text:
Inquiry of weapons smuggling to expand
ATF testimony stirs new questions
By Jerry Seper - The Washington Times
The closed-door testimony of ATF's acting director, saying that the Justice Department was obstructing a congressional investigation, has prompted an expansion of that ongoing probe into the controversial "Fast and Furious" weapons-smuggling operation.
"We'll go wherever the investigation takes us," said Sen. Charles E. Grassley of Iowa, ranking Republican on the Senate Judiciary Committee and a key inquisitor in probing the operation, during which guns, including AK-47 assault rifles, were "walked" into Mexico.
He said the weekend testimony of Kenneth E. Melson, acting director of the Bureau of Alcohol, Tobacco, Firearms and Explosives, had corroborated information that "more agencies within the Justice Department may have been involved in allowing guns to fall into the hands of known straw purchasers."
A spokesman for Rep. Darrell E. Issa, California Republican and chairman of the House Oversight and Government Reform Committee, said Thursday that the Melson testimony "raises new questions" about the scope of the program and certainly "justifies an expansion of the investigation."
"After talking with the acting ATF director, I think we have a greater insight into what happened and what questions need to be asked to lead to some final answers as to who authorized this program and why," said spokesman Frederick Hill, whose boss also has been a key player in the ongoing investigation.
Meanwhile Thursday, Mexican police released a videotaped interview of Jesus Enrique Rejon Aguilar, in which the recently captured No. 3 leader of the Los Zetas drug cartel said "all the weapons" the Zetas use were "bought in the United States" and that "even the American government itself was selling the weapons."
Mr. Grassley and Mr. Issa have been investigating accusations that Operation Fast and Furious, part of an anti-gun initiative known as "Project Gunrunner," allowed thousands of weapons to be purchased by "straw buyers" in Arizona and Texas that later were "walked" unchecked to drug smugglers in Mexico.
At least three of those weapons, including two AK-47 assault rifles, later were found at the site of separate shootings that claimed the lives of U.S. Immigration and Customs Enforcement Agent Jaime Zapata, who was killed by Rejon Aguilar's Zetas, and U.S. Border Patrol Agent Brian A. Terry.
The lawmakers also want to know what role other federal law enforcement agencies, including the FBI and the U.S. Drug Enforcement Administration (DEA), played in the operation.
Last weekend, Mr. Melson said during two closed-door interviews that the senior leadership at the agency wanted to cooperate in the congressional probe but were stopped by Justice Department officials who took control of all briefing and document requests. Mr. Grassley and Mr. Issa, in a letter to Attorney General Eric H. Holder Jr., accused Justice of "muzzling" the director.
Mr. Melson confirmed information the committee has been investigating that some of the suspected gun traffickers targeted by ATF in the Fast and Furious probe may have been working with the FBI and DEA without ATF's knowledge.
He also confirmed concerns expressed by several ATF agents during their recent testimony before Mr. Issa's committee that while they witnessed the transfer of weapons from the straw buyers to others, they were not allowed to follow the guns further as they made their way to Mexico. He told the investigators he became aware of "this startling possibility" only after the killing of Mr. Terry and the indictments of the straw purchasers.
"We have very real indications from several sources that some of the gun-trafficking 'higher-ups' that the ATF sought to identify were already known to other agencies and may even have been paid as informants," Mr. Grassley and Mr. Issa wrote in the letter to Mr. Holder. "The acting director said ATF was kept in the dark about certain activities of other agencies, including DEA and FBI."
In the videotape, Rejon Aguilar told Mexican police that his gang - considered that country's most violent - had armed itself with weapons "bought in the United States."
Mexican law enforcement authorities have long accused the U.S. of failing to control the flow of weapons into that country - many of which have been used in a brutal turf war over the control of drug smuggling routes into the United States that so far has cost more than 35,000 lives.
In the videotaped interrogation, first reported by the Los Angeles Times, Rejon Aguilar, a former member of an elite Mexican paratroop and intelligence battalion known as the Special Air Mobile Force Group, told Mexican police, "Whatever you want, you can get" from the U.S.
Mr. Grassley noted that it has been "well documented" that hundreds of guns may have crossed the border into Mexico because of the "reckless policy known as Fast and Furious," but the hundreds of thousands of guns used by Mexican drug cartel members are not primarily from U.S.-based gun dealers.
Instead, he said, evidence shows that other sources, including some in Central America, help supply the weapons.
Rejon Aguilar was taken into custody Sunday in the Mexico City suburb of Atizapan "without firing a shot," according to Mexican federal police. He was one of Mexico's most-wanted men, and the U.S. Justice, State and Homeland Security departments had announced a reward of up to $5 million for his arrest and conviction.
Mexican police said he was "connected to the attack" in the daylight ambush in Mexico of Zapata and his partner, ICE Agent Victor Avila Jr., who was wounded. They said Rejon Aguilar was in charge of operations for the Zetas in San Luis Potosi when the American agents were ambushed.
Neither of the U.S. agents was armed, as the Mexican government does not allow U.S. law enforcement personnel to carry weapons.
More than two dozen Zetas have been arrested in the case. They include Julian Zapata Espinoza, identified as the gang's cell leader in San Luis Potosi, and the gang's suspected paymaster, Mario "El Mayito" Jimenez.
• Jerry Seper can be reached at jseper@washingtontimes.com.


text:
\section{Introduction}
Quantum gases of polar atoms and molecules in their rovibrational
ground-state represent a unique opportunity to study the interplay of
long- and short-range interactions in the highly controllable trapped
gas environment. Early experiments used magnetic dipolar atoms
\cite{griesmeier2005,veng2008,fattori2008,pollack2009} which have
observable effects in spite of intrinsically weak dipole moments. Recently,
heteronuclear molecules with very large electric dipole moments have
been realized by a number of groups
\cite{ospelkaus2008,ni2008,deiglmayr2008,lang2008,ospelkaus2010}. The
goal of a quantum degenerate system of polar molecules with strong
$1/r^3$ long-range dipole-dipole forces therefore seems close at hand.

The attractive force of polar molecules in the head-to-tail
configuration can lead to collapse of the system
\cite{lushnikov2002}. However, as suggested by Wang et
al. \cite{wang2006}, a one-dimensional optical lattice that creates a
multilayered stack of pancake systems can stabilize the situation. If
we apply a field to polarize the dipoles perpendicular to the layers
then the intralayer interaction will be purely repulsive, whereas the
interlayer part will be attractive but with the optical lattices
separating the dipoles in different layers. This setup is presently
being implemented experimentally.  As discussed in
\cite{wang2006}, the dipole-dipole force forms bound chains
and the system effectively behaves as a liquid of chains with
resemblance to rheological fluids. In the case of bosons we expect the
chains to Bose condense at low temperatures. However, if we have
fermionic polar molecules the situation is less clear since one would
expect a Bose-Fermi mixtures with various bound complexes
\cite{santos2010}.  The dipole potential can also now be inverted to have a repulsive core with the use of laser fields \cite{cooper2009,sarma2009}, which offers different physics possibilities than the ``natural'' dipole orientation.

If we simplify the problem to consider just two adjacent layers we have a system
with $1/r^3$ interactions that mimics the long-range
$1/r$ interactions in graphene
\cite{novoselov2006} and semiconductor bilayers \cite{ye2010}. In the
semiconductor case bound states of exciton pairs with non-zero dipole
moments have been considered in connection with organic interfaces and
quantum wells \cite{yudson1997}. For small coupling strength it was
concluded that no bound state exists \cite{yudson1997}. This was also
stated in several recent works concerning cold polar molecules
\cite{wang2006,wang2007,santos2010} where the conclusion was based on a Gaussian
ansatz. However, at small coupling the particles are strongly
delocalized and a localized Gaussian is therefore not a good
approximation \cite{jen04}. To make matters worse, the potential
integrates to zero over the plane and thus
at small coupling the Landau criterion \cite{landau1977} for
a bound state in two-dimensional systems is not applicable.
Using scattering theory it was recently shown that
a bound state presumably exists for arbitrarily small moments
\cite{wang2009,ticknor2009}.  However, the scattering theory is
intricate and does not yield straightforward information about the
behavior of the two-body bound state wave function.

