text:
\part{\partial}
\def\ome{\omega}
\newcommand {\e} {\varepsilon}
\newcommand {\s} {\sigma}

\begin{document}

\title{
Solitary phase waves in a chain of autonomous oscillators}
\author{Philip Rosenau}
\affiliation{Department of Mathematics, Tel-Aviv University\\
 Tel-Aviv 69978, Israel}
\author{Arkady Pikovsky}
\affiliation{Institute for Physics and Astronomy,
University of Potsdam, Karl-Liebknecht-Strasse 24/25, 14476 Potsdam-Golm, Germany}
\affiliation{National Research University, Higher School of Economics,
Bolshaya Pecherskaya St. 25/12, 603155 Nizhny Novgorod, Russia}
\date{\today}

\begin{abstract}
In the present paper we study phase waves of self-sustained oscillators with a nearest
neighbor dispersive coupling on an infinite lattice. To analyze the underlying dynamics we approximate the lattice with a  quasi-continuum, QC. The resulting partial differential model is then further reduced to the Gardner equation which predicts many properties of the underlying solitary structures. Using an iterative procedure on the original lattice equations we determine the shapes of solitary waves, kinks, and the flat-like solitons, that we refer to as flatons. Direct numerical experiments reveal that the interaction of solitons and flatons on the lattice is notably clean. All in all we find that both the QC and the Gardner equation predict remarkably well the discrete  patterns and their dynamics.
\end{abstract}

\maketitle

\begin{quotation}
Interacting limit cycle oscillators play a fundamental role in synchronization studies. When the coupling is small,
 systems dynamics reduces to that of the oscillators phases.
In many set-ups, as in the seminal Kuramoto model, the
interaction is dissipative and leads ultimately to  synchrony of all phases.
Yet, in many experimental set-ups the coupling
is dispersive  with the resulting phase equations being conservative.
We focus on a conservative phase dynamics
 on a one-dimensional lattice and demonstrate the existence of a very robust dynamics of solitary waves. A crucial role in the understanding
of the dynamics is played by its quasi-continuum approximation via a partial differential equation which provides a remarkably
accurate description of the underlying phenomena on the lattice.
\end{quotation}

\section{Introduction}
Dynamics of networks of oscillators have gathered  in recent years  considerable attention. The dynamics of even the simplest
network architectures, like global coupling in a population~\cite{Pikovsky-Rosenblum-15} or
a local coupling on a regular lattice (see e.g.,~\cite{Yanchuk-Wolfrum-08}),
 is highly nontrivial even for the simplest Kuramoto-Sakaguchi type of
interactions~\cite{Sakaguchi-Kuramoto-86}. In the latter case, one addresses the phase dynamics
of oscillators coupled via their first harmonics, with an additional phase shift. This
phase shift determines the relative importance of dissipative, diffusion-type, and conservative
(dispersive) interactions. For the diffusion-type coupling, the interaction results in a global
synchronization of a homogeneous lattice (in a inhomogeneous lattice with random oscillator
frequencies, the diffusive coupling should be strong enough to ensure
synchrony~\cite{Ermentrout-Kopell-84}.)  Homogeneous oscillator
lattices with a  purely conservative coupling follow a very different path for their phase dynamics, which is, surprisingly enough, Hamiltonian
leading to a formation of a nontrivial waves, like compactons or kovatons ~\cite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06,Ahnert-Pikovsky-08,Rosenau_2018}.

In the present paper we extend our previous work and address  both analytically and numerically
a dispersive variant of the
Kuramoto-Sagakuchi chain. Studying the solitary structures we find solitons in a bounded range of velocities. At range's edge solitons collapse and kink/anti-kink emerge. However, close to the transition's threshold, we find a narrow strip of velocities wherein solitons undergo a structural change and rather than grow with amplitude they widen and turn into flat-top solitons, referred to as flatons. Notably, interaction between solitons and flatons is found to be remarkably clean. A purely
dispersive coupling   of self-sustained oscillators, of the type studied here, is relevant in micromechanical
oscillators studied both theoretically~\cite{Cross_etal-04,Cross_etal-06,Lee-Cross-11,Matheny_etal-14,Fon_eal-17} and
more recently were explored experimentally
 \cite{Matheny_etal-19}. Note that the long chains we focus on are not easily
 accessible experimentally. The more realistic short chains where boundary effects matter
  will be a subject of future studies.

\section{The basic model}
Consider a chain of self-sustained, autonomous, oscillators with a nearest-neighbor
coupling, described via their complex amplitudes
$A_n$:
\begin{equation}
\frac{d A_n}{dt}=i\omega A_n+ \mu A_n(1-|A_n|^2)+i\varepsilon (A_{n-1}-2A_n+A_{n+1})\;.
\label{eq:cgll}
\end{equation}
The amplitudes in \eqref{eq:cgll} were normalized with the equilibrium amplitude
of a single oscillator being unity, whereas $\mu$, assumed to be large, governs the relaxation rate to the equilibrium,
 so that the limit cycle oscillations are strongly stable. Contrary to the large dissipation
of the local amplitude dynamics, the present coupling is assumed to be purely conservative as found in
  nano-electro-mechanical setups addressed in \cite{Cross_etal-04,Cross_etal-06,Lee-Cross-11,Matheny_etal-14,Fon_eal-17} and
recently realized experimentally
 \cite{Matheny_etal-19}. In the  $\mu\to\infty$ limit one may neglect the changes in
 amplitude's modulus and set $A_n=e^{i\varphi_n}$, where $\varphi_n$ is the phase of the oscillator. This leads
to a phase chain model
\begin{equation}
\frac{d\varphi_n}{dt}=\omega +\varepsilon \Big(\cos(\varphi_{n+1}-\varphi_n)+
\cos(\varphi_{n-1}-\varphi_n)-2\Big)\;.
\label{eq:plm1}
\end{equation}
In chain \eqref{eq:plm1}, any linear phase profile $\varphi_n=(\pi/2-\alpha) n$ is uniformly rotating (a so-called twisted state~\cite{Wiley-etal-06}).
 To study the deviations from this plane wave we introduce the phase difference  $\theta_n=\varphi_{n+1}-\varphi_n+\alpha-\pi/2$,
and rescale the time $\varepsilon t\to t$, to obtain
the following basic model
\begin{equation}
\frac{d\th_n}{dt}=\sin(\alpha-\theta_{n+1})-\sin(\alpha-\theta_{n-1}).
\label{eq:plm3}
\end{equation}
 As  is clear from its derivation, Eq.~\eqref{eq:plm3} which is the basis of our studies, describes phase waves on the top of
the plane wave, whereas $\alpha$ defines the slope of the background linear
phase profile. The very particular  $\alpha=\pi/2$ case was addressed in Refs.~[\onlinecite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06}].

Noteworthy are the invariance properties of Eq.~\eqref{eq:plm3} under $(\theta,\alpha) \to -(\theta,\alpha)$ and
$(\theta,\alpha,n)\to (-\theta,\pi-\alpha,-n)$ and especially its invariance   under
\begin{equation}
\theta\to 2\alpha-\theta.
\label{eq:Invariance}
\end{equation}

Consequently both $\th=0$ and $\th=2\a$ are solutions as is $\th=\a$ which is mapped into itself. \\

Among the features of Eq.~\eqref{eq:plm3} we note the
 dispersion relation $\omega=2\cos\alpha\sin k$, $-\pi\leq k\leq \pi$ of its linear waves and the aforementioned "sonic vacuum" when $\alpha=\pi/2$~\cite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06}, for
linear waves are absent and the lattice becomes essentially nonlinear. Finally, we note the conservation laws
\begin{equation}
I_{1}=\sum_{n}\th_{n},~~~I_{2}=\sum_{n}\cos(\a-\th_{n}),~~~\text{and}~~ I_{3}=\sum_{n}(-1)^{n}\th_{n},
\label{eq:Conservation}
\end{equation}
valid on an infinite chain.

\section{Waves in a Quasi-continuum}
\subsection{General Features}

In spite of their innocuous appearance, Eqs.~\eqref{eq:plm3} describe a
complicated nonlinear system which defies a direct analysis.
As in previous works \cite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06,Rosenau_2018},
to gain insight into its dynamics we shall adopt a quasi-continuous description
wherein the discrete system is replaced with a continuous formulation
which keeps a trace of its discrete origin.
To this  end we approximate
the chain as:
$\theta_{j}(t)\to \theta(x,t)$,  and $f_{j+1}-f_{j-1}\to 2(f_{x}+ \frac{1}{6} f_{xxx})$
which yields
\begin{equation}
\frac{1}{2}\frac{\partial{\th}}{\partial{t}} + \Big(\frac{\partial}{\partial{x}}+\frac{1}{6}\frac{\partial^{3}}{\partial{{x^3}}}\Big)\sin({\th}-\a) =0.
\label{eq:qc1}
\end{equation}
As there is no small parameter in the problem, Eq.~\eqref{eq:qc1} cannot, in the strict mathematical sense,
be considered  as an asymptotic description of the discrete problem and its utility can be judged only
posteriori. Nonetheless both
in the present problem and in a large variety of other problems, cf.~\cite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06,Rosenau_2018},
it captures both the qualitative and quantitative properties of the discrete solitary waves remarkably well.

Similarly to the discrete system, Eq.~\eqref{eq:qc1} is also invariant under
$\th \to 2\alpha - \th$. Thus, if $\th_{1}$
is solution so is $\th_{2}=2\alpha-\th_{1}$.
This is a cyclic property with $\th_{2}$ leading back to $\th_{1}$ and as in the discrete case the trivial $\th=0$ solution yields $\th=2\alpha$ whereas $\th=\a$ is mapped into itself.

Separating the linear convection, we rewrite \eqref{eq:qc1} as
 \begin{equation}
\frac{1}{2} \th_{t} + \cos{\a}\th_{x} + C_{qc}(\th)\th_{x} + \frac{1}{6} \frac{\partial^{3}}{\partial x^{3}}
\sin(\th-\a)=0\;,
\label{eq:qc2}
\end{equation}
where
\begin{equation}
  C_{qc}(\th)= 2\sin(\frac{\th}{2})\sin(\a-\frac{\th}{2})\;.
\end{equation}
 Note the non-monotone nature of $C_{qc}(\th)$;  it attains its maximal
 value at $\th=\a$ and vanishes at both $\th=0$ and $\th=2\a$, which
 merely reflects its  invariance under \eqref{eq:Invariance}.

