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by skipc | Jan 24, 2023 | Blog, Business Tips, Marketing Articles
2023 Web Design Trends: A Comprehensive Guide As technology advances, web design trends change rapidly. Designers and developers who want to stay ahead of the curve need to stay informed of the current trends and best practices. This comprehensive guide will...
Blogging is an essential tool for improving your website's content and search engine optimization (SEO). Publishing new and updated content regularly helps to keep your website relevant and improve its visibility and ranking in search engine results. Blogging also...

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            Tuesday
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Build a Django App from Public Data, the next step in your Django journey

Joe Kokenge

Audience level:

Novice

Description

In the vein of chicagocrime.org, you too can spin public data into a Django Application.  We'll browse some examples of Django applications powered by public data, look at some places to get public data and how to ask for it.  Finally, we'll walk through an example of a live application based on San Antonio's restaurant inspections.

Abstract

The Django documentation and tutorials are excellent.  But, what happens after you've built your "Polls" application?  Finding the next step can be difficult.  It's hard to go from "Polls" to "Instagram" and still stay motivated and excited about your Django journey.

This talk discusses public data as a good next step.  Public data covers every topic imaginable, is readily available (you can even make the government send it to you), and having a ready made dataset lets you focus on exploring certain parts of Django (templates, views, url routing, models and the ORM API) while leaving other parts for later.

In the tradition of the Lawrence Journal-World, many journalist/developers have built Django applications driven by public data.  We'll take a look at some of these for inspiration and look at places to get public data.  We'll see that one of the neatest things about using public data is that you can build some really cool and useful applications which will help you stay motivated when the Djangoing gets tough.

We'll also walk through a live example of an application built for the San Antonio Express-News that uses the city of San Antonio's restaurant inspections.  We'll see that the models and views for this application are a good next step--not too hard, but still challenging--as you continue learning the Django data management pipeline.

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Michelle Ganley, Digital Content Team Managing Editor, Graham Media Group
Published: January 16, 2018, 7:51 am
Tags: News, Station
At News4Jax, we want to help you avoid fake news
Take action in your personal social media; mark us for preferential treatment
(GMG) – We're now living in an age in which, every time you open your laptop, sign into Facebook or load your email, you could be exposed to fake news.
But how do you know what's considered fake? Is the article you're reading just heavily biased -- as in, perhaps from a personal blog or an organization with an agenda? Or is it FAKE fake, meaning, it's satire or from a completely bogus website?
There's a lot to consider.
Ultimately, it's your responsibility to protect yourself from fake news and to remain skeptical of the things you're reading online. You don't want to become part of the problem and start "sharing" news that, well, isn't. Because then it's not just those particular websites that are dishonest and untrustworthy. You become untrustworthy, too.
Let's start here: By taking action in your personal social media. Do you Like or Follow us on Facebook?
Look for our name, "WJXT4 The Local Station / News4JAX" in the search bar, and then add us. You'll want your trusted local news source at the top of your News Feed.
And then mark us for priority treatment, so that you don't miss a thing. Here's how to do that:
Go to our page.
Tap or click on the "Following" tab, in the upper left area of your screen.
Make sure your preferences say "See first" under the section called "In your News Feed."
Make sure your preferences are switched to "On" for Notifications. This will allow you to be alerted if we post an event or hop online for a Facebook Live session.
Here's what it should look like:
When it comes to reading news online, we want you to hear it, or take it, from us.
"As Northeast Florida's most visited online news site, News4Jax is committed to accurately and fairly covering all aspects of our community," digital managing editor Steve Patrick said. "Without the time constrains of our television co-workers, we try to include more detail and context to help our readers understand complex or controversial stories. Add in the ability to interact with and share our content, we hope to be a catalyst to elevate the conversation about issues important to our residents, our city and our nation."
We don't have an agenda. We just want to share the facts and help keep you and your family safe and informed. And we're owned by Graham Media Group, not one of the major networks.
The people inside our newsroom share your community. We could be your neighbors. We don't have secret meetings over what to cover up and what to reveal, or how to write our news in a way that influences your beliefs. But we do hit the streets, talking to people like you, as well as to community leaders, police and spokespeople. Plus we have the I-TEAM doing our own digging deeper into the bigger stories. We share what we learn every day, in the hope of making your lives easier.
And although initial reports can shift -- often because information from the scene can change, such as when a fire that was originally reported to be covering 15 acres might have grown to cover 50 acres by the time our crew arrives -- that's just the nature of the business. We stand by our work.
There's a big difference between early information or tentative reports and "fake news."
You have to ask yourself the following questions in determining what's real versus what's not: What's the source of the publication? Where is the information coming from? Do you know other information from this source, and is it reliable? Who is behind the site? Is it sponsored by some sort of a political organization or a group that you've never heard of? What does the URL say?
Or, if you're perusing your Facebook news feed, consider the source before hitting that "share" button. Which of your friends put this out there? Why?
The moral of the story is: It's important to be skeptical online. Pictures can be doctored. A personal blog can look like the website for a major news organization. Information can spread quickly in cases such as a major weather event.
But when you start by using News4Jax as your go-to source, you don't have to worry about us. We're here to make your lives easier -- one story at a time.
Michelle Ganley
Michelle is the Managing Editor of Graham Media Group's Digital Content Team, which writes for all of the company's news websites.