The purpose of the present work is to compute and explain the basic
properties of two-body systems used as the fundamental building blocks
for layered dipolar structures.  We shall employ simple model
potentials to extract universal properties, point out where details of
the potentials are needed, and illustrate relations between wave
functions, energies, and radii.  We shall use square well, harmonic
oscillator and $1/r$-potentials in two dimensions, and compare to
solutions of the true dipole-dipole potential. We briefly sketch the
model solutions, discuss energies, threshold properties, and various
implications.

\begin{figure}
\centerline{\epsfig{file=PotPlot2.eps,scale=1.2}}
\caption{Potentials of different shapes, dipole-dipole potential ($V_{dip}$),
two square wells ($V_{att}$, $V_{rep}$), harmonic oscillator
($V_{ho}$), and $1/r$ ($V_{1/r})$. All potentials have the nodes at
$r=R_s$, the same attractive and repulsive volumes, and net volume
zero. }
\label{fig1}
\end{figure}

\section{Model solutions}

We solve the 2-dimensional (2D) Schr\"odinger equation, which is
possible to do analytically with several model potentials.  We use
cylindrical coordinates $(r,\theta)$ and separate the total
wave function $\Psi=R(r)\Phi(\theta)$ into radial $R(r)$ and angular
$\Phi(\theta)$ parts.  With $\Phi(\theta) =
\exp(im\theta)/\sqrt{2\pi}$, where $m$ is an integer, the stationary
radial Schr\"odinger equation becomes:
\begin{equation}
\left[-\frac{\hbar^2}{2m}\left(\frac{d^2}{dr^2}+\frac{1-4m^2}{4r^2}\right)
 +V(r)\right]u(r)=Eu(r),
\label{schrod1}
\end{equation}
where $u=\sqrt{r}R(r)$ is the reduced radial wave function, $E$ is the
energy, and $V(r)$ is the potential, assumed to be spherically symmetric. We consider
potentials with net volume equal to zero, $\int V(r)d^2r=0$, just as for
the dipole-dipole potential, i.e.
\begin{equation} \label{e25}
 V(r) = D^2\frac{r^2-2d^2}{(r^2 + d^2)^{5/2}} \; ,
\end{equation}
where $D$ is the electric dipole moment and $d$ is the distance
between the two different layers containing the particles.  This
potential is in Fig.~\ref{fig1} compared with square well, harmonic
oscillator, and $1/r$ potentials at distances less than their common
node at $R_s \equiv d\sqrt{2}$.  The equal volume conditions relate
strengths and shifts for given radial shapes. Thus we have $D^2=V_s
R_{s}^{3}(3/2)^{3/2}/2$, and for the square well shape, the small,
$V_s$, and large, $V_l$, distance absolute strength values are related
by
\begin{equation}
\frac{V_s}{V_l}=\left(\frac{R_l}{R_s}\right)^2-1 \;,
\label{PotVol}
\end{equation}
where $R_l$ is the radius where the outer square well ends.  The attractive
part is the most interesting and we shall only use the harmonic and
$1/r$ potentials with the square barrier shape for $R_l>r>R_s$ as illustrated in Fig. \ref{fig1}.

One of our main concerns is the appearance of a bound state at small
couplings. We therefore only consider the most attractive $m=0$
potential which simplifies to
\begin{equation}
\frac{d^2u}{dr^2}+\left(\frac{1}{4r^2}+k^2\right)u=0,
\label{schrod2}
\end{equation}
where $k^2=2m(E-V(r))/\hbar^2$ depends on $r$.

Let us now first solve completely the piecewise constant potential in
Fig.~\ref{fig1}
for use as
a reference standard.  Then the wave functions in the three different
regions of space are the Riccati Bessel functions of order $-1/2$,
which means that the solutions for $R(r)$ are various Bessel functions
of order 0 depending on the region of space:
\begin{equation}
R=\left\{ \begin{array}{ll}
AJ_0(k_1r) & r\leq R_s \\
BI_0(k_2r)+CK_0(k_2r) & R_s< r \leq R_l \\
DK_0(k_3r) & r>R_l\;,
\end{array}\right.
\label{WFs}
\end{equation}
where $J_0,I_0,K_0$ are ordinary and modified Bessel functions of the
first and second kind, respectively.  The coefficients $A, B, C,$ and
$D$ are determined by matching at the region boundaries and by
normalization. The wavenumbers, $k_i$, are the absolute values of $\bm
k$ in the regions.  Matching logarithmic derivatives leads to the
transcendental equation for the energies:
\begin{eqnarray}
\frac{k_2R_l K_0(k_3R_l) K_1(k_2R_l)-k_3R_l K_0(k_2R_l) K_1(k_3R_l)}
{k_3R_l I_0(k_2R_l)K_1(k_3R_l)+k_2R_l K_0(k_3R_l)I_1(k_2R_l)}=\nonumber \\
\frac{k_2R_s J_0(k_1R_s)K_1(k_2R_s)-k_1R_s K_0(k_2R_s)J_1(k_1R_s)}
{k_2R_s J_0(k_1R_s)I_1(k_2R_s)+k_1R_s I_0(k_2R_s)J_1(k_1R_s)}.
\label{e35}
\end{eqnarray}
This formula and the wave function, Eq.(\ref{WFs}),
are valid for the potential $V_{att}$ in Fig. \ref{fig1}.
For $V_{rep}$ from Fig. \ref{fig1}, one merely
takes the analytic continuation of the relevant Bessel function.
Expanding the solution for small strengths results in
\begin{equation}
-E=E_0\exp\left[-\frac{E_0}{V_l}\left(2+\frac{E_0}{V_l\ln(R_l/R_s)}\right)\right],
\label{expansion}
\end{equation}
where $E_0=2\hbar/(mR_l^2)$. Eq.(\ref{expansion}) with the second
order potential strengths replaces the Landau expression when the
potential integrates to zero\cite{landau1977}.

Analytic solutions can also be found when the short-distance part of
the potential is substituted by a harmonic oscillator potential,
$V_{ho}(r)=2V_s[(r/R_s)^2-1]$ and a $1/r$ potential,
$V_{1/r}(r)=V_s(1-R_s/r)$. In both cases the potentials are zero for
$r=R_s$ and $V_s$ is the strength of the box potential with the same
volume below $R_s$. The radial wave functions for $r<R_s$ are given by
$R(r) = N \exp(-z/2) M$, where $M$ is the confluent hypergeometric
function, or Kummer function $M(a,b,z)$ with three arguments. We have
$b=1$ and $a$ and $z$ are:
\begin{eqnarray}
a&=&\frac{1}{2}-\frac{E+2V_s}{4\hbar}\sqrt{\frac{mR_s^2}{V_s}}\;,\;\;
 z= \frac{2r^2\sqrt{mV_s}}{\hbar R_s} \\
a&=&\frac{1}{2}-\frac{R_sV_s}{\hbar}\sqrt{\frac{m}{2(V_s-E)}}\;,\;
 z= \frac{r\sqrt{8m(V_s-E)}}{\sqrt{\hbar^2}}  \;
\end{eqnarray}
for oscillator and $1/r$ potentials, respectively. This is the
solution vanishing at $r=0$. Matching at $r=R_s$ with the square
well solutions for $r>R_s$ leads to trancendental equations for the
energies.

\begin{figure}
\centerline{\epsfig{file=energy2.eps,scale=1}}
\caption{Energies of states as a function of $V_s$ in
units of $\hbar^2/(m R_s^2)$.  Right and left correspond to $V_{att}$
and $V_{rep}$, respectively, of Fig. \ref{fig1}.  The dotted grey
lines are the calculated asymptotic values for the square well states.
The solid red lines are the square well energies with $R_l=2R_s$, the
dashed green lines are square well energies with $R_l=3R_s$, and the
black double-dotted line the dipole-dipole potential results. The
inset is a zoom of small energy plotted logarithmically (values in
points colored as in the main plot), the lines are from
Eq. (\ref{expansion}). The magenta and blue points, from $1/r$ and
oscillator potentials, appear together with the dipole points found for
$R_l=3R_s$($V_l$ is from Eq.~(\ref{PotVol})), and the green square well points.  The black line
for the dipole potential is to guide the eye.}
\label{EV1fig}
\end{figure}

\section{Energies}

The energies obtained from Eq. (\ref{e35}) are shown in
Fig.~\ref{EV1fig} as function of $V_sR_s^2$, or equivalently of volume
of either attraction or repulsion.  We choose $R_l=2R_s$ or $R_l=3R_s$, as indicated, and use $V_l$
from Eq.(\ref{PotVol}).  Increasing $V_s$ for both natural and inverted
potentials leads to more bound states which more and more are
determined from the attraction alone and independent of the confining
barriers.  The condition, $J_0(k_1R_s)=0$, determines $k_1$ for
$V_{att}$ in Fig. \ref{fig1} and thereby the bound state energy $E_n$
is related to the nodes of the Bessel function, i.e.
\begin{equation}
E_n=-V_s+\frac{\hbar^2(j_{0,n})^2}{2mR_s^2},
\label{besselE}
\end{equation}
where $j_{0,n}$ is the $n$th zero of $J_0(x)$.  This asymptotic limit
of straight lines of slope equal to one is valid for an infinitely
high barrier.  The ground state is the deepest and agrees well with
the asymptotic limit, but for the excited states the well must be
deeper to reach the limit, around -150 for 1\% agreement for the first
excited state.

For $V_{rep}$ in Fig. \ref{fig1}, where the repulsion is for $r< R_s$
and the attractive well is at $R_s<r< R_l$, no confining barrier
exists at larger distance.  Here, the bound state wave function is
$R(r)=AJ_0(r)+BN_0(r),$ where $N_0(r)$ is the Neumann function.  In
the deep well limit, the wave function must vanish at both endpoints
where large energy implies large arguments of both the Bessel and
Neumann functions.  Then $k_2^2(R_l-R_s)^2=n^2\pi^2$ or equivalently
\begin{equation} \label{e75}
E_n=-\frac{V_s}{(R_l/R_s)^2-1}+\frac{n^2\pi^2\hbar^2}{2m(R_l-R_s)^2},
\end{equation}
where the slopes of the lines are dependent on $R_l$ and therefore different
from the $V_{att}$ case. These estimates are much further off than the similar estimates for $V_{att}$.
For the difference between the energies and the estimate to be 1\% for
the ground state, the depth of the well needs to be around 100.  For
that level of agreement in the first excited state, the well depth
needs to be around 250.