 Eq.~\eqref{eq:qc1} conserves four local quantities
\begin{equation}
I_{1}=\int{\th}dx,~~~ I_{2}=\int{Q(\th)}dx, ~~~,I_{3}=\int{\sin{\sqrt{6}(x+x_{0})\th}}dx,~~~
I_{4}=\int{\cos{\sqrt{6}(x+x_{0})\th}}dx\;,
\end{equation}
where $Q(\th)=\int{\sin(\th'-\a)}d\theta'=\cos(\alpha-\th)$. $I_{1}$ and $I_{2}$  are in a direct correspondence
with the corresponding discrete conservation quantities. Notably, the QC admits also a Lagrangian (for more details see ~\cite {Rosenau_2018})

\begin{equation}
{\cal{L}} =\int \int \Big[\frac{1}{2}\psi_{x}\psi_{t}- Q\Big({\bf{L}}\psi_{x}\Big)\Big]dxdt;,
\end{equation}
where
\begin{equation}
{\bf{L}}=\sqrt{1+\partial^{2}_{x}}, ~~~ \th= {\bf{L}}{v}, ~~~\text{and}~~~v=\psi_{x}.
\end{equation}
Consequently, the QC  conserves also the momentum $\int{v^{2}}dx$, and in the original variables

\begin{equation}
I_{5} =\int{\th {\bf{L}}^{-2}\th}dx\;.
\end{equation}

\subsection { The Gardner Approximation }
To unfold the key phenomena we begin with a weakly non-linear regime, $\th<<1$, wherein
\begin{equation}
\frac{1}{2}\th_{t}+\cos{\a}\th_{x} +(\frac{\sin{\a}}{2}\th^{2}-\frac{\cos{\a}}{6}\th^{3})_{x} +
\frac{\cos{\a}}{6}\frac{\partial^{3} \th}{\partial x^{3}} =0\;.
\label{eq:qc3}
\end{equation}
Note that whereas, on one hand, we have neglected the nonlinear corrections to the third derivative which, insofar that $\th -\a \neq \pm \pi/2$, has only a minor quantitative impact,
on the other hand, to preserve the crucial non-monotone nature of convection we have carried its expansion to the third order.
Using the Galilean invariance to dispense with convection's
linear part, after normalization  Eq.~\eqref{eq:qc3} begets the celebrated Gardner equation
\begin{equation}
u_t +C_{G}(u)u_x+u_{xxx}=0\;,~~~~\text{where}~~C_{G}=6u(1-u).
\label{eq:G1}
\end{equation}
 Both $C_{G}$ and  Eq.~\eqref{eq:G1} are invariant under $u \rightarrow 1-u$, which echoes the invariance of the original lattice and its QC rendition under \eqref{eq:Invariance}.  Its solitons, traveling with speed $\lambda$, satisfy an ordinary differential equation
with respect to $s=x-\lambda t$:
\begin{equation}
\frac{1}{2}u_s^2 + P_{G}(u)=0\;,~~~{\rm where}~~2P_{G}(u)=- \lambda u^2 + 2u^3 - u^4\;.
\label{eq:G2}
\end{equation}
Note that due to the defocusing effect of the cubic term,
the potential peaks at $u=\frac{3}{4}[1+\sqrt{1-8\lam/9}]$, and comes down as the speed increases.  Consequently,
the resulting solitons
\begin{equation}
u=\frac{\lambda}{1+ \sqrt{1-\lambda}
\cosh{\left(\sqrt{\lambda} (x- \lambda t)\right)}}
\label{eq:TW2modkdv}
\end{equation}
have a bounded range  of admissible
propagation speeds: $0<\lambda<1$. At the limiting velocity
$\lambda =1$, potential's peaks touches the $u$-axis and
the soliton solution~\eqref{eq:TW2modkdv} flattens into a constant $=1$.
This is a singular limit at  which both kink and an anti-kink form
\begin{equation}
u=\frac{1}{1+ \exp(\mp s)}\;,~~~
{\rm{where}}~~~ s=x-t\;.
\label{gardner2}
\end{equation}

Close to the edge of solitons upper velocity range, there is a narrow strip of velocities where solitons undergo
a structural change  and rather than grow with amplitude
they begin to widen and their top flattens. To extract these features from Eq.~\eqref{eq:TW2modkdv},
let
$$ \lambda_{f} = 1-\eps^{2}\;,~~~~
{\rm{where}}~~ 0<\epsilon \ll 1,$$
to obtain
\begin{equation}
u=  \frac{1-\eps^{2}}{1+\eps\cosh{\left[\sqrt{\lambda_f}
(x-  \lambda_{f}t)\right]}},
\label{ueps}
\end{equation}
with soliton's amplitude being $u_{max} =1-\eps$.
The extent of soliton's  widening
is expressed via $x_{1/2}$, where soliton's amplitude
has decreased by half;
\begin{equation}
x_{1/2} \simeq \ln{\frac{2}{\eps}}.
\label{x0eps}
\end{equation}

Thus, amplitude(velocity) changes $\sim 1-\epsilon$ ($\sim 1-\epsilon^{2}$) which are
 pretty much numerically unobservable, cause
 solitons to widen as $\sim \ln{1/\eps}$.
 We shall refer to the flat-like solitons as {\it flatons}.

The proximity of flatons velocities to the edge of the admissible speeds range enables to approximate them by a kink-antikink pair
 placed at $2x_{1/2} \gg 1$ from each other:
\begin{equation}
u\cong\frac{1}{1 + \exp{\left(|x|-x_{1/2}\right)}}, ~~x\in (-\infty,\infty),
\label{flaton}
\end{equation}
and provides an upper bound to all flatons.

\subsection{Analysis of the Traveling Waves}
\label{sec:twfna}

We now proceed to unfold the solitary wave structure of QC, Eq.~\eqref{eq:qc1}.
Seeking travelling waves $\theta=\theta(s=x-\lam t)$, upon one integration we have
\begin{equation}
-\frac{\lam}{2}\th + \sin(\th-\a)+\sin{\a}+ \frac{1}{6}\sin(\th-\a)'' =0,
\label{eq:TW1}
\end{equation}
and, as their small amplitude regime indicates, traveling waves call for $2\cos{\a}<\lam$.
 Integrating  Eq.~\eqref{eq:TW1} we have
\begin{equation}
\frac{1}{6}\cos^{2}(\th-\a)\th_{s}^{2}+P_{qc}(\lam,\a;\th)=0\;,
\label{eq:twqc}
\end{equation}
where the potential $P_{qc}$ reads
\begin{equation}
P_{qc}(\lam,\a;\th) = -\lam \Big[\th\sin(\th-\a)+\cos(\th-\a)-\cos\alpha]+
\Big[\sin(\th-\a)-\sin\alpha\Big]^{2}\;.
\label{P_{qc}}
\end{equation}
  A typical potential landscape  for $\a=\pi/4$ is displayed in Fig.~\ref{fig:pot}
  for three values of $\lam$.
  As in the weakly nonlinear case, the bounded potential sets an upper bound at which propagation is possible,
corresponding to  potential's top descending  toward the $\th$-axis at $\th=2\a$ with $\lam=2\sin{\a}/\a$, where the soliton flattens into a constant and kink/anti-kink emerge. Consequently,
\begin{equation}
2\cos\a=\lam_{min}<\lam <\lam_{max} = 2\frac{\sin{\a}}{\a}
\end{equation}
 determines the interval of admissible velocities of solitary waves.

\begin{figure}[ht]
\includegraphics[width=0.5\columnwidth]{fig1.eps}
\caption{The potential landscape for $\a=\pi/4$, with $(\lam_{min},\lam_{max})=
(\sqrt 2, 4\sqrt{2}/\pi)$. The three plots display the potential corresponding to
 $\lam = 1.7, 1.75~$ and $~4\sqrt{2}/\pi=\lambda_{max}$.
At the critical
speed  $ \lam_{max}$ potential's positive peak touches the $\th$-axis,
soliton dissolves and kink/antikink connects the two peaks. The two vertical
$\th=\alpha \pm \pi/2$ lines where  Eq.~\eqref{eq:twqc} becomes singular, bound the admissible domain.}
 \label{fig:pot}
\end{figure}

\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{field $\theta/\pi$}
\psfrag{a}[cc][cc]{(a)}
\includegraphics[width=0.45\textwidth]{fig2a.eps}
\psfrag{xlabel1}[cc][cc]{amplitude $\theta_{max}/\pi$}
\psfrag{ylabel1}[cc][cc]{velocity}
\psfrag{b}[cc][cc]{(b)}
\includegraphics[width=0.45\textwidth]{fig2b.eps}\hfill
\caption{Waves for $\alpha=0.2\pi$. (a): Solitary solutions of the chain Eq.~\eqref{it5} (circles) superimposed on
 the QC rendition, Eq.~\eqref{eq:twqc}, for different  values of their velocity deviations from its upper bound. From bottom to top: $\lambda_{max}-\lambda= 10^{-m}$, $m=1...9$.
 (b): Velocity of solitons vs. their amplitude in both discrete and QC renditions. Observe the remarkable fit between the QC and its discrete antecedent.}
\label{fig:swl}
\end{figure}

 On the basis of the weakly nonlinear regime,
 we anticipate that as $\lambda \to \lambda_{max}=2\sin(\a)/\a$,
 solitons turn into flatons which,  as illustrated in Fig.~\ref{fig:swl}, is indeed the case.

Note  the structural singularity of Eq.~\eqref{eq:twqc} at
$\th - \a =\pm\pi/2$, denoted by the vertical lines on the potential landscape, where Eqs.~\eqref{eq:qc1} and \eqref{P_{qc}} degenerate, setting $\a=\pi/2$ as the highest admissible value of parameter $\a$ with the corresponding maximal amplitude
$\th=2\a=\pi$, and the maximal speed of the kink being $\lam_{max}=\frac{4}{\pi}$.
In the special $\a=\pi/2$  case, rather than  a sequence of flatons approaching the kink limit,
a kovaton emerges which, since Eq.~\eqref{eq:qc1} becomes
singular both  at $\th=0$ and at the top $\th=\pi$, is and strictly  compact there
(see~\cite{Rosenau-Pikovsky-05,Pikovsky-Rosenau-06} for a full elaboration of this case).
Also, unlike flatons where every width corresponds to a different speed, however minutely different,
 {\it all kovatons travel at exactly the same limiting velocity of their corresponding kink} with their width being  chosen at will.

\section{Traveling waves on the chain}
 Our starting point is the original chain equation \eqref{eq:plm3} rewritten as
\begin{equation}
\dot{\theta}_n(t)=\sin\alpha\Big(\cos \theta_{n+1}(t)-\cos \theta_{n-1}(t)\Big)-
\cos\alpha\Big(\sin \theta_{n+1}-\sin \theta_{n-1}\Big)\;.
\label{it1}
\end{equation}
Seeking travelling waves $\theta_n(t)=\Theta(t-an)$ of Eq.\eqref{it1}
 where $a=1/\lambda$ is the inverse velocity, we obtain an advance-delay equation
\begin{equation}
\dot{\Theta}=\sin\alpha \Big(\cos \Theta(t-a)-\cos \Theta(t+a)\Big)-\cos\alpha\Big(\sin \Theta(t-a)-\sin \Theta (t+a)\Big).
\label{it2}
\end{equation}
We integrate Eq.~\eqref{it2} once to obtain
\begin{equation}
\Theta(t)=\int_{t-a}^{t+a} \Big[\sin\alpha (1-\cos \Theta(x))+\cos\alpha \sin \Theta(x)\Big] dx,
\label{it3}
\end{equation}
with the integration constant chosen to assure that $\Theta=0$
is a solution. In what follows \eqref{it3} will be a starting point for the following iterative procedure.

\subsection{Kinks}

Assume that there is a kink connecting $\Theta=0$ with $\Theta=\Theta_0$.
Setting $\Theta=\Theta_0$ in \eqref{it3}, begets a condition relating $a$ with $\Theta_0$:
\begin{equation}
\Theta_0=2a[\sin\alpha-\sin(\alpha-\Theta_0)]\;.
\label{eq:it4}
\end{equation}
However, symmetry \eqref{eq:Invariance} dictates that  for a given inverse velocity $a$, there should be a solution
connecting $\Theta_1=2\alpha$ with $\Theta_2=2\alpha-\Theta_0$.
This leads to an additional condition relating $a$ and $\Theta_0$:
\begin{gather}
2\alpha=2a[\sin\alpha-\sin(\alpha-2\alpha)]=4a\sin\alpha\;,\label{eq:it6}\\
2\alpha-\Theta_0=2a[\sin\alpha-\sin(\alpha-2\alpha+\Theta_0)]=
2a[\sin\alpha-\sin(\Theta_0-\alpha)]\label{eq:it7}\;.
\end{gather}
Adding \eqref{eq:it4} and \eqref{eq:it7}, we have
\[
2\alpha=4a\sin\alpha\;,
\]
which coincides with the $\lambda_{max}$  derived in Section~\ref{sec:twfna}.
Using $a=\frac{\alpha}{2\sin\alpha}$ in \eqref{eq:it7},
we have
\[
\frac{\sin(\Theta_0-\alpha)}{\Theta_0-\alpha}=\frac{\sin\alpha}{\alpha},
\]
with the obvious solution $\Theta_0=2\alpha$, which may serve as kink's amplitude.

