as the parents of
FeAs-based superconductors. We consider the nearest and the next-nearest
couplings in the FeAs layer, and the nearest coupling for inter-layer spin
interaction. The dependence of the transition temperature TN and the
zero-temperature average spin on the interaction constants is investigated. We
obtain an analytical expression for TN and determine our temperature-dependent
average spin from zero temperature to TN in terms of unified self-consistent
equations. For LaFeAsO, we obtain a reasonable estimation of the coupling
interactions with the experimental transition temperature TN = 138 K. Our
results also show that a non-zero antiferromagnetic (AFM) inter-layer coupling
is essential for the existence of a non-zero TN, and the many-body AFM
fluctuations reduce substantially the low-temperature magnetic moment per Fe
towards the experimental value. Our Green's function approach can be used for
other FeAs-based parent compounds and these results should be useful to
understand the physical properties of FeAs-based superconductors.
|
It is known that among Siegel modular forms of degree $2$ and level $1$ the
only functions that violate the Ramanujan conjecture are Saito-Kurokawa lifts
of modular forms of level $1$. These are precisely the functions whose Fourier
coefficients satisfy Maass relations. More generally, the Ramanujan conjecture
for $\mathrm{GSp}_4$ is predicted to fail only in case of CAP representations.
It is not known though whether the associated Siegel modular forms (of various
levels) still satisfy a version of Maass relations. We show that this is indeed
the case for the ones related to P-CAP representations. Our method generalizes
an approach of Pitale, Saha and Schmidt who employed representation-theoretic
techniques to (re)prove this statement in case of level $1$. In particular, we
compute and express certain values of a global Bessel period in terms of
Fourier coefficients of the associated Siegel modular form. Moreover, we derive
a local-global relation satisfied by Bessel periods, which allows us to combine
those computations with a characterization of local components of CAP
representations.
|
but that could probably be easily fixed if I would just spray some wd-40 or ...
Bought this to store all of my over the counter medications, things for headaches, tummy aches, colds, etc. It made everything a lot easier to find, and since I don't have a lot of cupboard space it really saved me room in my cabinets. My only gripe is that it doesn't slide that well, but that could probably be easily fixed if I would just spray some wd-40 or even just coconut oil on the railing. |
We study the optical properties of a single, semiconducting single-walled
carbon nanotube (CNT) that is partially suspended across a trench and partially
supported by a SiO2-substrate. By tuning the laser excitation energy across the
E33 excitonic resonance of the suspended CNT segment, the scattering
intensities of the principal Raman transitions, the radial breathing mode
(RBM), the G-mode and the D-mode show strong resonance enhancement of up to
three orders of magnitude. In the supported part of the CNT, despite a loss of
Raman scattering intensity of up to two orders of magnitude, we recover the E33
excitonic resonance suffering a substrate-induced red shift of 50 meV. The peak
intensity ratio between G-band and D-band is highly sensitive to the presence
of the substrate and varies by one order of magnitude, demonstrating the much
higher defect density in the supported CNT segments. By comparing the E33
resonance spectra measured by Raman excitation spectroscopy and
photoluminescence (PL) excitation spectroscopy in the suspended CNT segment, we
observe that the peak energy in the PL excitation spectrum is red-shifted by 40
meV. This shift is associated with the energy difference between the localized
exciton dominating the PL excitation spectrum and the free exciton giving rise
to the Raman excitation spectrum. High-resolution Raman spectra reveal
substrate-induced symmetry breaking, as evidenced by the appearance of
additional peaks in the strongly broadened Raman G band. Laser-induced line
shifts of RBM and G band measured on the suspended CNT segment are both linear
as a function of the laser excitation power. Stokes/anti-Stokes measurements,
however, reveal an increase of the G phonon population while the RBM phonon
population is rather independent of the laser excitation power.
|
Not 12" King but Amazon was great and gave me a discount!