The result for small strengths are shown in the inset of
Fig.\ref{EV1fig}.  One bound state is always present for all
potentials even when the strength is approaching zero. The dependence
on both strengths and radius ($R_l$) is substantially stronger for the
inverted potentials.  The very small energies close to threshold obey
the limiting linear dependence from Eq. (\ref{expansion}).  They are
extremely small due to the zero net volume, and hence difficult to
obtain accurately.  The numerical results for the dipole potential almost coincide with
the energies for the other potentials. On the scale of
the inset the energies are exceedingly small and difficult to
calculate numerically, especially for the inverted dipole potential.  For larger strengths $mV_s R_s^2/\hbar^2 >2$ on the inverted side and
$mV_s R_s^2/\hbar^2 > 10$ on the natural side, we found that the
energies rather precisely are given by $E=-c_0 D^2/d^3\exp(-c_1\hbar^2
d/(mD^2)$, where $(c_0,c_1)=(0.85,9.86),(0.012,19.9)$ for the natural
and inverted potentials, respectively.

The values in the experiments \cite{ni2008}
correspond to strengths of about $V_s R_{s}^{2}m/\hbar^2=1.9$ or
$m R_{s}^{2} E/\hbar^2\sim -0.6$ (Fig.~\ref{EV1fig})
which is on the verge of universality (see Fig. \ref{Er2}), although
current temperatures are too high to maintain
such a weakly bound state \cite{ni2008}. Fortunately, systems with
larger $D^2/d^3$ can be explored where
the bound state energy is much larger and obeys the analytic formula given
above.

\begin{figure}
\centerline{\epsfig{file=AllPotRes.eps,scale=1.2}}
\caption{The lowest three bound state energies as function of strength
for different potentials, square well (solid red), harmonic oscillator
(dashed blue), $1/r$ (dotted magenta), and dipole (double-dotted black).
The square well barrier is the same in all cases, $R_l=2R_s$.}
\label{diffPot}
\end{figure}

These computations are also carried out for harmonic oscillator and
$1/r$ potentials at small distance with a square well at larger
distances.  The condition of exponentially vanishing wavefunction with
$r$ implies that the first argument $a$ of the Kummer function must be
a non-positive integer $-n$ counting the bound states. Then
$M$ reduces to the Laguerre polynomials.  The energies become
\begin{eqnarray}
E_{ho}&=&2[-V_s+\sqrt{\frac{V_s\hbar^2}{mR_s^2}}(2n+1)], \label{e45} \\
E_{1/r}&=&V_s-\frac{2mV_s^2R_s^2}{\hbar^2(2n+1)^2}, \label{e55}
\end{eqnarray}
where $n$ can take the values 0,1,2, etc. These energies are only
approached asymptotically as for the square well in Fig.~\ref{fig1}.
They are highly potential dependent for well-bound states as the
barrier essentially has no influence on these energies, see
Fig.~\ref{diffPot}.  The potential in Eq.(\ref{e25}) leads to energies
between those of harmonic and square well potentials. Thus limits to
realistic potentials can be provided by analytic models.

However, in the limit where $V_s\rightarrow 0$ both energies in
Eqs.(\ref{e45}) and (\ref{e55}) approach zero from positive values. The
approximations are too crude, and we replace the $r>R_s$ potentials by the
corresponding square well.  We then find numerically that the energies
for both these potentials always remain negative corresponding to bound
states for all values of $V_s$. Thus all the investigated potentials
with zero net volume always have at least one bound state.

\section{Threshold properties}

The weakly bound states often reveal unique physics as for example
Efimov and halo states with universal properties.  The number of nodes
as function of volume can be found rather precisely from
Eqs.(\ref{besselE}-\ref{e55}) by solving for $n$
with $E_n=0$. The explicit result for harmonic oscillator, $2n+1
= \sqrt{m|V_s|R_s^2}/\hbar$, whereas for the $1/r$
potential the right-hand side is a factor $\sqrt{2}$ larger.
Thus these potentials would have the same number of bound
states if the volume of the oscillator were twice as large as that of
the $1/r$-potential.  The dipole-dipole potential seems from
Fig.~\ref{fig1} to have intermediate properties. However, the
dependencies on strength for each energy differs substantially, see
Eqs.(\ref{e45}) and (\ref{e55}).

The same extrapolation to the threshold can be applied to the
wave functions. We then find that the mean square radius is given as
$<r^2/R_s^2> = 1/2$ for the oscillator and $5/8$ to leading order for
the $1/r$ potential.  These threshold radii, obtained from asymptotic
strong binding, are however qualitatively completely wrong when the
energy is sufficiently close to zero.  In Fig.~\ref{EV1fig} the
straight lines approaching zero bend over as the system attempts to
stay bound for a weaker potential.  The wave function is
correspondingly leaking out under the barrier as the energy approaches
zero.  This is the effect producing nuclear halos
\cite{jen04} where the mean square radius for two particles in three
dimensions becomes inversely propertional to the energy. The analogue
here is that most of the probability is found for $r>R_l$ where the
wave function is $K_0$. This means that the mean square radius then
approaches \cite{nie01}
\begin{equation} \label{e85}
  <r^2> =  \frac{\hbar^2}{2m|E|} \frac{\int_0^{\infty} x^3 |K_0(x)|^2 dx }
 {\int_0^{\infty} x |K_0(x)|^2 dx }   = \frac{1}{3} \frac{\hbar^2}{m|E|} \;,
\end{equation}
which is a universal result independent of both the particular ($s$-wave)
state considered and the shape of the attractive potential.

\begin{figure}
\centerline{\epsfig{file=Er2plot.eps,scale=1.2}}
\caption{Binding energy multiplied with $<r^2>$ plotted against the
binding energy for the lowest bound states for the square well
(parameters in the legend).  The crosses are results for the dipole
potential.  The scale on the abscissa is logarithmic, with small
binding energies to the left.}
\label{Er2}
\end{figure}

The rate of approach to the asymptotic value in Eq.(\ref{e85}) is seen
in Figure \ref{Er2}.  Large binding energies correspond to wave
functions located in the attractive well. As the threshold is
approached the wave function begins to leak out and eventually ends up
in the universal limit in Eq.(\ref{e85}).  However, how that limit is
approached depends on the presence of a barrier. Without a barrier
($V_{rep}$ from Fig. \ref{fig1}), all states, both ground and excited,
approach the weak binding limit in the same way.  This is precisely
the halo effect \cite{jen04}.

The similar approach to universality is found for the ground state
for  $V_{att}$ from Fig. \ref{fig1} since then the barrier vanishes with the binding energy.
For excited states of $V_{att}$, the barrier remains finite for
vanishing binding energy.  High excitation goes together with high
barrier which causes even the weakly bound states to remain localized
in the attractive region.  The approach to universality is delayed by
many orders of magnitude in binding energy.  During the approach the
radius remains small for small energies and consequently the curves
dive below the universal limit before the eventual approach.  These
features become more pronounced with excitation energy.

In Figure \ref{Er2} we also show results for different values of
$R_l$, still with $V_l$ adjusted to maintain zero net volume.  The
curves for the ground states are roughly identical. This is also seen
at higher energies for the first excited state, but eventually at
small energies a wider barrier delays the escape of the wave function
even though the barrier is correspondingly smaller.

\begin{figure}
\centerline{\epsfig{file=R2plot.eps,scale=1.20}}
\caption{ The probability, $\int_0^{R_s}|u|^2dr$, of being in the
attractive part of the $V_{att}$ potential for the lowest three bound
states shown as a function of $\langle r^2 \rangle$.  For $V_{rep}$,
all states behave as the ground states of both potentials.}
\label{R2}
\end{figure}

The rate of approach to the universal limit at threshold is further
illustrated in Figure \ref{R2}.  The probability distribution from the
wavefunction is moving slower than the distribution in the mean square
radius integral.  The bulk of the probability can stay in the
attractive well while the root mean square radius is much larger than
the radius of the attraction.  Thus the tail properties are crucial.
These effects are enhanced for excited states because the final
expulsion of the wave function to the external region comes much later
for states constraint by a large barrier.

The formal connection is that the wave function essentially is $J_0$
until the energy is very small where it has to change to $K_0$, see
Eq.(\ref{WFs}). Computation of mean square radius then employs $J_0$
for normalization but $K_0$ for the $r^2$-distribution. Thus
neither short nor large-distance properties are sufficient for a
description in this transition region.

\section{Implications for many particles}

Several conclusions are immediately deduced from our model systems.
First of all, at least one bound state must appear in 2D for any
potential with zero net volume.
Thus, in contrast to the statements
in \cite{yudson1997,wang2006,wang2007,santos2010}, one bound state is
always present in a bilayer with dipoles oriented perpendicular to the
layers.  This in turn means that arguments based on the existence of a
critical strength for binding should be re-considered.  Furthermore,
since a large dipole moment implies a large strength, several
two-body bound states will be present. This must be taken into account
in simulations of configurations of actual systems where a finite
temperature might lead to population of different excited states.
In practice, finite temperature in the system will put a natural limit
on how small binding energies one needs to consider, i.e. for
$|E|<k_B T$ the bound states are thermally dissociated into the continuum
and therefore largely irrelevant.