To determine the kink we solve Eq.~\eqref{it3}
 iteratively:
\begin{equation}
\Theta^{(k+1)}(t)=\int_{t-a}^{t+a} [\sin\alpha (1-\cos \Theta^{(k)}(x))+\cos\alpha \sin \Theta^{(k)}(x)]  dx.
\label{it4}
\end{equation}
Starting from an initial ansatz $\Theta^{(0)}(x)$, having a proper asymptotic behavior at $x\to\pm\infty$,
these iterations converge and yield the kink profiles
shown in Fig.~\ref{fig2-k}.

\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{field $\Theta/\pi$}
\includegraphics[width=0.7\textwidth]{fig3.eps}
\caption{Discrete kinks for different values of $\alpha$: from bottom to top
$\alpha=0.05\pi,\;0.1\pi,\;0.2\pi,\;0.4\pi$, and $0.5\pi$. In the last, exceptional, case the tail decays at doubly exponential rate.}
\label{fig2-k}
\end{figure}

\subsection{Solitary Waves}
 In order to apply the iterative procedure  due to V. Petviashvili~\cite{Petviashvili-76,Petviashvili-81} to solitary waves, to avoid convergence to the trivial solution we modify it
 by introducing an intermediate  normalization step

\begin{equation}
\tilde{\Theta}(t)=\int_{t-a}^{t+a}  [\sin\alpha (1-\cos \Theta^{(k)}(x))+\cos\alpha \sin \Theta^{(k)}(x)]
dx,\qquad \Theta^{(k+1)}=
\left(\frac{||\Theta^{(k)}||}{||\tilde{\Theta}||}\right)^{\gamma}\tilde{\Theta},
\label{it5}
\end{equation}
where $||\diamond||$ stands for any norm (in our implementation the $L_1$-norm was used).
Also, to assure a faster convergence the exponent $1<\gamma\leq 2$ was adjusted to the assumed $\alpha$ and
 $a$ (though the convergence itself does not depend  on $\gamma$).
When carrying the iterations \eqref{it5},
we fix $\alpha$ and $a$
and start with a solitary profile. The resulting iterations yield a solitary solution on the chain.
In Fig.~\ref{fig:swl} we compare the discrete solitary solutions with the
corresponding QC solitary solutions obtained solving Eq.~\eqref{eq:twqc}
and, as clearly seen, find a remarkable overlap attesting to the utility of the QC rendition.

It is instructive to represent the solitary waves in terms of the original
phases $\varphi_n$ rather than in the phase differences $\theta_n$ (cf. Eqs.~\eqref{eq:plm1},\eqref{eq:plm3}).
This is done in Fig.~\ref{fig:swph}, where we have adopted the reference frame with $\omega=0$.

\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{time}
\psfrag{xlabel1}[cc][cc]{space}
\psfrag{ylabel1}[cc][cc]{time}
\psfrag{a}[cc][cc]{(a)}
\psfrag{b}[cc][cc]{(b)}
\psfrag{p0}[cc][cc]{$0$}
\psfrag{p1}[cc][cc]{$\pi$}
\psfrag{p2}[cc][cc]{$2\pi$}
\includegraphics[width=0.48\textwidth]{fig4a.eps}\hfill
\includegraphics[width=0.48\textwidth]{fig4b.eps}
\caption{Space-time plots of a soliton (panel (a)) and of a flaton (panel (b))
in terms of the phases $\varphi_n(t)$ (color-coded values), for $\alpha=0.2\pi$. The background stripes
represent the plane wave
on base of which solitary waves propagate.}
\label{fig:swph}
\end{figure}

\section{Direct simulations of the chain}
We now proceed to present the results of our  direct simulations of the chain~\eqref{it1}.
We address two basic initial-value problems.

\subsection{Evolution of an initial step}

\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{filed $\theta_n/\pi$}
\psfrag{a}[cc][cc]{(a)}
\psfrag{b}[cc][cc]{(b)}
\psfrag{c}[cc][cc]{(c)}
\psfrag{d}[cc][cc]{(d)}
\psfrag{e}[cc][cc]{(e)}
\psfrag{f}[cc][cc]{(f)}
\includegraphics[width=0.48\textwidth]{fig5a.eps}\hfill
\includegraphics[width=0.48\textwidth]{fig5b.eps}
\caption{ $\alpha=0.25\pi$. Evolution on the lattice for different downstream values of $A$: panels (a-b): $A=0.7\pi$,
panels (c-d): $A=0.35\pi$, panels (e-f): $A=0.2\pi$. The left panel enlarges the vicinity of the front.}
\label{fig:stepev}
\end{figure}

Consider an initial step profile $\theta_n(0)=\frac{A}{2}(1-\tanh \frac{4(n-n_0)}{N_0})$, with $N_0=50$, connecting downstream $A$ with the trivial upstream,
and follow the frontal edge of the propagating wave. Fig.~\ref{fig:stepev}
displays three different  evolution scenario according to order relations between the downstream amplitude $A$ and $\a$.

1.  $A>2\alpha$;  as seen in Fig.~\ref{fig:stepev} (a,b), a kink forms. It is followed by  a characteristic linear profile connecting downstream
$A$ with kink's amplitude $2\alpha$. Behind kink's leading  profile few solitons emerge which, due to the invariance \eqref{eq:Invariance},  point down from the top plateau
 $2\alpha$. Being much slower than the kink they lag far behind the emerging dispersionless profile.

2. $\alpha \lesssim A\lesssim 2\alpha$. As seen in Fig.~\ref{fig:stepev} (c,d), a kink forms, but now t is followed by an oscillating domain
with a nearly triangular envelope, which intermediates between the downstream $A$ and kink's frontal amplitude $2\alpha$. The waves-train
can be viewed as a sequence of negative solitons, though in Fig.~\ref{fig:stepev} (c,d) only the first few
pulses have became a truly isolated pointing-down solitons.

3. $ A\lesssim \alpha$ (see Fig.~\ref{fig:stepev} (e,f)). Kink does not form. Instead, there is a wave packet embedded
 within a triangular envelope. In the course of the evolution the leading waves continue to separate from each other to became
true solitons with the leading amplitude $\approx 2 A$ propagating with a velocity as given via $P_{qc}(\lambda;\frac{\pi}{2},2A)=0$.\\

We now append the above phenomenological description of the numerical simulations
with an analysis based on the remarkable proximity we have found between the dynamics on the lattice,
its QC rendition, and the Gardner equation. To this end we shall refer to the  recent  study of the Gardener equation
by Kamchatnov \textit{et al}~[\onlinecite{Kamchatnov-etal-12}] and to an earlier, seminal work of Gurevitch and Pitaevski~[\onlinecite{Gurevich-Pitaevsky-74}]. The comparison is based on their analysis of the signalling problem for Eq.~\eqref{eq:G1}

\begin{equation}
u(x,0) = \begin{cases}
A & \mbox{for } x<0, \\
0 & \mbox{for } x > 0.
\end {cases}
\label{fig:initstep}
\end{equation}

We start noting (the parenthesis refer to the corresponding QC case) that the convection
  $C_{G}=6u(1-u)$ ($C_{cq}(\th)= 2\sin(\frac{\th}{2})\sin(\a-\frac{\th}{2})$) has three key points: $u=0$ ($\th=0$) and $u=1$ ($\th=2\a$)
  where it vanishes, and  a turning point where it attains its  maximal value which separates
  the two domains of monotonicity at $u=1/2~$ in Gardner's case and $~\th=\a$ in the QC.

With the upstream being trivial,  according to Ref.~[\onlinecite{Kamchatnov-etal-12}] there are three regimes according to the position of the downstream amplitude A vs. the three key points:\\
1) { $A<1/2~$ (QC: $A<\a$)},\\
2) { $1/2<A<1~$ (QC: $\a<A<2\a$)},\\
3) { $1<A~$ (QC: $2\a<A$)}.\\
We now  detail the dynamics of Gardner's equation vis a vis the numerical results, in parenthesis, in the various regimes.

1){ $A<1/2~$ (QC: $A<\a$).} The downstream and the upstream are on the same side of the monotonicity. In this regime the Gardner equation
 is de facto governed by the KdV equation to which it reduces when the cubic term becomes
 secondary. Consequently, as follows from the analysis in Refs.~[\onlinecite{Gurevich-Pitaevsky-74}] and ~[\onlinecite{Kamchatnov-etal-12}], the  solution takes the
 form of a modulated periodic wave, the so called undular bore, with a lead amplitude having twice its downstream
 value,i,e., $2A$, see Fig.(6) in \cite{Kamchatnov-etal-12}. So much for Gardner; returning to our case,
 panels (e-f) in Fig.~\ref{fig:stepev} clearly show that the analytical features displayed by Gardner's equation parallel {\it the simulation results of the chain}!

2) {$1/2<A<1~$ (QC: $\a<A<2\a$)}. The downstream and the upstream are now on the opposite
sides of convection's monotonicity and Gardner's  solution consists of two parts; let $u(*)=1$ ($\th(*)=2\a$)
be the point where convection vanishes then, provided that $A<u(*)$, instead of a single modular kink
spanning, as in the previous case, the whole upstream-downstream range, we now have a reverse modular kink connecting the
downstream state $A$ with an intermediate state $u(*)$ which then connects to the trivial upstream via a
kink,  see Fig.(8) in \cite{Kamchatnov-etal-12}. Exactly the same phenomenon is seen on panels (c-d)
of Fig.~\ref{fig:stepev} where $\th(*)=2\a$ (that $u(*)=1$ is a consequence of the upstream being trivial.
If $0<u(+\infty)<1/2$,  $u(*)=1-u(+\infty)$ and kink's amplitude depends on $u(+\infty)$ as
well \cite{Kamchatnov-etal-12}).\\

3){  $1<A~$ (QC: $2\a<A$)}. This is a dispersionless regime and rather than a  modulated periodic wave we
have a rarefaction wave which intermediates between the downstream A and a kink at the front, propagating
with the highest admissible velocity,  see Fig.(10) in \cite{Kamchatnov-etal-12}.
Exactly the same effect is observed on panels (a-b) of the chain, with $2\a$ being kink's amplitude.

\subsection{Evolution of an initial pulse}
This is arguably the most basic numerical experiment. We follow the evolution of an initially single pulse excitation
 $\theta_n(0)=\frac{A}{\cosh^2 \frac{4(n-n_0)}{N_0}}$, with $N_0=50$. It begets a sequence of solitary waves with
the leading waves being, for small $A$, solitons  which turn into flatons for large $A$'s, see left plate on Fig.~\ref{fig:pev} and kovatons on the right plate.
Though in these simulations flatons and kovatons emerge very naturally,  emergence  of several flatons or kovatons was never observed,
with the solitons forming behind the leading flaton/kovaton having amplitudes smaller than $2\alpha$ and thus slower as well. Notably, the Gardner equation which served us so well in the signalling problem, does not beget flatons easily
 in a corresponding numerical experiments~\cite{ro-or}. They seem to have a very narrow domain of attraction and for a flaton to emerge a special 'tailoring' of initial data was necessary, though once present they have all the features of an integrable entity.