First of all, I ordered the 12" King size and waited 48 hours before sleeping on it. It did NOT expand to 12 inches! It was 10" on all sides though,not like some people's reviews that said it was uneven all around,or received moldy or smelly beds. Mine is clean as shown in the picture and I didn't notice any strong smells,just a faint odor that went away after a day or two. I took a picture after it stopped expanding,and while the covering was slightly loose in one area,the bed looks pretty. I have back problems and this mattress has NOT helped. I purposely waited to write this review after sleeping on it for a week. One review said the bed felt soft and firm at the same time and I wondered how could that be? I don't know but she was right! If you like a firm mattress then you'll probably like this,though some said it gets softer as time goes on. I personally have been having back pain every morning so I will be adding a soft foam topper to put over it! I'm a senior and my daughter and I (mostly my daughter) put this on top of the Xl Twin box springs that came in a King frame I ordered. So after having to get rid of my old bed and all the money I paid for a new King size frame, and new box springs and the bed in a box I was not going to donate it and get a receipt like I've read that Zinus has you do in order to get a refund!!! I read from one review that a guy called Amazon and they helped him so I gave it a shot! I explained that I didn't want to return the bed, but since I was paying for a 12" bed and my bed is only 10" that I should get a discount and that's what they did! They adjusted my bill and I am VERY happy with AMAZON! I will update this review after I buy my new topper! |
In the XML community, exact queries allow users to specify exactly what they
want to check and/or retrieve in an XML document. When they are applied to a
semi-structured document or to a document with an overly complex model, the
lack or the ignorance of the explicit document model (DTD-Document Type
Definition, Schema, etc.) increases the risk of ob-taining an empty result set
when the query is too specific, or, too large result set when it is too vague
(e.g. it contains wildcards such as "*"). The reason is that in both cases,
users write queries according to the document model they have in mind; this can
be very far from the one that can actually be extracted from the document.
Opposed to exact queries, preference queries are more flexible and can be
relaxed to expand the search space during their evalua-tions. Indeed, during
their evaluation, certain constraints (the preferences they contain) can be
relaxed if necessary to avoid precisely empty results; moreover, the returned
answers can be filtered to retain only the best ones. This paper presents an
algorithm for evaluating such queries inspired by the TreeMatch algorithm
proposed by Yao et al. for exact queries. In the pro-posed algorithm, the best
answers are obtained by using an adaptation of the Skyline operator (defined in
relational databases) in the context of documents (trees) to incrementally
filter into the partial solutions set, those which satisfy the maximum of
preferential constraints. The only restriction imposed on documents is
No-Self-Containment.
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Confinement of atoms inside impenetrable (hard) and penetrable (soft)
cavities has been studied for nearly eight decades. However, a unified virial
theorem for such systems has not yet been found. Here we provide a general
virial-like equation in terms of mean square and expectation values of
potential and kinetic energy operators. It appears to be applicable in both
free and confined situations. Apart from that, we have derived an equation
using the time-independent Schr\"odinger equation, which can be treated as a
sufficient condition for a given stationary quantum state. A change of boundary
condition does not affect these virial equations. In the hard confining
condition, the perturbing (confining potential) does not affect the expression;
it merely shifts the boundary from infinity to a finite region. In the soft
case, on the contrary, the final expression includes contributions from the
perturbing term. These are demonstrated numerically for several representative
enclosed systems like harmonic oscillators (one-dimensional and
three-dimensional) and hydrogen atoms. Its applicability in various other
confinements (including angular) has been discussed. In essence, a virial
equation has been proposed for free and confined quantum systems, from simple
arguments.
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Electron spin resonance with a scanning tunneling microscope (ESR-STM)
combines the high energy resolution of spin resonance spectroscopy with the
atomic scale control and spatial resolution of STM. Here we describe the
upgrade of a helium-3 STM with a 2D vector-field magnet ($B_z$ = 8.0 T, $B_x$ =
0.8 T) to an ESR-STM. The system is capable of delivering RF power to the
tunnel junction at frequencies up to 30 GHz. We demonstrate magnetic field
sweep ESR for the model system TiH/MgO/Ag(100) and find a magnetic moment of
$(1.004 \pm 0.001)$ $\mu_B$. Our upgrade enables to toggle between a DC mode,
where the STM is operated with the regular control electronics, and an
ultrafast-pulsed mode that uses an arbitrary waveform generator for pump-probe
spectroscopy or reading of spin-states. Both modes allow for simultaneous
radiofrequency excitation, which we add via a resistive pick-off tee to the
bias voltage path. The RF cabling from room temperature to the 350 mK stage has
an average attenuation of 18 dB between 5 and 25 GHz. The cable segment between
the 350 mK stage and the STM tip presently attenuates an additional
$34_{-3}^{+5}$ dB from 10 to 26 GHz and $38_{-2}^{+3}$ dB between 20 and 30
GHz. We discuss our transmission losses and indicate ways to reduce this
attenuation. We finally demonstrate how to synchronize the arrival times of RF
and DC pulses coming from different paths to the STM junction, a prerequisite
for future pulsed ESR experiments.
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