Second, a positive net volume still allows bound states in two
dimensions.  However, now it is necessary to have a non-zero minimum
attraction where the strength would increase with the net volume.
This resembles the situation in three-dimensional quantum mechanics.

Third, the structure of many particles in layers are strongly
influenced by their pair interactions.  The absence of a critical
interaction strength for binding implies that a phase transition from a superfluid to a dipolar chain liquid cannot
occur in contrast to the suggestion in \cite{wang2006,wang2007}.
Furthermore, the presence of bound states in bilayers for all
strengths immediately implies that chains in multilayers will also be
present for all couplings.  We would therefore expect the system
to always be a dipolar chain liquid.  As all the individual chains can
form immediately the chain-chain interaction becomes interesting and
necesary to include in careful future investigations.

We can in fact give an upper bound on the binding energy of a chain of $M$
particles in $M$ different layers. The scaling of two-body energy
with layer distance is $E(nd)=E_2/n^2$, with $n$ an integer giving
the distance in equally spaced layers a distance $d$ apart. Here $E_2$
is the two-body energy we have calculated above which depends on the
coupling strength. Taking the large $M$ limit, the upper bound is
\begin{equation}
E_M=E_2\,M\sum_{n=1}^{\infty} \frac{1}{n^2}=\frac{\pi^2}{6}M\,E_2.
\end{equation}
This estimate of the energy agrees well with the calculation of \cite{wang2006} where the harmonic
approximation was at small couplings for $M=2$ and $M=81$.

Fourth, the inverted potential with $V_{rep}$ in Fig. \ref{fig1}
with repulsion at small distances and an intermediate attractive pocket
also has at least one bound state for any strength.  In the
bilayer system with a finite density of fermionic
polar molecules in each layer, Ref.~\cite{sarma2009}
found an interesting particle-hole
coherent state.  The density used there was chosen small so
intralayer interaction is negligible and the focus was on the
interlayer repulsion corresponding to a barrier at small radii and
an attractive pocket outside. In \cite{sarma2009} the presence of
bound states shown in this paper was ignored.
In a real system at finite temperature this coherent state could
probably exist at low dipole strength. However, at larger strengths
the bound states must be taken into account and one would presumably
have instead an interacting gas of bound pairs behaving as a
superfluid.

Fifth, the bound states become extremely extended as the energy gets
sufficiently close to zero. Such delocalized two-body
states can in turn enter into complicated multi-particle complexes\cite{wun10}.  A
bound three-body system of two particles in one plane and one in
between in the adjacent plane is therefore possible. This presupposes
that the repulsive intraplane interaction between these extended
structures is less than two times the two-body binding energy that
created the two-body bound states.  This sort of Y-junction
configuration can be very interesting in thermodynamic considerations
of chains as it will contribute non-trivially to the entropy and can help lower
the free energy.  Full quantum studies of such configurations are
therefore very relevant and worth pursuing.

Sixth, the optimum conditions for interesting multi-particle
structures are probably in the regime close to the threshold for
binding of the second state. This can be below the threshold where
additional attraction from other particles would lead to binding in
analogy to Borromean three-body systems where the two-body subsystems
are unbound \cite{nie01,jen04}.  It can also be for slightly larger
attraction and with a bound two-body state since such a system still is
spatially extended and in a sense rather similar to the unbound
continuum state. The latter case is analogous to the extremely weakly
bound atomic helium dimer where the trimer becomes well bound but with
a very weakly bound and spatially extended excited state
\cite{nie01,jen04}.

Seventh, the regime of weak binding, strong delocalization and large
root-mean-square radius exhibits universal features independent of
the shape of the potentials. The same type of universality is likely
to exist for multiple bound states but much finer tuning is probably
required to reach these structures.

\section{Conclusions}

Presently experimentalists are working to produce layered systems of dipolar molecules.
We use simple model potentials to study the bilayer case with
dipoles polarized perpendicular to the layers.  We find the solutions and calculate properties of the wave functions and in
particular binding energies and radii as functions of dipole moment or
strength of the potentials. Realistic potentials are used to test the
generality of our results.

We conclude that there always is a bound state for all strengths of
the dipole-dipole potential.  We find that the wave functions of both
ground and excited states show universal behavior at zero energy as
they basically reside where the potential has become vanishingly
small.  To access this universal regime the dipole strength must be
tuned around the threshold for a bound state to appear.  The extended
wave functions indicate that three or more particle complexes are
possible in chains and in bilayers.  The repulsive in-plane
interaction becomes interesting in connection with these structures.
In any case the tuning of interactions to universal regimes emphasizes
the close analogy to the physics studied through the well-known
technique of Feshbach resonances.

\acknowledgments

NTZ is grateful to B. Wunsch, D.-W. Wang and E. Demler for numerous discussions.

redpajama_set_name: RedPajamaArXiv


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Published at Saturday, April 20th, 2019 - 1:04 PM. 2002 Wiring Diagram. By Billy L. Stokes.
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Shaykh Yasir Qadhi now moves to the final part in the series related to the famous Battle of Tabuk.
The death of the Messenger of Allah ﷺ.
The conquest of Baitul Maqdas .
Two plagues that would eliminate .
A fitnah that no house of the Arabs (Muslims) will be unaffected by it.
A truce between Muslims and Romans."
A prominent incident that transpired in the duration of Tabuk 20 nights was related to Abdur Rahman ibn Awf RA what was this coveted privilege and honour? He was only among the two behind whom the Prophet ﷺ prayed in his lifetime.
Also, in this time,Abdullah dhul be Jardain died and the Prophet ﷺ showed his ultimate care and affection for his people by giving him a befitting burial.
On the way back from Tabuk, a number of events unfolded. The Prophet ﷺ passed by Al Hijr, the place of Thamud and the people of Saleh. The Sahabas were perplexed and enquired him about the same. What did the Prophet ﷺ answer? What was the wisdom behind this? Shaykh Yasir answers.
Another appalling incident that happened was the assassination attempt made on the Prophet ﷺ by the Munafiqun. When the Prophet ﷺ was atop a cliff on a dangerous location along with Ammar ibn Yasir and Hudhayfa, some bandits attempted to take charge of the camel of the Prophet ﷺ. They were going to throw the Prophet ﷺ from the cliff and obviously they failed badly due to Allah's help.
The Prophet ﷺ finally returned back to Madinah after almost 50 to 60 days and he was welcomed rejoicing by the people of Thaniyatul Wada'a.


This topic contains 8 replies, has 2 voices, and was last updated by han 5 years, 6 months ago.
I really love your Celebrate template ! But there's one thing that is bugging me. I want to change custom header and have it for all resolutions. I mean, if header is 1920px wide and my screen is only 1600px, it will automaticly adapts to that resolution. Because now, I can't see the whole header image and if I zoom out, I can even see 3 header images and that isn't nice. I hope you got what I just said and you'll be able to help me.
Thank you a lot ! But even with this, I still need to zoom out to see whole image. Is there any way to shrink it for lower resolutions, or I need to replace the image with smaller one ?
Can you provide the site url?
The topic 'Custom header (Celebrate)' is closed to new replies.