\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{filed $\theta_n/\pi$}
\psfrag{a}[cc][cc]{(a)}
\psfrag{b}[cc][cc]{(b)}
\includegraphics[width=0.45\textwidth]{fig6a.eps}\hfill
\includegraphics[width=0.45\textwidth]{fig6b.eps}
\caption{Emergence of flatons and kovatons.  Plate (a): $\alpha=0.25\pi$, and from bottom to top:
$A=0.05,\; 0.25,\; 0.5~$ and $1.5$. Plate (b): $\alpha=0.5\pi$, and from bottom to top:
$A=0.05,\; 0.4,\; 0.6,\; 1.0~$ and $1.5$. The difference between the two though
unobservable to the eye is meaningful; whereas flaton's tails decay exponentially, kovaton's tails decay
at a doubly-exponential rate which reflects the fact that in the QC limit it has a strictly compact support.}
\label{fig:pev}
\end{figure}
\subsection{Interaction of solitary waves}
The essence of our findings is summarized in Fig.~\ref{fig:coll} which
displays collision of two solitons and a collision of a flaton with a soliton: both in Fig.~\ref{fig:coll}
and other numerical experiments we have carried, the interaction on the lattice of solitary waves,
whether solitons or flatons is remarkably clean and the interacting entities reemerge
without  visible distortion or radiation.
\begin{figure}[!hbt]
\centering
\psfrag{xlabel}[cc][cc]{space}
\psfrag{ylabel}[cc][cc]{filed $\theta_n/\pi$}
\psfrag{a}[cc][cc]{(a)}
\psfrag{b}[cc][cc]{(b)}
\includegraphics[width=0.48\textwidth]{fig7a.eps}\hfill
\includegraphics[width=0.48\textwidth]{fig7b.eps}
\caption{Interaction of waves for $\alpha=0.2\pi~$. Panel (a): Interaction of two solitons.
Panel (b): interaction of a flaton with a soliton. The interval between
the frames (starting from bottom) is $\Delta t=150$. The profiles are arbitrarily shifted in $n$-direction.}
\label{fig:coll}
\end{figure}

\section{Summary}
In this paper we have explored emergence and interaction of nonlinear traveling waves in a phase oscillators chain. We have
found, both for the quasi-continuous rendition and its discrete antecedent, variety of soliton and kink solutions. Furthermore, we
have found that solitons in a velocity range close to kinks flatten and became very wide.  We thus refer to such solitons as flatons.
In 1-D flatons can be looked upon as a joined pair of two kinks. \emph{ In a direct numerical simulations of the chain we have seen the flatons emerging out of
 variety of large initial excitations}. Notably, interaction of solitons and solitons with a flaton are
very clean and without a noticeable distortion or radiation. \\

Finally, we reiterate the  both remarkable role of the Gardner equation~\eqref{eq:G1}, which was deduced at a second stage of approximation of the
 chain, in unfolding the various facets of the dynamics and the actual affinity between  its patterns and the patterns both observed on the chain and predicted by its QC rendition.

\acknowledgments
The authors thank M. Matheny and L. Smirnov for useful discussions.
AP is supported in part by the Laboratory of Dynamical Systems and Applications NRU HSE,
of the Ministry of Science and Higher Education of Russian Federation, grant ag. N 075-15-2019-1931.

redpajama_set_name: RedPajamaArXiv


Easy to operate and known for its high production rates, Striker's CQR400 tracked horizontal impact crusher can produce 10mm, 14mm and 19mm aggregate products.
Distributed by Onetrak in Australia, Hyundai's HL780-9 wheel loader offers improved durability and reliability while increasing efficiency.
The Dressta TD-14M crawler dozer offers a modern and comfortable, sound-compressed cab with all-round visibility and air recirculation system.
Onetrak is a major supplier of quality equipment within the construction and extractive industries of Australia. Our product mixture and expertise position us to provide total quarry solutions for our customers.
The company is today employing over 80 people with branches in Tasmania, Victoria, New South Wales, South Australia, Western Australia and Queensland. As well as expert sales experience, we offer rental equipment and genuine parts and service support across our entire product range.
Striker crushers and screens currently stocked in Australia.
The award winning Hidromek HMK 640 WL has arrived in Australia.
The new Hidromek HMK 300LC PLUS has arrived.
A quick snapshot from the Hidromek HMK 220 LC Excavator demo at Onetrak in Bunbury on 23rd November 2017.
HL770-9 The new HL 9 series loader is a fine example of high quality engineering and workmanship. With special attention given to increased performance, safety and serviceability.
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R55-9 A small machine for big jobs. The Hyundai Mini Excavator is a dense pack of power, perfect for getting in the tight places where the big machines can't go.


text:
namespace AGE
{
	namespace Physics
	{
		class PhysXRigidBody;

		class PhysXCollider : public virtual ColliderInterface
		{
			// Friendships
			friend PhysXRigidBody;

			friend class PhysXRaycaster;

		public:
			// Constructors
			PhysXCollider(void) = delete;

			PhysXCollider(WorldInterface *world, Private::GenericData *data, std::vector<physx::PxShape *> shapes);

			PhysXCollider(const PhysXCollider &) = delete;

			// Methods
			void updateShape(std::vector<physx::PxShape *> newShapes);

			// Assignment Operators
			PhysXCollider &operator=(const PhysXCollider &) = delete;

		protected:
			// Destructor
			virtual ~PhysXCollider(void);

			// Methods
			std::vector<physx::PxShape *> &getShapes(void);

			const std::vector<physx::PxShape *> &getShapes(void) const;

		private:
			// Attributes
			std::vector<physx::PxShape *> shapes;

			PhysXRigidBody *rigidBody = nullptr;

			// Inherited Methods
			void setAsTrigger(bool mustBeATrigger) override final;

			bool isATrigger(void) const override final;

			void setFilterGroup(FilterGroup group) override final;

			FilterGroup getFilterGroup(void) const override final;

			void setMaterial(const std::string &name) override final;

			void setPosition(const glm::vec3 &position) override final;

			void setRotation(const glm::quat &rotation) override final;
		};
	}
}

redpajama_set_name: RedPajamaGithub


This exhibition of eighteen manuscripts illuminated in the area of Flanders in the southern Netherlands (today part of Belgium) celebrates the variety of styles from the last great flowering of Flemish illumination during the fifteenth and early sixteenth centuries. All Books of Hours, the manuscripts provide intriguing iconographic and stylistic points of comparison with miniatures from The Hours of Catherine of Cleves. The Morgan's rich holdings of Flemish illumination comprise examples by the major illuminators of this prolific period encompassing the late Middle Ages and early Renaissance. Included are works by Lieven van Lathem and Willem Vrelant, two artists who collaborated with and were influenced by the Master of Catherine of Cleves.
This exhibition is underwritten by a major grant from the B. H. Breslauer Foundation.
St. George Slaying the Dragon (detail), Book of Hours, in Latin, Belgium, Bruges, ca. 1450, illuminated by Master of Jean Chevrot. The Morgan Library & Museum; MS M.421, fol. 23v.


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Every day it seems there is another story in the news about breaches in security, and organizations are increasingly concerned with protecting their network security and information systems. The average cost to Canadian companies of a data breach was $6.11 million in 2018.