text:
Hearne, Texas
Downtown Hearne, Texas (2017)
Location of Hearne within Texas
0.00 sq mi (0.01 km2)
295 ft (90 m)
1,056.80/sq mi (408.01/km2)
UTC-6 (Central (CST))
UTC-5 (CDT)
48-32972 [3]
1358979 [4]
www.cityofhearne.org
Hearne (/hɜːrn/ hurn) is a city in Robertson County, Texas, United States. As of the 2010 census, the city population was 4,459. The city is named for a family that settled in the area in the 19th century and promoted the construction of rail lines through the city.
Hearne is located on land that initially belonged to politician and soldier José Francisco Ruiz. By the 1840s, a tavern was located there and it also served as a general store and post office. The Hearne family moved to the area in the 1850s, purchasing 10,000 acres and operating cotton plantations. Christopher C. Hearne wanted a railroad line built through the area, but the Civil War started before the railroad could be constructed. His widow later gave 700 acres to the Houston and Texas Central Railway.[5]
With the construction of a depot in Hearne in 1868, businesses began to open, including a hotel, saloons, churches and a cotton gin. Two rail lines met in Hearne by the 1870s. Hearne's population was 2,129 in 1900 and 3,511 in 1940. Between 1943 and 1946, a prison camp operated near the city limits and held several thousand German prisoners of war. Agricultural and manufacturing businesses came to Hearne by the 1960s. By 1990, over 5,000 people lived in Hearne; the population was 4,690 in 2000.[5]
Wal-Mart closure
On New Year's Eve 1990, the Wal-Mart in Hearne closed. After closure, the store was converted into the current Hearne High School.[6] Merchants in downtown Hearne by that time had already folded their businesses because they were unable to compete with Wal-Mart.[7] The New York Times reported that out of more than 1,500 Wal-Mart stores in the nation, the Hearne store was one of six that had closed.[6]
Drug sweeps and ACLU lawsuit
In November 2000, 15 African-American residents of Hearne, Texas, were indicted on drug charges after being arrested in a series of "drug sweeps". The ACLU filed a class action lawsuit, Kelly v. Paschall, on their behalf, alleging that the arrests were unlawful. The ACLU contended that 15 percent of Hearne's male African American population aged 18 to 34 (and at least one woman) were arrested based on the "uncorroborated word of a single unreliable confidential informant coerced by police to make cases." The government had promised the informant leniency on a burglary charge and a hundred dollars in cash in exchange for each suspect he helped convict.[8]
On May 11, 2005, the ACLU and Robertson County announced a confidential settlement of the lawsuit, an outcome which "both sides stated that they were satisfied with." District Attorney John Paschall dismissed the charges against the plaintiffs of the suit. He also admitted that the witness had tampered with evidence and failed a polygraph test.[8] [9] A movie, American Violet, was made about the incident.
Shooting of Pearlie Golden
In May 2014, protesters demonstrated against the shooting of a 93-year-old woman named Pearlie Golden by the Hearne Police Department.[10] After Officer Stephen Stem responded to a disturbance at Golden's residence, police officials said that Golden had discharged a firearm into the ground twice. Stem shot Golden three times, resulting in Golden's death.[11]
The officer had been on the police force since 2012 and it was his second fatal shooting. Stem was placed on leave and Hearne mayor Ruben Gomez recommended Stem's firing.[10] He was terminated by a unanimous city council vote. Stem's attorney said that some community members had turned a safety issue into one focused on age, race and gender.[11]
Speed trap
In June 2015, a TV station reported that the cities of Calvert, Franklin, Hearne, and Lott, in a "Texas Triangle", were using their police departments to issue numerous speeding tickets to turn their municipal court into a "cash cow".[12]
Hearne is located at 30°52′41″N 96°35′44″W / 30.87806°N 96.59556°W / 30.87806; -96.59556 (30.877989, -96.595665).[13] According to the United States Census Bureau, the city has a total area of 4.1 square miles (11 km2), all of it land. General aviation service is provided by Hearne Municipal Airport.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Hearne has a humid subtropical climate, abbreviated "Cfa" on climate maps.[14] Hearne was subject to heavy flooding on May 13, 2004 when 17 inches (430 mm) of rain fell in an hour.
Historical population
%±
1880 1,421 —
1910 2,352 10.5%
1930 2,956 7.8%
1970 4,982 −1.8%
2019 (est.) 4,354 [2] −2.4%
U.S. Decennial Census
Hearne is part of the Bryan-College Station metropolitan area.
As of the census[3] of 2000, there were 4,690 people, 1,710 households, and 1,190 families residing in the city. The population density was 1,144.2 people per square mile (441.7/km2). There were 1,944 housing units at an average density of 474.3 per square mile (183.1/km2). The racial makeup of the city was 44.41% African American, 38.12% White (including Hispanics), 0.49% Native American, 0.17% Asian, 0.04% Pacific Islander, 14.48% from other races, and 2.28% from two or more races. Hispanic or Latino of any race were 28.10% of the population.
There were 1,710 households, out of which 36.7% had children under the age of 18 living with them, 39.2% were married couples living together, 25.6% had a female householder with no husband present, and 30.4% were non-families. 27.8% of all households were made up of individuals, and 15.4% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.31.
In the city, the population was spread out, with 32.9% under the age of 18, 9.1% from 18 to 24, 24.3% from 25 to 44, 18.7% from 45 to 64, and 15.1% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 84.4 males. For every 100 females age 18 and over, there were 77.8 males.
The median income for a household in the city was $19,556, and the median income for a family was $25,538. Males had a median income of $24,013 versus $19,306 for females. The per capita income for the city was $9,716. About 29.2% of families and 31.2% of the population were below the poverty line, including 45.2% of those under age 18 and 25.8% of those age 65 or over.
Hearne High School, an entity of the Hearne Independent School District, was a Texas Education Agency-recognized campus in 2008. The Hearne Junior High School was a TEA-recognized campus in 2010 and Hearne Elementary School received the academically acceptable rating from TEA in 2013
Rosie Lee Moore Hall, was Aunt Jemima for 25 years. Quaker Oats
Lance Hoyt, professional wrestler working for All Elite Wrestling
R. Bowen Loftin, former President of Texas A&M University
Jerry D. Merryman [1], The hand-held pocket calculator was invented at Texas Instruments, Incorporated (TI) in 1966 by a development team which included Jerry D. Merryman, James H. Van Tassel and Jack St. Clair Kilby.
Rodrick Monroe, NFL tight end
Steve O'Neal, former American football punter and wide receiver who holds the record for the longest punt in professional football history
John Randle, Hall of Fame NFL defensive tackle
Jose Francisco Ruiz, the original grantee of nine-leagues of land that comprise Hearne, Texas.
Patrick Edwards, former NFL wide receiver
David Schnaufer, (1952 – 2006) dulcimer virtuoso and first professor of dulcimer; credited with restoring popularity of the instrument in contemporary music,[15]
Hearne City Hall
Downtown Hearne
First Star Bank is located in Hearne off Texas State Highway 6 south.
Hearne High School occupies the former Wal-Mart building.
^ "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved August 7, 2020.
^ a b "Population and Housing Unit Estimates". United States Census Bureau. May 24, 2020. Retrieved May 27, 2020.
^ a b "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
^ "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
^ a b "Hearne, TX". Texas State Historical Association. Retrieved November 27, 2014.
^ a b Belkin, Lisa (1990-12-14). "Wal-Mart, Once Again, Shakes Up Texas Town". The New York Times. Retrieved 2009-03-13.
^ Halkias, Maria. "Living with Wal-Mart 30 years later, Texas both cheers and fears discount behemoth Lone Star State has been changed, as has giant retailer." The Dallas Morning News. October 30, 2005. Business 1D. Retrieved on February 22, 2011.
^ a b The Rise of the Warrior Cop, the militarization of America's police, by Radley Blako, 2013, Kindle Location 4459
^ "In Wake of ACLU Civil Rights Lawsuit Settlement, African Americans Affected by Texas Drug Task Force Scandal Call for Reconciliation at Town Meeting". Retrieved 13 March 2017.
^ a b Stanglin, Doug. "Texas town shaken after cop shoots 93-year-old". USA Today. Retrieved November 27, 2014.
^ a b Boroff, David (May 12, 2014). "Texas cop who was axed after fatally shooting 93-year-old rips 'knee-jerk reaction'". New York Daily News. Retrieved November 27, 2014.
^ "EXCLUSIVE: Judge says he quit over speeding ticket quota". 6 June 2015. Archived from the original on 6 June 2015. Retrieved 13 March 2017. CS1 maint: bot: original URL status unknown (link)
^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
^ "Hearne, Texas Köppen Climate Classification (Weatherbase)". Retrieved 13 March 2017.
^ "Vanderbilt University Register: Texas-born virtuoso finds harmony, sophistication in Appalachian instrument". Archived from the original on 17 January 2016. Retrieved 13 March 2017.
City of Hearne
Hearne Chamber of Commerce
Frontline's documentary The Plea
Texas portal
Wikimedia Commons has media related to Hearne, Texas.
Municipalities and communities of Robertson County, Texas, United States
County seat: Franklin
Bald Prairie
Easterly
Tidwell Prairie
Valley Junction
United States portal
MusicBrainz area
Cities in Robertson County, Texas
Cities in Texas
Bryan–College Station

redpajama_set_name: RedPajamaCommonCrawl


text:
Q: Переход на другой экран при долгом нажатии кнопки Столкнулся с такой задачей: необходимо написать обычный калькулятор на Android, но с необычным условием:
при долгом нажатие (4 секунды) на кнопку "=" и затем (в течение 5 секунд) ввода комбинации «123» должен открыться второй экран с одной надписью "Секретное меню".
Это нужно сделать без диалогового меню.
Понимаю, как сделать обработку долгого нажатия. Но не могу придумать, как реализовать "ввод секретной комбинации".
Подскажите, пожалуйста. Заранее благодарю.

A: String inputnum = "1234"; // это переменная которая равна то что выводится на дисплее калькулятора
String PASSWORD = "1111"; // а это заранее установленный пароль
 Boolean FingerOnScreen = false;
int TIMETOUCH = 4000; // время зажатия пальца на экране задается в миллисек.