text:
Tag Archives: Reimagining the World After COVID-19
IFK Panel 3 June @ 17.30 (SA), Inequality after Covid 19 – Letlhokwa Mpedi (UJ Dean of Law), Sridhar Venkatapuram (KCL Global Health Institute), Steven Friedman (UJ Professor, political scientist and public intellectual) – please register: https://universityofjohannesburg.us/4ir/covid-19/
Posted on June 2, 2020 by Alex Broadbent
Please join us for a panel discussion on Inequality after Covid, Wednesday 1 June @ 17.30 South Africa, W Europe | 16.30 UK | 11.30 US East Coast | 23.30 Beijing China | 01.30 [Thu] Sydney). Please "arrive" (log in) 15 minutes beforehand to ensure time for you to be admitted prior to the event as we admit participants individually for security reasons. We start sharp on the hour. To join you first need to register here: https://universityofjohannesburg.us/4ir/covid-19/
Professor Letlhokwa Mpedi is Executive Dean of Law at the University of Johannesburg and a specialist in labour law and social protection.
Dr Sridhar Venkatapuram is Senior Lecturer in Global Health and Philosophy at King's College Global Health Institute.
Professor Steven Friedman is Professor at the University of Johannesburg. He is a political scientist, columnist, public intellectual, activist, former trade unionist and journalist.
Facilitated by Professor Alex Broadbent, Director of the Institute for the Future of Knowledge at the University of Johannesburg
You need to register to watch this live, and it will be posted as a recording afterwards. Register here:
https://universityofjohannesburg.us/4ir/covid-19/
This is the fourth in a series of webinars on Reimaging the World After COVID-19, organised by the Institute for the Future of Knowledge in collaboration with the UJ Library and Information Centre on the initiative of the Vice Chancellor's Office at the University of Johannesburg.
Inequality After COVID
The COVID-19 pandemic has magnified inequalities between and across different groups and countries across the world. Effective social protection has been critical to the reduction of vulnerability. However, as many countries struggle to provide universal healthcare, the outbreak of COVID-19 has put pressure on healthcare systems globally. This has seen governments redirecting fiscus towards curtailing the effects of the pandemic, including in countries where healthcare systems are under-resourced and poorly staffed.
So far as we know, COVID-19 is markedly more dangerous for older people. Higher proportions of serious, critical and fatal COVID-19 are also observed among those suffering from certain other diseases such as diabetes, hypertension, and pre-existing heart disease. On the other hand, certain population groups are disproportionately impacted by economic and social disruption caused both by the disease itself and measures that are taken in an effort to curtail its spread. These include groups already marginalised by pre-existing structural inequalities among others: women and children, the elderly; racial, ethnic and religious minorities; People Living with HIV/AIDS (PLWHA); Persons with Disabilities (PWD) (physical and/or mental); and migrants, refugees and asylum-seekers. Not all of these people are not at high risk from COVID-19 itself, while many people who are at risk from COVID-19 are not in this group. In particular, the very strong age-related gradient in risk of serious, critical and fatal COVID-19 means that the wealthier populations, which tend to be older, are over-represented among the groups at highest direct risk from COVID-19. Conversely, the poorer and thus younger a population is, the less at risk it tends to be from COVID-19, but the more at risk from disruption to economies, societies and health services created by the disease and associated response measures.
The world is more unequal than any single country. According to an Oxfam's 2020 report titled, Time to Care: Unpaid and Underpaid Care Work and the Global Inequality Crisis, the world's 2,153 billionaires have more wealth than 60% of the global population; and the 22 richest men in the world have more wealth than all the women in Africa. With closure of schools, many girls and children from low-income households have been affected, and some may not be able to go back to schools. Lockdown regulations restricting mobility have affected activities of younger workers as well as those in precarious types of employment. As rates of relative deprivation increase, states have introduced cash-based assistance and other forms of social support. Migrants have been responded to negatively across the world – Chinese descendants have reported xenophobia, with their businesses attacked; and African migrants in China have also have also suffered the same fate. COVID-19 has been seen the rise of right-wing nationalist-populist governments. On the other hand, the pandemic has also underscored the way that individual fates are intertwined in public health, and the necessity of strong public healthcare provision for responding to collective threats. It is fair to surmise that universal healthcare may in future be elevated in a number of countries' policy priorities.
This webinar will explore the various issues concerning inequality that COVID-19 has highlighted as well as those created by the response to the disease. How should nation-states strengthen public health systems for future threats of this kind? Will conditions for precarious workers change post-pandemic? Governments will, for the short term at least, want to find alternative ways in which to support livelihoods, on pain of widespread malnutrition or even famine. How they are going to respond to increased deprivation? Will governments be able to fund these interventions? Will loans from international lenders come with conditions that may impact such schemes? How will COVID-19 influence migration regulation and border management, and ultimately, how are governments going to achieve a more inclusive society in which the respect for human rights for all will be achieved? Fundamentally, are there choices we can make now, as nations and a world, that will reduce the inequality and the hardship that falls on those at the bottom of the global pile?
Register here: https://universityofjohannesburg.us/4ir/covid-19/
Posted in COVID-19, Webinar	| Tagged Alex Broadbent, IFK, Inequality after COVID, Institute for the Future of Knowledge, Letlhokwa Mpedi, Reimagining the World After COVID-19, Sridhar Venkatapuram, Steven Friedman, UJ, University of Johannesburg, Webinar	| Leave a reply
IFK Panel 27 May: Data and Delusion after Covid 19 – Shakir Mohammed (Google Deepmind), Chris Harley (UJ Engineering), Olaf Dammann (Tufts Public Health and Community Medicine) https://universityofjohannesburg.us/4ir/covid-19-webinar-3/ #epitwitter @mediauj
Posted on May 26, 2020 by Alex Broadbent
Please join us for a panel discussion on Data and delusion after Covid 19, Wednesday 27 May @ 1pm South Africa, W Europe | 12 noon UK | 7am US East Coast | 7pm Beijing China. Please "arrive" (log in) 15 minutes beforehand to ensure time for you to be admitted prior to the event as we admit participants individually for security reasons. We start sharp on the hour. To join you first need to register.
Dr. Shakir Mohammed is a Senior Researcher at Google DeepMind in London, United Kingdom (UK).
Professor Charis Harley is an academic based in the Faculty of Engineering and the Built Environment at the University of Johannesburg (UJ), South Africa.
Professor Olaf Dammann is Vice-Chair of Public Health at Tufts University in Boston, United States (US), Professor of Perinatal Neuroepidemiology at Hannover Medical School, Germany, and Adjunct Professor in the Department of Neuromedicine and Movement Science at the University of Science and Technology in Trondheim, Norway.
Please register if you wish to watch this live. A recording will also be posted afterwards.
This is the third in a series of webinars on Reimagining the World After COVID-19, organised by the Institute for the Future of Knowledge in collaboration with the UJ Library and Information Centre on the initiative of the Vice Chancellor's Office at the University of Johannesburg.
Data and delusion after COVID-19
An epidemic has a single centre from which disease spreads: an epicenter. A pandemic is what happens when the disease no longer spreads from a single centre but circulates and spreads throughout the population. The COVID-19 pandemic has been accompanied by a pandemic of data. Data is offered, analysed, re-packaged and criticized by mighty international organisations and by tiny local outfits. Even private individuals with no prior expertise or interest in data, disease, or statistics spend hours poring over graphs and critiquing case fatality estimates.
Yet this proliferation of data and analysis has not yielded effective predictions. Instead, it has demonstrated how ill-equipped we are to deal with this new, non-hierarchical, distributed information context. Leading scientists have proved dramatically wrong. Or perhaps not – it depends who you ask. The unfolding pattern of spread still surprises us at every turn – except those who predicted it all along. Nothing is more common than the common cold, and coronavirus variants are one of its causes: yet we seem unable make reliable predictions about COVID-19.
This webinar explores a range of issues relating to data and trust in science in the aftermath of COVID-19. What went wrong with the modelling approach to prediction – if, indeed, anything did go wrong? How should policy and scientific research interact, and how should policy makers make use of data? Can people without domain-specific knowledge use data to predict better than the experts in that domain? If not, then can data analysts themselves make predictions merely by studying patterns in data? Turning to the generation of data, how does the individual interest in privacy weight against the public interest in private information, notably location, which can be very useful in the context of a pandemic?
Our improved data processing abilities did not help us as much as we might have imagined in this situation. Machine learning, in particular, thrives on spotting complex patterns in noisy datasets, and doing it fast; yet is has been conspicuously absent from the efforts to predict the course of this pandemic.
Posted in COVID-19, Webinar	| Tagged Alex Broadbent, artificial intelligence, Charis Harley, Coronavirus, COVID, COVID-19, data, data science, Deepmind, Google, IFK, Institute for the Future of Knowledge, machine learning, Olaf Dammann, public health, Reimagining the World After COVID-19, science, Shakir Mohammed, Tufts, UJ, Webinar	| Leave a reply
Video now up – the first in our series of webinars, Reimagining the world after COVID-19, with Joyce Banda, Johan Giesecke and Sehaam Khan
This event took place on Wednesday 13 May 2020.
Posted in COVID-19, Institute for the Future of Knowledge, Interviews, Webinar	| Tagged Alex Broadbent, Coronavirus, COVID, COVID-19, IFK, Institute for the Future of Knowledge, Johan Giesecke, Joyce Banda, lockdown, Post-COVID World, Reimagining the World After COVID-19, Sehaam Khan, video, Webinar	| Leave a reply
Panel 20 May: COVID-19 and the Emerging World Order
Please join us for a panel discussion on COVID-19 and the Emerging World Order, Wednesday 20 May @ 16.00-17:00pm South Africa, W Europe | 10:00-11:00 Beijing | 15.00-16:00 UK | 11.30-12.30 US East Coast. Please "arrive" (log in) 15 minutes beforehand to ensure time for you to be admitted prior to the event as we admit participants individually for security reasons. We start sharp on the hour.
Dr David Masondo (Deputy Finance Minister of South Africa)
Mr Grant Harris (former Advisor to US President Barack Obama on issues relating to sub-Saharan Africa)
Professor Dong Wang (Executive Director of the Institute for Global Cooperation and Understanding, Peking University)
Dr Oluwaseun Tella (Senior Researcher, Institute for the Future of Knowledge, University of Johannesburg)
You need to register to watch this live, and it will be posted as a recording afterwards. Register here: https://universityofjohannesburg.us/4ir/covid-19/
This is the second in a series of webinars on Reimagining the World After COVID-19, organised by the Institute for the Future of Knowledge on the initiative of the Vice Chancellor's Office at the University of Johannesburg.
Our first panelist, Dr David Masondo, is the Deputy Finance Minister for South Africa. He obtained his PhD at New York University and his prior degrees at the University of the Witwatersrand. He has held various political and management positions in provincial and national government. He has an abiding passion for education and has lectured on various topics in political economy at the University of the Witwatersrand. He is founding chairperson of the Topisa Trust, which provides ongoing support to youth to promote education, sport and cultural excellence in villages in Limpopo.
Our second panellist, Mr Grant Harris, is Chief Executive Officer at Harris Africa Partners LLC, Adjunct Professor of Global Management at Kellogg School of Management, Lecturer at University of California Berkeley. Until 2015 he was Special Assistant to the President and Senior Director for African Affairs at The White House under US president Barack Obama. He was educated at Berkeley, Princeton, and Yale Law School.
Our third panellist, Professor Dong Wang, is Executive Director of the Institute for Global Cooperation and Understanding, Peking University. He has considerable expertise in US-China relations, and in 2019 addressed the 11th US-China Political Party Leaders Dialogue on the topic.
Our fourth panellist, Dr Oluwaseun Tella, is Senior Research Associate at the Institute for the Future of Knowledge at the University of Johannesburg. He is a specialist in soft power and international relations, especially between China, Africa and the US, as well as within the continent of Africa.
Posted in Institute for the Future of Knowledge, Reimagining the World After COVID-19, Webinar	| Tagged Africa, Alex Broadbent, America, China, David Masondo, Dong Wang, Grant Harris, IFK, Institute for the Future of Knowledge, international relations, Oluwaseun Tella, political economy, politics, Post-COVID World, Reimagining the World After COVID-19, soft power, UJ	| Leave a reply

redpajama_set_name: RedPajamaCommonCrawl


The Borehamwood & Elstree Times – also known simply as the Borehamwood Times – is a weekly, principally freesheet tabloid newspaper delivered to homes in the Borehamwood, Elstree and Radlett area in the Borough of Hertsmere in southern central Hertfordshire.
It originates in a paper published in the 1940s, the Boreham Wood and Elstree Local , which merged with the Edgware and District Post, Barnet Borough Post in 1949 to become the Borehamwood, Elstree, Barnet Borough Post . In 1975 Barnet Borough was replaced in the title by Edgware; in 1980 Radlett was added to make the Borehamwood, Elstree, Radlett, Edgware Post . It relaunched at the beginning of 1987 as the Borehamwood Times ; when Newsquest bought the paper in 1998 it restored Elstree to the title.
It's published by Newsquest North London, from editorial offices in Watford which it shares with the Watford Observer .
Although it's primarily a freesheet, a small proportion of the print run is sold through the news trade.
It comes out on Fridays. A free e-edition's also available via the website.


Alagappa Chettiyar Engineering college (ACCET) affiliated to the Alagappa University, Karikudi conduct the counselling for admission into the B.E, B.Tech 2nd Year courses and would release the Notification for Engineering Lateral Entry Counselling 2018 of Tamil Nadu 2nd Year.
ACCET will hold the counselling during the month of June July 2018 for all the Private and Govt Colleges in Tamil Nadu. Concerned Authorities are yet to publish the counselling dates, however tentatively Application Forms would be issued to eligible candidates during the month of May where the form needs to be updated and sent back before June end.
Directorate of Technical Education, Chennai has announced calling for applications from Diploma Holders in engineering/Technology and B.Sc Graduates for admission to Second Year B.E/B.Tech Degree courses during 2018-2019 under LATERAL ENTRY SCHEME. And the seats are available in Government, Government aided engineering colleges, some self-financing colleges, and Anna University.
Candidate can fill the application forms ONLINE for second year BE/BTech degree courses, under the lateral entry scheme, for the 2018-2016 academic year from May 18 to June 14.
Application are invited only through online mode up to 5.00 PM on or before 14-June-2018 for Admission to Second Year B.E/B.TECH.Degree Courses 2018-2019.
All Semester Mark Sheets (All appearances) of Diploma./.B.Sc. or Equivalent Examinations (Xeroxing both sides).
Permanent Community Certificate Card(except Others(OC) candidates).
Must enclose Your DD (Demand Draft Original) for except(SC, SCA, ST candidates).
What is the cost of Lateral Entry Application form?
Lateral Entry to be filled online and DD to be taken as given below.
Application Fee for S.C./S.C.A./S.T. Candidates No Fee.
Demand Draft for Rs.300 Drawn in favour of The Secretary Direct Second Year B.E. Admissions 2018, ACGCET, Karaikudi, payable at Karaikudi.
Candidate's Rank and the Date of Counselling will be informed only through the website(www.accetlea.com).
Last date for receipt of filled in Application is 14.6.2014.
The filled in application should be sent to the Secretary, Second Year B.E. / B.Tech. Degree Admissions 2018, Alagappa Chettiar College of Engineering and Technology, Karaikudi – 630 004".
The Single Window Counselling for Lateral Entry Admissions 2018 will be conducted at "Alagappa Chettiar College of Engineering and Technology, Karaikudi – 630 003".
The candidates will be called for Counselling during the last week of June 2018 and allotment of Colleges will be done following merit and Communal reservation.


NORTH Yorkshire Police are treating a report of a man with a walking stick being verbally abused as a hate crime incident.
Officers are appealing for witnesses to the incident, which happened as the man was walking between Dishforth Road and the village of Copt Hewick, Ripon, at 6pm on July 13.
A North Yorkshire Police spokesman, said: "Officers are aware that there were a number of other vehicles on the road at the time of the incident that may have witnessed it and what has been said during the incident.
"We are conducting enquiries and are requesting the public's assistance to help determine the full circumstances surrounding the incident.
"If you wish to remain anonymous, you can pass information to Crimestoppers on 0800 555 111. Please quote the North Yorkshire Police reference number 12170123024."