// этот метод может вызываться из метода onTouchEvent он контролит долгие нажатия
public void counter(){

    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
             if (FingerOnScreen == true) {
                listenerofNumbers();
            }

        }
    }, TIMETOUCH); // задержать вызывание нового метода на 5 сек
}

public void listenerofNumbers(){
    if (inputnum.equals(PASSWORD)){
        //Start secret activity
        Intent i=new Intent(getApplicationContext(),YOURACTIVITY.class);
        startActivity(i);
    }
}

А вот как сделать например чтобы если пользователь зажал кнопку меньше 5 сек? А это можно сделать так - ввести переменную Boolean FingerOnScreen она будет изменяться в соответствие с изменением работы MotionEvent.ACTION_DOWN(FingerOnScreen == true) и MotionEvent.ACTION_UP (FingerOnScreen == false)

redpajama_set_name: RedPajamaStackExchange


text:
Baking chips sold exclusively at Walmart are recalled
With a third of all Duke Energy customers in the dark, Moore County hit hardest in central NC
Black Lives Matter, pro-voting banners burned at Chapel Hill church
Orange County News
by: Crystal Price
Posted: Nov 2, 2020 / 04:45 PM EST / Updated: Nov 2, 2020 / 04:45 PM EST
CHAPEL HILL, N.C. (WNCN) — Police are searching for who is responsible for vandalizing banners at a church on Fordham Boulevard in Chapel Hill.
Police say a Black Lives Matter banner and a banner urging people to vote were burned on Friday night at Binkley Baptist Church.
Reverend Marcus McFaul says he had pulled up the church after 8 p.m. Friday and found the banners on fire.
He called 911 and firefighters responded and put out the fires.
A third banner was also slashed the next day.
McFaul says they have since put up another banner to let everyone know that they will not let the vandalism stop them from getting out their voice about certain issues.
by Ethan Illers, Nexstar Media Wire / Jan 16, 2022
NASHVILLE, Tenn. (WKRN) - Former University of Alabama and NFL quarterback Jay Barker was arrested Saturday in Nashville and is now facing a felony domestic violence charge.
Barker is married to country music singer Sara Evans.
According to the United States Food and Drug Administration, the company's 7-ounce Peppermint Flavor Baking Chips are being recalled.


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Gritters are being deployed to spread rock dust into melting roads and a hosepipe ban in Northern Ireland has been introduced.
Roads have started to melt and train track temperatures have soared to 49C (120.2F).
A hosepipe ban has been put in place in some areas as the UK continues to bask in the heatwave with no sign of rain in the coming days.
Northern Ireland has introduced the ban, as more warm dry weather is forecast over the weekend and next week.
Demand is outstripping supply and Northern Ireland Water said it had no option but to bring in the ban in order to conserve it.
In other areas of the country consumers are being urged to take steps to reduce the amount of water they use such as taking a shorter shower, not leaving the taps running and re-using paddling pool water for plants in the garden.
The country basked in the hottest temperature of the year for the fourth day in a row on Thursday as the mercury soared to 33C (91.4F) in Porthmadog in Wales.
Although temperatures may have peaked for now, they will remain high into the weekend and early next week.
Temperatures could get as high as 29C (84.2F) on Saturday in England and Scotland, 27C (80.6F) in Northern Ireland and Wales, and there are predicted highs of around 31C (87.8F) in some parts of the UK by Monday.
Sky's weather producer Joanna Robinson said there will be almost unbroken sunshine on Saturday.
She said: "The South and West will see the highest temperatures, climbing to 29C (84F) in a few spots.
"The afternoon will be largely fine, but Ireland will see cloud building, perhaps bringing showers to the West.
"The odd shower can't be ruled out over Northwest Scotland too."
She added: "On Sunday, increasing humidity and cloud over Southwest Britain and Ireland will bring the risk of thunderstorms. Most other places will stay dry, sunny and very warm or hot."
Gritters have been spreading crushed rock dust onto melting roads in some areas to create a non-stick layer between the surface and vehicles.
Some railway tracks have got as hot as almost 50C (122F), causing them to expand and bend.
Trains had to be stopped from running over a section of track near Carlisle station on Thursday.
On the route from London Waterloo to New Malden, speed restrictions have been in place all week due to the scorching temperatures, causing delays to services.
Translink Rail services were forced to delay and cancel services across Northern Ireland on Thursday as rail lines reached over 50C and began to buckle.
The Met Office's heat-health watch alert has remained at level two all week.
It means social and healthcare services are on standby to reduce harm from a potential heatwave.
It is the first time since 2013 all four nations in the UK have seen temperatures of 30C or above, the Met Office said.
Public Health England warned the extreme heat may pose a risk to the most vulnerable.
There are also warnings about taking care near water and in the countryside, where fire crews have been tackling wildfires.
The heat has already claimed casualties.
The family of 13-year-old Ryan Evans, whose body was recovered on Wednesday, two days after he got into difficulty at Westport Lake in Stoke-on-Trent, warned of the dangers of playing and swimming in open water.
They said: "We just cannot emphasis enough the dangers of swimming in open water, especially where young children are concerned.
A 17-year-old boy was found dead in the River Aire in Leeds in the early hours of Wednesday morning.
It is believed he got into difficulties while swimming on Tuesday evening.
No significant rainfall is forecast in the coming days which is bad news for farmers growing crops and the firefighters and soldiers battling the ongoing incident on Saddleworth Moor, near Manchester.
Parts of Saddleworth Moor have been alight for six days, with firefighters saying it could be weeks before the fire is out.
Another moorland blaze - on Winter Hill, near Rivington, Lancashire - broke out on Thursday.
Pet owners are being advised by the RSPCA to keep a close eye on their animals in the heat after receiving 625 calls about animals in hot environments over the last two weeks - the majority about dogs in hot cars.


text:
BSSPD Confirms Annual 2022 Conference at P&J Live
November 22nd 2021
The British Society of Prosthodontics (BSSPD), the UK's foremost dental organisation in the field of prosthodontics, has confirmed its annual conference at P&J Live over two days from Thursday 10th March to Friday 11th March 2022.
The annual conference attracts dentists from all over the UK to debate topical matters and recent advances in the fields of fixed, removable, implant and maxillofacial prosthodontics. The BSSPD has a membership of around 500, and is open to dentists, doctors and scientists with an interest in prosthodontics.
The theme of the 2022 conference is, 'Challenging the Dogma in Prosthodontics', with a line-up of acclaimed speakers due to scrutinise and debate some of the beliefs prosthodontists have had for many years. The well-known speakers will be given free rein to explore their topics at the conference and it promises to be engaging for specialists and general dentists alike.
The current BSSPD President is Dean Barker of Aberdeen Dental Hospital & Institute of Dentistry. Dr Barker says: "I am delighted to be hosting this meeting in Aberdeen in 2022. P&J Live is one of the UK's newest conference and exhibition centres, with wonderful facilities. After the last 18 months, delegates will be assured of a warm welcome and the venue's COVID compliant status and recognition will help to ensure a safe return to more normal times.
"Although the Granite City is towards the top of the map, Aberdeen's role as the Oil & Gas Capital of Europe means that it is extremely well connected with frequent flights and direct rail links connecting all parts of the UK. We are lucky to have secured travel discounts with various air and rail companies to help attract delegates to the north-east of Scotland."
Kim Stephen, Head of Sales - Conferences, Meetings & Banqueting at P&J Live, says: "We are delighted to welcome The British Society of Prosthodontics annual conference to our venue in Aberdeen next year. This is the first time the Society has hosted their conference at P&J Live and look forward to showcasing our venue and the wider region to visitors from all over the UK."
Further details of the conference are available on the BSSPD's website www.bsspd.org


As someone who was born and raised at the top of Cornelius Pass Road, I have to question Multnomah County's claims that closing it for four months for safety improvements will not cause serious traffic problems ("Cornelius Pass roadwork will divert traffic for 4 months").
There are no reasonable routes to switch 10,000 to 14,000 commuters onto. Personally, I don't think the county has managed this part well at all. Their plan to hopefully be done with Newberry Road, which is currently closed by a landslide, and divert traffic there is unrealistic. Especially when the majority of traffic is headed west on Highway 30 and not back into Portland. That means most will try to go to roads like Logie Trail or Rocky Point. Have you driven them?
Read the Portland Tribune's story on the closure plans for Cornelius Pass Road from Dec. 31, 2018.
For starters, even if the county can reopen Newberry, you have to realize that it has a ton of curves and a switch back that is very tight and steep, even for a less-than-40-foot truck. Also, I remember running up to accidents on Newberry, but honestly, most were bicycles on blind curves. I wonder if the county is considering that there will probably be bike traffic in the summer on this narrow road, during the planned closure.The benefit of Newberry as an alternate route will have a limited effect.
Next is McNamee. Well, what can I say, except "don't." Lots of curves that tighten up as you go into them that can be challenging for inexperienced or timid drivers. Then there is the trestle, where it reduces to essentially one lane. Then it dumps onto Highway 30, where there really aren't the best sightlines for a left turn.
After McNamee is Logie Trail. Talk about a goat trail. There are places where two cars have trouble fitting, let alone putting a truck on that road. All the curves and switchbacks, and talk about drop-offs. I won't be on this one.
Next is Rocky Point. Now, this is where a lot of locals usually go, but it's a long travel up Skyline Road to the north to get there, and it is a windy road with many tight switchbacks. I have followed some horse trailers down this road, and it is scary to even watch. This road is better than Logie Trail as far as condition, but not by far.
Not any good choices for commuting over the mountain, and as most people I talk to believe, the work they are doing is just a Band-Aid. So why isn't Multnomah County finding a better way to do this? Well, it's money. Multnomah County got money from the Oregon Department of Transportation to do the road improvements, and the county wants ODOT to take over responsibility for Cornelius Pass, as approved by the 2017 Oregon Legislature. ODOT has said they won't take over the road until the county spends the money they got on the road. So the county says they will shut down the road to get the work done as fast and efficient as possible, regardless of the impact on the public, so they can turn over the road to the state sooner rather than later.
Here's to hoping they both understand the problems that are coming.
Erik Linden is a St. Helens resident.


text:
Zwanenburg Kies andere plaats
Closed at the moment
Tu09:00 - 17:00
Batsford Garden Centre
GL56 9QB Moreton in Marsh
Reviews Batsford Garden Centre
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Margaret Willemsen 27-11-2012
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Wonderful Garden Centre - a full range of plants and flowers, indoor and outdoor, bulbs, tools, gifts, everything for the birds - and more!! Added to that there is a spacious restaurant with indoor and outdoor seating, friendly staff - and the food is fabulous. Try it and see.....
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Batsford Garden Centre is a garden centre you'll find at Moreton in Marsh, Gloucestershire . You'll find an excellent range of plants within the garden centre, as well as many other gardening products. For more information on the range please refer to the website. Batsford Garden Centre is one of the many garden centres in Gloucestershire .
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The National Christian College Athletic Association Division One National Volleyball Championships gets underway today at the College of the Ozarks Keeter Athletic Complex.
Eight teams from around the country including the host Lady Bobcats are taking part in the three day event.
Pool Play takes place today and Friday with the top two teams in each pool moving to the semi-finals late Friday afternoon and evening before those winners meet for the National Championship Saturday afternoon at 1:00.


Cars exit Cascades, Oulton Park, BRSCC £1000 1967. ..
Cars leave the grid, Oulton Park, BRSCC £1000 1967. ..
Cars on the grid, Oulton Park, BRSCC £1000 1967. ..
Derek Bell, Felday Engineering Brabham BT21, leads at Cascades, Oulton Park, BRSCC £1000 1967. ..
Harry Stiller, Charles Lucas Brabham BT21, and Roy Pike, Charles Lucas Titan MK 1, Oulton Park, BRSC..
Harry Stiller, Charles Lucas Brabham BT21, Oulton Park, BRSCC £1000 1967. ..
Harry Stiller, Charles Lucas Brabham BT21, Chris Williams, Brabham BT21, Oulton Park, BRSCC £1000 1..
John Miles, Lotus Components Lotus 41C; Derek Bell, Brabham BT21; and Dave Berry, Frank Lythgoe Raci..
John Miles, Lotus Components Lotus 41C; Derek Bell, Brabham BT21; Dave Berry, Frank Lythgoe Racing B..
Morris Nunn, Lotus 41, and Peter Gaydon, Special Motor Racing Team Brabham BT18, Oulton Park, BRSCC ..
Roy Pike, Charles Lucas Brabham BT21, and Harry Stiller, Charles Lucas Brabham BT21, Oulton Park, BR..
Roy Pike, Charles Lucas Titan, leads at Cascades Bend, Oulton Park, BRSCC £1000 1967. ..
Roy Pike, Charles Lucas Titan MK 1, Oulton Park, BRSCC £1000 1967. ..
Tony Lanfranchi, Ken Bass Team MRS Merlyn MK 10, Oulton Park, BRSCC £1000 1967. ..


text:
Long-Legged Myotis: Myotis Volans
Description Of The Long-Legged Myotis
Long-Legged Myotis Bat Average Size
Ecology Of The Long-Legged Myotis Species
Long-Legged Myotis Typical Habitats
Range Of Long-Legged Myotis In North America
Long-Legged Bat Diet
Behavior Of The Long-Legged Bat
Long-Legged Myotis Reproduction & Lifecycle
Threats To The Long-Legged Myotis Species
The long-legged myotis is a relatively large bat with a long tail and big feet. The fur color of this bat ranges from reddish-brown to entirely black. The underside fur extends from the wing membrane to the elbow/knee.
Tail-to-head and body ratio averaging 0.90-0.94; relatively long tibia; foot-to-tibia ratio near 0.40; full pelage and about 7 mm long at the back; braincase profile rising abruptly from the rostrum, giving a pug-nosed effect; ears short and rounded at the tip. 1Go To Source depts.ttu.edu -"LONG-LEGGED MYOTIS Myotis volans (H. Allen 1866)"
Learn More: United States Big Bats
Weight: 5-9 g
Forearm Length: 39mm
Tail Length: 45 mm
Ear Length: 13mm
Foot Length: 7mm
The long-legged myotis emerge from the roost twice a day, once early and then during dusk. During this time the bats will forage around the tree canopies and over bodies of water.
While hunting, flight paths are direct and this bat will pursue prey over long distances. 2Go To Source fieldguide.mt.gov -"Long-legged Myotis – Myotis volans"
In forested areas, long-legged myotis bats can be found. Late-successional coniferous forests or other forested habitats with late-successional components are often associated with them.
This species requires large snags and hollow trees for day, night, and maternity roosts. They may also use bridges for night-roosting in forested habitats, caves, and mines for roosting and hibernating.
Typically, along riparian corridors and forest edges si where this bat will forage for food. Long-legged myotis are often observed near ponderosa pine, grand fir, and white fir in the East Cascades eco-region. 3Go To Source oregonconservationstrategy.org -"Long-legged Myotis"
The long-legged myotis occurs in coastal ranges from Mexico to Oregon, the Great Basin, Mojave desert, and southern California.
The species is absent in desert habitats (except for the Mojave Desert mountains). In woodland and forest habitats above 1200 m, this species is most prevalent. Forages are also used in chaparral, coastal scrub, shrub habitats of the Great Basin, and woodlands and forests in early successional stages. Research has shown that this species occurs in elevations from sea level to 3600 m.
Along with termites, flies, beetles, lacewings, wasps, leafhoppers, true bugs, spiders, and other invertebrates, moths are the dominant prey of the long-legged myotis. Moths comprise 42-78% of the bat's diet.
The long-legged myotis emerge early in the evening from their daily roosts. The activity of foraging occurs throughout the night, but it is greatest during the first 3-4 hours. Along forest edges and cliff faces, inside forests, over the forest canopy, and near water, the prey is caught aerially.
Rapid direct flight characterizes this species. A study in Idaho showed the home ranges of males averaged 647 hectares, and reproductive females averaged 376 hectares. 4Go To Source eopugetsound.org -"Long-legged Myotis (Myotis volans)"
There is little known about the habits of M. volans. These bats fly less erratically and more slowly than M. lucifugus and M. yumanensis. Both young and fully grown long-legged myotis leave the maternity roost in the fall, but the ensuing behavior is unknown.
While long-legged myotis are relatively tolerant of cold temperatures, the species does not have winter records. Hibernation occurs in caves during the winter, with males at hibernation sites outnumbering females. The population structure and dynamics of these bats are little known. 5Go To Source animaldiversity.org -"Myotis volans long-legged myotis"
Mating happens in the fall, and fertile mothers give birth in June or July.
Females have been recorded lactating in July and August. The young long-legged myotis begin to fly in mid-July.
After a bat is a year old, it has the capacity to reproduce. The maximum recorded life expectancy is 21 years. 6Go To Source nrm.dfg.ca.gov -"California Wildlife Habitat Relationships System"
The largest threat known to long-legged myotis is the invasive fungal disease white-nosed syndrome (WNS). During hibernation, the disease affects bats, resulting in dehydration, emaciation, and eventual death.
South Dakota wildlife managers confirmed WNS there in 2018 in a long-legged myotis. Currently, however, there are no population impact estimates. 7Go To Source wildlife.utah.gov -"Long-legged Myotis (Myotis volans)"
"A Species Account of the Long-Legged Myotis (Myotis Volans) | Mammals of Texas | Natural Science Research Laboratory | TTU." Texas Tech University Natural Science Laboratory, Texas Tech University, www.depts.ttu.edu/nsrl/mammals-of-texas-online-edition/Accounts_Chiroptera/Myotis_volans.php. Accessed 8 Jan. 2021.
Hutchinson, M. 2002. "Myotis volans" (On-line), Animal Diversity Web. Accessed January 08, 2021 at https://animaldiversity.org/accounts/Myotis_volans/
"Long-Legged Myotis – Oregon Conservation Strategy." The Oregon Conservation Strategy, oregonconservationstrategy.org/strategy-species/long-legged-myotis. Accessed 8 Jan. 2021.
Long-legged Myotis — Myotis volans. Montana Field Guide. Montana Natural Heritage Program and Montana Fish, Wildlife and Parks. Retrieved on January 8, 2021, from http://FieldGuide.mt.gov/speciesDetail.aspx?elcode=AMACC01110
Long-legged Lyotis. "Long-Legged Myotis (Myotis Volans)." Encyclopedia of Puget Sound, Puget Sound Institute, 7 May 2013, www.eopugetsound.org/articles/long-legged-myotis-myotis-volans.
"LONG-LEGGED MYOTIS Myotis Volans." California Department Of Fish And Wildlife, nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=2327. Accessed 8 Jan. 2021.
"Long-Legged Myotis (Myotis Volans)." Utah Division Of Wildlife Resources, Utah Division of Wildlife Resources, wildlife.utah.gov/pdf/sensitive_species/mammals_longlegged_myotis_2020.pdf. Accessed 8 Jan. 2021.


text:
Q: Bash script to return domains instead of URL's I have this bash script that i wrote to analyse the html of any given web page. What its actually supposed to do is to return the domains on that page. Currently its returning the number of URL's on that web page.
#!/bin/sh

echo "Enter a url eg www.bbc.com:"
read url
content=$(wget "$url" -q -O -)
echo "Enter file name to store URL output"
read file
echo $content > $file
echo "Enter file name to store filtered links:"
read links
found=$(cat $file | grep -o -E 'href="([^"#]+)"' | cut -d '"' -f2 | sort | uniq | awk   '/http/' > $links)
output=$(egrep -o '^http://[^/]+/' $links | sort | uniq -c > out)
cat out

How can i get it to return the domains instead of the URL's. From my programming knowledge I know its supposed to do parsing from the right but i am a newbie at bash scripting. Can someone please help me. This is as far as I have gone.