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Miscellaneous Birds
Does a pelican's bill hold more than its belly can?
Pelican Feeding: What's on the Menu?
While most pelicans eat fish exclusively, they can be opportunistic lizards, frogs, crabs and lobsters. Pelicans have even been observed eating smaller birds, sometimes scooping up water in order to drown them before swallowing. In 2006, a photographer in London's St. James Park recorded an extraordinary sight. The five pelicans currently living in the park are fed a diet of fish, but apparently that wasn't enough for one of them. A pelican picked up a pigeon from the sidewalk and swallowed it, to the shock and amazement of park visitors. Since the incident, other people claimed to have seen the St. James Park pelicans eating pigeons. A spokesperson for the Royal Society for the Protection of Birds said that this behavior was highly unusual and likely attributed to the birds' contact with people and its more urban environment.
Sometimes pelicans tag along with other birds tracking their prey in the water, stealing the fish right from under them. They themselves are victims of pirating on occasion. It can take a few seconds for a pelican to drain all the water out of its pouch, during which time a gull -- often standing on the pelican's head and pecking it as a distraction -- darts into its open bill and steals the fish.
Aside from catching their prey, pelicans use their bill for other things. During courtship, male pelicans often stretch out and flap their pouches and clap their bills repeatedly. They may also lash out at rivals and other threats with the sharp hook at the end. Baby chicks are fed by both parents, who regurgitate partially digested fish for them to eat. Chicks that are old enough to eat whole fish but not yet ready to hunt may be seen "fishing" for dinner inside their parents' pouches. Pelicans that live in warm climates sometimes open their bills and flap their pouches in order to cool down.
Fossil records show that pelicans have been around for more than 40 million years, so regardless of how weird the pouch might seem to us, it's served the bird well. With the continued efforts of conservationists, hopefully pelicans will be around for a long time and continue to amaze and intrigue us -- especially if they mostly lay off snacking on pigeons.
Save the Pelican
Some pelican species are at risk of becoming extinct. The Dalmatian pelican is listed as "vulnerable" on the International Union for the Conservation of Nature's Red List of Threatened Species [source: IUCN]. Conservation efforts are underway.
Some species that live in the United States, like the brown pelican, dwindled in number due to the effects of the pesticide DDT, which made their eggs' shells too fragile to survive. The brown pelican is currently on the U.S. Fish & Wildlife Game Service's Endangered Species List for populations in California and Nevada, but may be soon removed due to a strong comeback.
Why do flamingos stand on one leg?
If a peacock loses his tail feathers, do they grow back?
How the Audubon Society Works
How did the bald eagle get delisted as an endangered species?
How the World Wildlife Fund Works
Audubon: Birds & Science
Cornell Lab of Ornithology: All About Birds
International Union for the Conservation of Nature's Red List of Threatened Species
"American White Pelican." Cornell Lab of Ornithology: All About Birds, 2003. http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/American_White_Pelican.html
Audubon: Birds & Sciencehttp://www.audubon.org/bird/
"Brown Pelican." Cornell Lab of Ornithology: All About Birds, 2003.http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Brown_Pelican.html
Clarke, James. "Pelican's pigeon meal not so rare." BBC News, October 30, 2006.http://news.bbc.co.uk/2/hi/uk_news/england/london/6098678.stm
"Dalmatian Pelican." ARKive.org, 2008.http://www.arkive.org/dalmatian-pelican/pelecanus-crispus/
"Great White Pelican." ARKive.org, 2008.http://www.arkive.org/great-white-pelican/pelecanus-onocrotalus/
Johnsgard, Paul A. "Cormorants, Darters and Pelicans of the World." Smithsonian Institution Press, 1993.
"Pelican Swallows Pigeon in Park." BBC News, October 25, 2006.http://news.bbc.co.uk/2/hi/uk_news/england/london/6083468.stm
Siegal, Ann Cameron. "Pelicans Get Clean Bill of Health." Washington Post, May 7, 2008; Page C14.http://www.washingtonpost.com/wp-dyn/content/article/2008/05/06/AR2008050602530.html
"Spot-billed Pelican." ARKive.org, 2008.http://www.arkive.org/spot-billed-pelican/pelecanus-philippensis/
Where Did San Francisco's Wild Parrots Come From?
Hummingbirds: What to Feed Them and a Springtime Q&A
Wisdom, the World's Oldest-known Bird, Lays Another Egg


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ON THE CLOCK! Week 18 : Bucs @ Falcons
4 weeks ago Jonathan Hinkle
THERE'S NO SUCH THING AS A "MEANINGLESS" GAME!
Just ask Tom Brady. Neither one of these teams has anything to gain or lose with this game, but don't try to tell either of them that. This game has plenty of meaning for BOTH teams. For the Falcons, it's an opportunity to beat the NFC South Champs and end a shitty season on a good note with a win. They would also play the role of spoiler in keeping the Bucs from a 9-8 winning season. As for the Bucs, it's a chance to get their third win in a row and keep their momentum heading into the playoffs. Not only are the Bucs trying to finish with a winning season, but Tom Brady is trying NOT to finish with a losing season for the first time in his career. He's also hoping NOT to tarnish his 11-0 career record against the Falcons. Although, I'm not sure how much he'll have to do with that if he gets pulled from the game early on.
The first time these two teams met this season, the Bucs jumped out to a 21-0 lead before giving up 15 points in the 4th quarter. As they have done so many times this season, the Bucs kept their fans on the edge of their seats but held off the Falcons late comeback attempt for the 21-15 win in the end. Both Tampa Bay AND Atlanta were 2-2 going into that Week 5 game. Since then, the Buccaneers have gone 6-6, while the Falcons have gone 4-8 including four straight losses before their win against the Cardinals last week. Tampa Bay already has five starters sitting this game "OUT" with injuries, but they could end up resting even more starters throughout this game. I don't see Atlanta doing the same. In any case, let's take a deeper look into both of these teams going into this "meaningless" Week 18 matchup.
ATLANTA FALCONS (6-10)
Even though the expectations weren't as high for them, they've had the same kind of inconsistent up and down season that the Bucs have had. They started with back-to-back losses to the Saints and Rams, but followed those up with wins against the Seahawks and Browns. They beat the Niners in Week 5, but lost to the Commanders and Steelers in Weeks 11 and 12. Now here they sit at 6-10, mathematically eliminated from the post-season and already looking towards next year.
With Marcus Mariota on IR, their 25th ranked offense averaging 315 total yards and 21 points per game will be lead this week by rookie quarterback Desmond Redder, who's completed 64% of his passes for 484 yards in the 3 games he's played this season. No touchdowns, but also no interceptions either. The 31st ranked passing offense is averaging just 156 yards through the air, while the 3rd ranked rushing attack is averaging 159 yards on the ground. That run game is led by rookie running back Tyler Allgeier who's totaled 900 yards and 3 touchdowns this season. He has taken over the starting job from veteran Cordarelle Patterson, who's been battling some injuries, but still managed to total 677 yards and 7 touchdowns this year. Both guys are averaging nearly 5 yards per carry, so they are BOTH a threat every time they get the football. They also have a rookie leading them in receiving as well in Drake London, who's got 66 catches for 746 yards and 4 touchdowns.
The 29th ranked defense is allowing 371 total yards and 23 points per game. Their 26th ranked pass defense is giving up 238 yards per game through the air, while the 24th ranked run defense is allowing 133 yards per game on the ground. Linebacker Rashaan Evans is their leading tackler by far with 154 tackles. The next closest guy is safety Richie Grant with 116 tackles. Defensive tackle Grady Jarrett leads the team in tackles for loss (11) and sacks (6). Cornerback AJ Terrell leads them in pass break-ups (8), while they have three players (LB Mykal Walker, S Richie Grant, S Jaylinn Hawkins) tied with a team-high 2 interceptions.
OFFENSE : RB Tyler Allgeier
The rookie running back took over the starting role after veteran Cordarelle Patterson got injured earlier this season and never looked back. This year, he's got 186 carries for 900 yards and 3 touchdowns while averaging 4.8 yards per carry. He's also added 16 catches for 139 yards and another touchdown in the passing game. The Falcons have no interest in throwing the football and they don't even try to hide it. Their offense literally runs through Allgeiers and Patterson. If the Bucs can shut their run game down, like they did the Panthers last week, then they should be able to win this game even without playing some of their starters.
DEFENSE : DE Grady Jarrett
He is the monster in the middle for the Falcons defense. He's totaled 58 tackles, 11 tackles for loss, 6 sacks and 3 pass break-ups this season. He is definitely the guy to worry about with Atlanta's front four, so controlling him will be key for the Buccaneers o-line who will be playing without left tackle Donovan Smith.
TAMPA BAY BUCCANEERS (8-8)
After beating the Panthers last week to clinch the NFC South title, the Buccaneers will have the unusual luxury of "resting" some starters on Sunday against the Falcons. They've already ruled "OUT" five starters and will likely limit the snaps of more during the game. But that doesn't mean they don't want to win this one. There's nothing on the line Sunday. They are locked in at that #4 seed and won't move up or down regardless of the outcome of this game. But it's still a division game. They would still like to finish 9-8 with a winning season. Tom Brady, who IS starting Sunday, has never had a losing season AND never lost to the Falcons in 11 games. The analyst and outsiders may say this game means nothing, but the Buccaneers don't see it that way.
Their 11th ranked offense is averaging 355 total yards and 19 points per game. The 2nd ranked passing attack averages 278 yards per game through the air, while the 32nd ranked rushing offense averages just 76 yards per game on the ground. The only team MORE one dimensional than the Bucs on offense are the Chicago Bears who are 1st in rushing and 32nd in passing. Right now, the Bucs offense has scored 215 fewer points than they did last season. With one game remaining, that is the largest drop-off from one season to the next in NFL history. The next closest would be the 73-74 Falcons with 207 points. They've scored just 29 touchdowns this season, where they had 56 at this point last year. Tom Brady has completed 67% of his passes for 4,610 yards, 24 touchdowns and 9 interceptions. It's hard to believe that he could still have a 5,000 yard season with the way the offense has performed this season, but he does. Leonard Fournette has just 668 rushing yards and 3 touchdowns, while averaging 3.5 yards per carry. Mike Evans now has 77 catches for 1,124 yards and 6 touchdowns this season, while Chris Godwin has 98 catches for 968 yards and 3 touchdowns. That means he needs just 32 yards to reach the 1,000-yard mark giving the Bucs a pair of receivers with that honor this year.
The Bucs 7th ranked defense is allowing just 321 total yards and 20 points per game. The 8th ranked passing defense allows just 203 yards per game through the air, while the 15th ranked run defense is still giving up 115 yards per game on the ground. Linebackers Devin White (122) and Lavonte David (121) lead the team in tackles and also lead the team in tackles for loss (David-9, White-8). Defensive tackle Vita Vea leads the team with 6.5 sacks, but Devin White and Anthony Nelson are just behind him with 5.5 sacks. Cornerback Carlton Davis III leads the team with 11 pass break-ups, but he has been ruled "OUT" for this game. Cornerback Jamel Dean is the next closest with just 7 pass break-ups. The Bucs have three players tied with a team-high 2 interceptions including cornerbacks Jamel Dean and Sean Murphy-Bunting and safety Mike Edwards.
OFFENSE : WR Julio Jones
He has just 24 catches for 299 yards and 2 touchdowns in 10 games this season, but he's getting more and more involved in the offense the healthier he gets. He missed the Bucs first meeting with the Falcons nursing his knee injury, so this will be the first time he's faced the Falcons with Tampa Bay. It will also be his first time back playing in Atlanta since he left there two years ago.
DEFENSE : S Keanu Neal
He has played well for the Buccaneers this season totaling 63 tackles, 2 tackles for loss, 4 pass break-ups and an interception. Like Jones, this will be his first trip back to Atlanta to play the Falcons, so I expect him to have a BIG game as well. Especially since safety Logan Ryan has been ruled "OUT" for Sunday.
1. Todd Bowles vs Desmond Ridder
Head coach Todd Bowles will almost certainly try to confuse the young rookie quarterback with different blitzes and coverages to try and trick him into some turnovers on Sunday. If the Bucs can stop the run and force the youngster into a turnover or two, then they should win this game easily.
2. Anthony Nelson vs Jake Matthews
"Nelly" has been playing better and better each week that he's been in the starting lineup. In the last 6 games, he's had 26 tackles, 2 tackles for loss, 4 QB hits, 3.5 sacks and 3 forced fumbles. He'll have a good matchup with Matthews on Sunday, who's one of the better left tackles in the league.
3. Nick Leverett vs Grady Jarrett
Jarrett leads the Falcons in tackles for loss AND sacks and he's one of the best interior defenders in football. Leverett will have his hands full, especially with Donovan Smith "OUT" for this game. With Josh Wells out for the season, I assume that Brandon Walton will be the starter at left tackle, which doesn't bode well for Tom Brady and the offense.
With the Buccaneers having nothing to lose or gain with this game, they are deciding to "rest" some of their players who have been battling nagging injuries lately. That's why they've already ruled "OUT" five starters for Sunday including cornerback Carlton Davis III (shoulder), outside linebacker Carl Nassib (pectoral), safety Logan Ryan (knee), left tackle Donovan Smith (foot) and defensive tackle Vita Vea (calf). They also have three players listed as "QUESTIONABLE" including cornerback Jamel Dean (toe), safety Mike Edwards (hamstring) and wide receiver Julio Jones (knee), so look for those guys to play limited snaps in this game. It also wouldn't surprise me to see other players get pulled early for precautionary reasons either.
Atlanta is much better off than Tampa Bay with injuries. They only have one player officially ruled "OUT" in offensive lineman Elijah Wilkinson (calf). They also only have two players listed as "QUESTIONABLE" in tight end Felipe Franks (concussion) and running back Avery Williams (foot).
1. KEEP IT HEALTHY!
The Bucs want to win this game, but make no mistake the #1 priority coming out of this game is to STAY HEALTHY! The guys that have been hurt are getting some much needed rest and getting ready for the playoffs. Now it's important to keep everyone else from getting hurt. Tampa Bay needs this win, but leaving Atlanta in one piece is even more important.
2. KEEP IT ROLLING!
After staying healthy, the next most important thing is winning this game. It's still a division game, even if it doesn't count for anything towards the standings. They would like to end the season with a winning 9-8 record. They would like to end the season with three wins in a row. They would like to keep their momentum going heading into the playoffs. Tom Brady would like to get to 12-0 against the Falcons. And he would also like to avoid the first losing season of his 23-year career. This game might seem "meaningless" in some ways, but it still means plenty to the Bucs.
3. KEEP IT SIMPLE!
Atlanta has scored more than 20 points just once since Week 9 and that was 27 points against a bad Bears defense in Week 11. This should be an easy game-plan for the Bucs. Stop the run on defense. Cause a turnover or two. Score early on offense. Get the ball out of Brady's hand quickly. Run some play-action. Hit a few deep balls. And get out of town with a win. That's it. That's all it needs to be.
Odds : Bucs +4/Falcons -4
Over/Under : 40.5 points
Moneyline : Bucs +240/Falcons -285
WHEN & WHERE TO WATCH
When : Sunday, January 8th @ 1pm ET
Where : Mercedes-Benz Stadium in Atlanta, Georgia
TV : FOX, NFL+ Radio : 97.9 FM/98 Rock
High around 55 with a 40% chance of rain; stadium does have a retractable roof, so weather will not effect this game
With the Bucs scoring more than 17 points in three straight games, I'm inclined to boost their point totals in my predictions, but not by much. They may not have much to play for and they may not play all their starters, but this team still wants to win this game. Especially Tom Brady, who's NEVER had a losing season in his 23-year career. He wants this one bad and I think he gets it. Tampa Bay gets up early and never looks back. Bucs win.
Bucs 23 Falcons 13
Who wants it more? That's what this game will come down to in the end. The Bucs backups versus the Falcons starters. We may even get to see some action from second year quarterback Kyle Trask. The Buccaneers might just be deep enough with their roster that they can beat this Falcons team despite missing a bunch of starters.
I said "might be".
If the starters can grab an early lead, like they did in the first meeting, they can win this game. This Atlanta team is not built to come from behind. If the Falcons get up early, then look for the Bucs to throw in the towel and pack it up. I don't think that'll happen though. The Bucs might be 8-8, but they're 6-2 against teams with losing records this season. The Falcons are 6-10 this season.
You do the math.
This will be one of those games that might not be fun to watch from a fundamental football standpoint, but it will provide plenty of drama. Will the Bucs win? How long does Tom Brady play? Will we see Kyle Trask get some regular season action against a starting NFL defense? Can the Bucs stay healthy? All these questions and more will be answered by about 4:30 pm Sunday afternoon.
So now that you know everything you need to know about the Bucs final regular season matchup, there's only one thing left to say.
ATLANTA FALCONS, YOUR ASS IS ON THE CLOCK!
Previous GOAT Status
Next The Good, The Bad and The Ugly : Week 18 – Bucs @ Falcons