A: I know there's a better way to do this in awk but you can do this with sed, by appending this after your awk '/http/':
| sed -e 's;https\?://;;' | sed -e 's;/.*$;;'

Then you want to move your sort and uniq to the end of that.
So that the whole line will look like:
found=$(cat $file | grep -o -E 'href="([^"#]+)"' | cut -d '"' -f2 | awk   '/http/' | sed -e 's;https\?://;;' | sed -e 's;/.*$;;' | sort | uniq -c > out)

You can get rid of this line:
output=$(egrep -o '^http://[^/]+/' $links | sort | uniq -c > out)

A: EDIT 2:
Please note, that you might want to adapt the search patterns in the sed expressions to your needs. This solution considers only http[s]?://-protocol and www.-servers...
EDIT:
If you want count and domains:
lynx -dump -listonly http://zelleke.com | \
  sed -n '4,$ s@^.*http[s]?://\([^/]*\).*$@\1@p' | \
   sort | \
     uniq -c | \
       sed 's/www.//'

gives
2 wordpress.org
10 zelleke.com

Original Answer:
You might want to use lynx for extracting links from URL
lynx -dump -listonly http://zelleke.com

gives
# blank line at the top of the output
References

   1. http://www.zelleke.com/feed/
   2. http://www.zelleke.com/comments/feed/
   3. http://www.zelleke.com/
   4. http://www.zelleke.com/#content
   5. http://www.zelleke.com/#secondary
   6. http://www.zelleke.com/
   7. http://www.zelleke.com/wp-login.php
   8. http://www.zelleke.com/feed/
   9. http://www.zelleke.com/comments/feed/
  10. http://wordpress.org/
  11. http://www.zelleke.com/
  12. http://wordpress.org/

Based on this output you achieve desired result with:
lynx -dump -listonly http://zelleke.com | \
  sed -n '4,$ s@^.*http://\([^/]*\).*$@\1@p' | \
   sort -u | \
     sed 's/www.//'

gives
wordpress.org
zelleke.com

A: You can remove path from url with sed:
sed s@http://@@; s@/.*@@

I want to say you also, that these two lines are wrong:
found=$(cat $file | grep -o -E 'href="([^"#]+)"' | cut -d '"' -f2 | sort | uniq | awk   '/http/' > $links)
output=$(egrep -o '^http://[^/]+/' $links | sort | uniq -c > out)

You must make either redirection ( > out ), or command substitution $(), but not two thing at the same time. Because the variables will be empty in this case.
This part
content=$(wget "$url" -q -O -)
echo $content > $file

would be also better to write this way:
wget "$url" -q -O - > $file

A: you may be interested by it:
https://www.rfc-editor.org/rfc/rfc3986#appendix-B
explain the way to parse uri using regex.
so you can parse an uri from the left this way, and extract the "authority" that contains domain and subdomain names.
sed -r 's_^([^:/?#]+:)?(//([^/?#]*))?.*_\3_g';
grep -Eo '[^\.]+\.[^\.]+$' # pipe with first line, give what you need

this is interesting to:
http://www.scribd.com/doc/78502575/124/Extracting-the-Host-from-a-URL
assuming that url always begin this way
https?://(www\.)?

is really hazardous.


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text:
Rachmaninoff – Concerto No. 2 in C minor for Piano and Orchestra, Op. 18
by Michael Clive
PERFORMANCE TIME: 32 MINUTES
Adagio sostenuto
Allegro scherzando
One can hear the brooding depressive as well as the ardent romantic throughout the concerto. In the first movement, marked moderato and written in C minor, an opening of intense foreboding builds through a series of powerful chiming chords in the piano. As the tension builds to a breaking point, the piano's simulated chiming rolls into a sweeping main theme that is taken up in the violins but quickly engulfs the entire orchestra. From this moment on—indeed, from the very opening bars, with the piano's lone voice—the concerto announces itself as a hugely scaled musical statement that balances sweeping, melancholy "outdoor" phrases with romantic "interior" melodies.
When a rolling theme emerges, its march tempo gives it the quality of an inexorable machine, with only the solo piano to challenge it. Slow chords in the strings open the second movement, an adagio that moves from C minor into E major. While the piano delineates a theme through fleet, poetic arpeggios, the overall mood remains melancholy, with a short exchange between orchestra and piano developing the movement's motifs. Yet this tinge of sadness does not overwhelm—perhaps because of the sense of romance and melodic richness that pervades the whole concerto. Its songful quality, which gave rise to two Frank Sinatra tunes based on just the first movement ("I Think of You" and "Ever and Forever"), takes full flight in the lush, gorgeous third movement, marked allegro scherzando. This movement is built around a melody that is like the distilled essence of romance, and that forms the basis of the song "Full Moon and Empty Arms." It has been quoted in dozens of movies to convey the exquisite pleasure of love anticipated… and the exquisite pain of love unfulfilled. It can also be said to have saved Rachmaninoff 's life: when he composed this melody and discussed it with colleagues, it secured his more optimistic outlook on his composing prospects. This is the theme that turned Brief Encounter into a three-handkerchief weepy, and that prompted Marilyn Monroe to tell Tom Ewell, "Every time I hear it I go to pieces!" in The Seven Year Itch.
The concerto ends in a flourish of virtuosity and optimism. The last movement, an allegro, opens with an introduction that moves away from the previous movement's E major, where the music was lush but the emotions lingered in an atmosphere of twilit moodiness. To close, it moves from C minor to C major with ever-increasing tension and energy. The final thematic statements and coda are resolved in C major, in a loud and ecstatic finale.
rachmaninoff|
Jan 28 - 29 | Abravanel Hall
Learn More VIEW TICKETS
Feb 04 - 05 | Abravanel Hall
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Daniel Lozakovich plays Tchaikovsky's Violin Concerto
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Louis Schwizgebel plays Mozart's Piano Concerto No. 12 Finishing Touches Rehearsal
Mar 03 | Abravanel Hall
Louis Schwizgebel plays Mozart's Piano Concerto No. 12 at the Noorda
Mar 03 | The Noorda at UVU
Louis Schwizgebel plays Mozart's Piano Concerto No. 12
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Carnival of the Animals with Children's Dance Theatre


"I adore this place," says a reader. "It's like stepping in a cozy Hobbit hole. I could hang out there for hours and spend $100 every time." And so it goes for JWD, which continues to be loved by those bookworms for whom towers of books are a place to feel safe in, to hide away from the world and read---and eventually purchase---much-browsed tomes containing the secrets of every subject under the sun, and then some.


Home > Windows Server > Windows Server Fundamentals > What is a Domain?
A domain is a logical group of computers characterized by centralized authentication and administration while authentication provided through centralized Active Directory.
Active Directory database can be physically distributed across domain controllers, it requires at least one system configured as a domain controller.
A domain object is represented by a large triangle and the objects it contains are as shown. The Domain objects can be a user, a group or a device such as computer, printer or even other servers.


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Bucky Halker was a performer at the 2018 Rudolstadt Musical Festival in Germany, a legendary and long-running world music festival in Germany.
The regional TV station in Mainz did a segment on the festival, which includes Bucky and other performers. Bucky's pal Michael Kleff, a festival founder, is featured and offers some commentary on the festival and its history.
This entry was posted in Bucky News, Events, Music, Politics, Travel. Bookmark the permalink.


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Nine-year-old boy who miraculously survived plane crash arrives in the Netherlands.
Van Assouw survived miraculously but all others on board the Airbus A330-200 died when the plane flying from Johannesburg to the Libyan capital crashed just short of the runway early on Wednesday.
Van Assouw's family misfortune has attracted an outpouring of condolences in the Netherlands, which lost 70 nationals in the crash, including the boy's parents and 11-year old brother.
His family thanked officials and doctors but also asked for the media to respect their privacy.
"We have two kinds of sorrow to deal with, because Ruben is in a terrible situation, but we have also lost family members, our brother and sister and our nephew Enzo. The future will be difficult for us," the family said in the statement.
None of the bodies have been repatriated so far outside Libya as authorities said they were waiting for the relatives of the dead to provide details of distinguishing marks such as tattoos and scars, or DNA and medical records to help identify them.