Dev Cell. 2015 Dec 7;35(5):531-532. doi: 10.1016/j.devcel.2015.11.014.
Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA. Electronic address: cbrangwy@princeton.edu.
Recent advances suggest that phase transitions of proteins into liquid or hydrogel states could underlie pathological protein aggregation associated with neurodegenerative disease. In a recent issue of Neuron, Murakami et al. (2015) demonstrate that ALS-associated FUS mutations abrogate the reversibility of condensed liquids and/or hydrogels, leading to neurotoxicity in C. elegans.


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CFMM-FM is a radio station in Prince Albert, Saskatchewan. Owned by the Jim Pattison Group, it broadcasts a CHR/Top 40 format branded as Power 99. The station was previously owned by Rawlco Communications until its sale in 2014.

CFMM began broadcasting on January 31, 1982 and also has a rebroadcaster at 92.1 FM in Waskesiu Lake with the call sign CFMM-FM-1.

References

External links

Fmm
Fmm
Fmm
Radio stations established in 1982
1982 establishments in Saskatchewan

redpajama_set_name: RedPajamaWikipedia


Hi, I'm Christophe Vandeputte. Proud Belgian, serial dreamer and wanna-be entrepeneur. You could also call me a life-lover, that's forever a student.
I'm trying to make a dent in the world by breaking the taboo surrounding anxiety, depression and offering easy-to-follow solutions.
BEmindfool is a movement that promotes being less serious about spirituality and self-development, while still using the basic principles, as they are of great value. I've found out for myself the power in some techniques and share them with you now.
Although I was acting tough and a loud-mouth growing up, I was insecure and scared of people's opinions. Years of bottling up these emotions and trying to please everyone, something had to give. And something did give… I was desperate, seeking and searching EVERYWHERE, there must have been 'something' that I could find? I wasn't able to find what was 'wrong' with me.
I slowly realized that I forgot to look in the ONE place that made the most sense: inside of myself. I started building myself up again. Years of reading, practicing meditation, deliberately getting out of my comfort zone got me to where I'm at today.
We don't have to have perfect yoga stances and eat clean, vegan kale salads and smoothies. It's nice of you, Suzy. But it's not the standard and not an expectation.
You talk about mindfulness, adventure, balance: all things that I'm about. Instant follow!
I have a lot of appreciation with the way you think and how you try to inspire others is awesome! Keep pushing forward and great things will come on your path.
Inspiring, thanks! It's not easy for people to open up, but good work breaking the taboo!
I think it's really strong and inspiring what you do, being vulnerable yourself to help other people!


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ON STAGE & SCREEN
Theater and TV talk from a New Yorker living in LA.
New York Theater
Theater Review: Antaeus Theatre Company's Cat on a Hot Tin Roof
"What is the victory of a cat on a hot tin roof?" While the cat's case is less clear, there are many victories to be found in Antaeus Theatre Company's take on the Pulitzer Prize-winning Tennessee Williams classic Cat on a Hot Tin Roof, which marks the inaugural production at their beautiful new home, the Kiki … More Theater Review: Antaeus Theatre Company's Cat on a Hot Tin Roof
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Theater Review: Latino Theater Company's Rules of Seconds
In this new age of Hamilton, it seems duels are on the brain. Rules of Seconds, a world premiere play written by John Pollono and presented by the Latino Theater Company and The Temblors, transports us back to the 19th century, when people literally lived and died by the rules of duels, relying on this barbaric … More Theater Review: Latino Theater Company's Rules of Seconds
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Theater Review: An American in Paris at the Pantages Theatre
"When you think of Paris, what comes to mind?" This question, posed somewhat oddly to the audience, sets the tone for An American in Paris, the musical adaptation of the 1951 film of the same name now playing at the Pantages Theatre in Hollywood. While it is a bit off-putting to hear audience members shouting … More Theater Review: An American in Paris at the Pantages Theatre
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Theater Review: Deaf West Theatre's Edward Albee's At Home at the Zoo
"Do you want to know what happened at the zoo?" If you do, make your way to the Wallis Annenberg Center for the Performing Arts, home to the new Deaf West production of Edward Albee's At Home at the Zoo—although be warned, the actual answer to that question is far from the point of the … More Theater Review: Deaf West Theatre's Edward Albee's At Home at the Zoo
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Theater Review: Disinherit the Wind at The Complex
In the middle of act one of Disinherit the Wind, now playing at The Complex in Hollywood, something rather unusual is asked of the audience. The main character, Bertram Cates (portrayed by the playwright, Matt Chait) leads everyone in the room, actors and patrons alike, in a brief meditation. Out of context, this sounds ridiculously … More Theater Review: Disinherit the Wind at The Complex
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Theater Review: Scraps at The Matrix Theatre Company
Theater Review: The Caucasian Chalk Circle at Antaeus Theatre Company
Theater Review: The Play That Goes Wrong at the Ahmanson Theatre
Which GoT Characters Are Most Likely to Get Their Own Spin-Offs?
Theater Review: Indecent at the Ahmanson Theatre
Exclusive Offers (1)
Los Angeles Theater (185)
NY Theater (18)
My OnStage Reviews & Columns
Theater Review: The Phantom of the Opera at the Pantages Theatre
Theater Review: Spies Are Forever
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A poll conducted after the massacre at a Florida high school shows Americans back stricter guns laws by a 66-31 percent margin, the highest level of support ever recorded by the Quinnipiac Poll.
Gun owners, by a 50-44 percent margin, also support tighter measures.
The question of universal background checks for would-be gun owners also has overwhelming support, with 97 in favor and just 2 percent against, including 97-3 percent support among gun owners, the poll shows.
Backing for gun control and other weapon-related issues is the highest since the Quinnipiac poll began polling on the questions after the Sandy Hook Elementary School shooting in December 2012 that killed 20 students and six adults.
That includes 67-29 percent support for a ban on the sale of assault weapons and 83-14 backing for a mandatory waiting period for gun purchases.
The result also reverses a 47-50 percent measure opposing stricter gun laws recorded in a Dec. 23, 2015, poll.
Another poll released earlier Tuesday showed that a majority of Americans think Congress and President Trump are not doing enough to stop mass shootings.
Seventy-seven percent of those surveyed faulted Congress for its inaction, while 62 percent blamed Trump, according to an ABC News/Washington Post poll.
The poll also showed that 58 percent said the shooting at Marjory Stoneman Douglas High School that killed 17 people — 14 students and three teachers — could have been prevented if stricter gun laws were in place. Another 37 percent said the laws wouldn't have mattered.
But 77 percent said the killings could have been averted if "more effective" mental health screening and treatment were in place.
The shooting at the school in Parkland, Fla., last Wednesday — allegedly by 19-year-old Nikolas Cruz, who authorities said used an AR-15-style rifle to gun down his former classmates — ignited the contentious debate about creating stronger background checks and barring the purchase of assault weapons.
The poll reflects how divisive the issue of banning the purchase of assault weapons is.
The country is split — 50 percent support a nationwide ban and 46 percent oppose one — but broken down by political party, only 29 percent of Republicans would support it, while 71 percent of Democrats and 45 percent of independents would.
Asked if arming teachers would have stopped the attack, 42 percent said yes and 51 percent said no.
Students who survived the Parkland shooting are calling on Trump and Congress to protect them and all students across the country by enacting tougher gun control measures.
They plan a "March for Our Lives" rally in Washington, DC, on March 24.
The White House on Monday said Trump, who ran on a pro-gun platform during the 2016 election, would support tougher background checks for gun buyers.
The ABC/Washington Post poll was conducted by telephone from Feb. 15 to Feb. 18 and surveyed 808 adults.
It has a plus/minus 4 percentage-point margin of error.
The Quinnipiac poll was taken between Feb. 16 and Feb. 19 and surveyed 1,249 voters nationwide. It has a plus/minus 3.4 percentage-point margin of error.


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Follow, interact and join the conversation with Director Jon Favreau as he posts updates from the set of his latest film, Cowboys & Aliens Starring Daniel Craig and Harrison Ford, In Theaters July 29, 2011. Watch trailers, view pictures on the official site.
Cowboy Billie Boem - Cowboy Billie Boem treedt dit jaar natuurlijk ook weer op met een liedjesshow. Bij optredens speelt Bart samen met rasanimator Marcel Sophie live mee met een orkestband (Adje treedt niet op, speelt wel mee op CD). In een grappig western decor maken zij als Cowboy Billie Boem en de Indiaan avonturen mee waarbij de kinderen actief betrokken worden. In een klein uur weet CBB de kinderen (en hun ouders) vol enthousiasme aan het zingen en dansen te krijgen en zo blijkt een succesformule te zijn ontstaan waar een publiek van jong en oud zich heel prima mee weet te vermaken.
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Cuisine inspired by cowboy cooking at Reata Restaurant is a melding of flavors: Southwestern, Creole, Southern, and a traditional Steak House provide a unique fine dining experience. Locations in Fort Worth, Texas and Alpine, Texas. Dine on the rooftop patio in the heart of Sundance Square in Fort Worth or at the Reata Alpine location. Reata is one of the most popular and highly esteemed fine dining restaurants throughout Fort Worth. Check out our catering opportunities and new Southwest cookbook. Southern Cowboy cooking.
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Written in 1974 (basically at the end of the Vietnam war) and influenced by the authors experience during the same war, "The Forever War" describes a war, that lasts not for years, not for decades, but for milliena. The main character of the story is William Mandella, a young soldier who compulsory joined the newly formed UNEF to fight an alien race, the Taurans.
For me this book was something completely new. Normally I prefer books, that are at max. partially about war. That's simply because I hope, that wars won't happen in the future or won't be as cruel like they were in this century or described in this book. But I still wanted to try something completely new for me and wasn't disappointed. Joe Haldeman's story about a war that seems to go on forever was thrilling right from the beginning. He managed to describe the whole atmosphere not just from the point of view of the main character (although Mandella is basically the narator here) but also describes the social environment everyone has to live in. How over-populations are dealt with, how just a few years can change mankind altogether. That's why I wrote "diary-style" because it's not really a diary but the reader gets to know all that explained by just one in the whole story involved character, you see text snippets of orders and so on.


text:
Caswell possesses one of Gower's most popular family beaches and lies conveniently close to Swansea, with its own large pay and display car park at the entrance of Bishop's Wood Nature Reserve.
The sands of Caswell Bay stretch half a mile and are backed by cliffs and wooded valley. The bay has been a very popular resort for bathers since Victorian times, where many day trips were organised for underprivileged workhouse children as well as visits by the Vivian family.
Today's visitors are more likely to be surfers, anglers or young families.
The name Caswell may come from Cresswell or cress stream from the Old English words 'cerse' (cress) and 'wella' (well) and probably relates to the stream that meanders down Caswell valley and out and along the beach to the sea. The stream travels underground for some distance, giving rise to curious bubbling pools along certain stretches of the bay.
Toilets are situated at the car park entrance and boast an outdoor surf shower to rinse down wet suits and salty, sandy beach revellers.
A few beach kiosks sell refreshments and traditional seaside products near the steps that lead down to the sands.
A boathouse is set against the rocky cliffs with adjacent slipways.
Bus access to the beach can involve some walking, as buses generally do not go down the steep road to the beach area, except during July and August. The closest bus stop during the rest of the year is at Caswell Drive at the top of the hill towards Newton.
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At low tide, the eastern side of Caswell Bay is by far the more interesting aspect of the beach to explore - with a shallow cave and some of Gower's more spectacular geology to investigate. It is also along this stretch where starfish can sometimes be found in abundance amongst the many rockpools which form here. Casell was voted as one of 10 UK top rockpool hotspots by The Guardian in 2007.
Beadlet anemones and blennies lock heads with shore crabs, edible crabs and velvet fiddler crabs here. Best of all are the sea slugs that spurt purple ink as a defence mechanism, and even the odd octopus.
An eye should be kept on the incoming tide, however, as this part of the bay is cut off during certain tidal conditions.
John Dillwyn Llewelyn
In 1846 the pioneering photographer from Penllergaer, John Dillwyn Llewelyn, bought the bottom end of Caswell Valley to build an Elizabethan-style mansion. The house, which was named Caswell Cottage was frequently used as a summer residence by John Dillwyn Llewelyn and his wife Emma Thomasina Talbot. Emma was first cousin to the lead pioneer photographer Henry Fox Talbot, who inspired Dillwyn Llewelyn's love of photography. Caswell Cottage was eventually demolished in the early 1960s to clear the site of the current Caswell car park.
Frances Ridley Havergal
Frances Ridley Havergal (1836-1879), a notable English poet and hymn-writer lived in nearby Newton, for a year before her death.
118 reviews of Caswell Bay in Swansea
View detailed surf forecast for Caswell Bay at:


text:
CERTIFIED RISK
White House web security has lapsed because of the government shutdown
Cybersecurity workers have been left out in the cold.
Image: REUTERS/Carlos Barria
Justin Rohrlich
The security certificates authenticating more than 130 US government websites, including a subdomain at whitehouse.gov, have expired during the federal shutdown because the workers tasked with renewing them have been furloughed.
According to Netcraft, the UK-based internet security firm that released the list yesterday (Jan. 16), the number of government sites rendered "either insecure or inaccessible" was up from 80 one week earlier, an increase of 63%. Anyone who navigates over to "pages.mail.whitehouse.gov" will be greeted by the following warning:
pages.mail.whitehouse.gov normally uses encryption to protect your information. When Google Chrome tried to connect to pages.mail.whitehouse.gov this time, the website sent back unusual and incorrect credentials. This may happen when an attacker is trying to pretend to be pages.mail.whitehouse.gov, or a Wi-Fi sign-in screen has interrupted the connection. Your information is still secure because Google Chrome stopped the connection before any data was exchanged.
Image: WhiteHouse.gov
With the government partially unfunded due to the ongoing stalemate between Democrats and Donald Trump over his insistence on spending $5.7 billion for the border wall he has promised supporters, about 800,000 employees across dozens of agencies have been off the job since Dec. 22. Since the furloughed workers are prohibited by law from working—or even accessing their work emails—during the shutdown, the digital safety protocols, known as TLS (Transport Layer Security) certificates, will have to wait to be renewed.
In addition to parts of the official White House website, for which the security certificate expired Jan. 15, the affected sites have impacted the Federal Aviation Adminsitration (FAA), the Justice Department, and the Federal Financial Institutions Examination Council Anti-Money Laundering InfoBase. Each certificate runs about $399 per year.
The TLS certificate for https://manufacturing.gov expired Jan. 14. When a user tries to access the page, a browser warning appears:
This server could not prove that it is manufacturing.gov; its security certificate expired 4 days ago. This may be caused by a misconfiguration or an attacker intercepting your connection.
Image: Manufacturing.gov
An internal Justice Department webpage, at https://ows2.usdoj.gov, is altogether unreachable. Its security certificate, under the aegis of GoDaddy, expired Dec. 17, 2018 and was never renewed. The certificate for https://www.disasterhousing.gov expired Dec. 28.
Paul Mutton, the Netcraft consultant who discovered the expired security protocols, told the Washington Post that the actual number of affected sites could be far higher, as some TLS certificates cover multiple pages for the same agency.
The Department of Homeland Security's Cybersecurity and Infrastructure Security Agency (CISA) has furloughed 43% of its staff, per Axios. The National Institute of Standards and Technology, which manages America's cybersecurity framework, has just 49 of its 3,000 employees on duty.
The government sites have not in fact been compromised, but to many people it certainly will appear that way, Chris Vickery of cybersecurity firm UpGuard, told the Post. "It's likely to be a very big, misunderstood situation. My grandmother, she communicates with friends and gets recipes online. If she went to a government website and saw a warning saying 'This certificate is no good, it could be a bad guy'— she would freeze up."


Square Enix Forums > Games > 25 to Life > 25 to Life - General Discussion > Beta test?
View Full Version : Beta test?
Was there a public beta test for 25 to life?
Not yet, and we don't know if there will be one or not. I believe that Clumsyorchid said they are doing an internal beta right now.
Just to clarify, all titles published by Eidos go through internal testing.


Enjoy the red velvet cookies below as a warm, fresh-baked winter treat, make them to bring to a holiday party, or exchange them at a neighborhood cookie swap.
Preheat oven to 375°F. Whisk together the flour, cornstarch,baking soda, and salt; set aside.
Using a hand mixer set on medium, combine butter, shortening, and sugar until mixture is pale and fluffy, about 5 minutes. Add egg and egg yolk, and mix until just combined.
Add vinegar, vanilla, and food coloring until well blended, and slowly add dry ingredients to the mixture.
Add chocolate chips, and mix with a spoon or a spatula. Mold 1½ tablespoons of dough into a round shape, without flattening, and place on a cookie sheet; repeat for each cookie. Bake for 8-9 minutes.


Artists in the Community; Training Artists to Work in Alternative Settings, published by Americans for the Arts, Washington DC: 1996.
The Everyday Work of Art by Eric Booth, published by Sourcebooks, Inc., 1999.
Giving Cues; Recommended Guidelines for Writing and Designing Performance Materials for Young People by John Carr and Lynne Silverstein published by the Kennedy Center, 1998.
How to Make Money Performing in Schools by David Heflick, Orient, WA: Silcox Productions, 1996.


Free Dubstep TRG-16 Drum Pads for NanoStudio iPhone and iPad app. We enjoy our NanoStudio app so much but felt it was missing more options for the TRG-16 Drum Pads. So what did we do? We made an awesome Dubstep kit just for NanoStudio as a free download. Hows that! Just add to your cart and checkout. It's free and you get a download link immediately.