LR44 Batteries are a compact, button-style battery that provides a lot of power. These are commonly used in many adult toys of various designs. They're particularly popular for powering devices that are intended to be carried in the pocket or purse and that are necessarily compact. These batteries are a must-have if you own such a device. Purchasing a pack of LR44 Batteries to go along with your toy is the best way to make sure that you have all the power you need when you want it.
LR44 Batteries are .1 x .1 x .1 in size. They have a 1.5 volt charge and provide a good amount of power over the long haul. That being said, these are smaller batteries and you'll want to have backups available for when you're playing, so purchasing some extra LR44 Batteries is a great idea if you've just gotten yourself a new toy that uses them.
Remember to read the instructions that came with your toy. If it's waterproof, you generally don't have to remove the batteries when you clean the toy. If it's not waterproof, however, you'll want to make sure that you do so that you don't damage the batteries or other components.


text:
\section{INTRODUCTION}
Ferroelectric
perovskite oxides have attracted attention for many years because of their
many applications in technology, including
memory devices, electronic components, piezoelectric sensors and actuators,
and pyroelectric devices. \cite{scott}
Besides the technological importance,
there is also a great scientific interest
in understanding the underlying physics.
This is stimulated by recent discoveries of entirely new
ferroelectrics particularly in thin film form. \cite{ahn,lee,dawber}
The key to these materials is competition between different
interactions, leading to structural instability.
Ferroelectricity in perovskite $AB\text{O}_3$ oxides depends on the
delicate balance of the long-range Coulomb energy, which favors a ferroelectric
distortion, and the short-range ionic repulsion, which stabilizes the cubic
phase.\cite{cohen1990prb,cohen1992nature}
More generally, instabilities in perovskites are often discussed in terms
of competition between preferred $A$-O and $B$-O bond lengths, which
cannot both be accommodated in the ideal cubic structure
for arbitrary $A$ and $B$ ions.
This is characterized by a so-called tolerance factor, $t$, that describes
the degree of non-satisfaction of ideal bond lengths in the cubic
perovskite structure.
The balance between the long-range Coulomb energy and short-range
ionic repulsion can be modified by smaller effects related to the
$A$-O hybridization, in particular the so-called lone pair
physics associated with stereochemically active ions, particularly
Pb$^{2+}$ and Bi$^{3+}$, as in the technologically important
Pb(Zr,Ti)O$_3$ system and BiFeO$_3$.
In thin films and superlattices
the constraint imposed by lattice matching imposes strains that
push bond lengths away from their ideal values, leading to highly enhanced
ferroelectric instabilities in many cases. \cite{lee,dawber,cooper}

The piezoelectric performance in perovskite ferroelectrics
is associated with polarization rotation
near morphotropic phase boundaries (MPB).
\cite{park1997jap,noheda1999apl,bellaiche2000prl,fu2000nature,guo2000prl,noheda2001prl}
That is, in materials where two different ferroelectric states with different
lattice strains are close in energy,
an electric field may rotate the polarization
and therefore the ferroelectric state from the
zero field equilibrium configuration towards the other nearby
configuration, with resulting coupling to the lattice strain.
Strong ferroelectricity is highly desirable for piezoelectricity,
but epitaxial constraints on the lattice
strain as in most thin films are not.
It is of interest to examine strategies for producing
structural frustration and perhaps enhance
ferroelectricity in bulk materials.

In this regard, recent first principles calculations
suggest that $A$-site off-centering can be enhanced by the use
of ions with different ionic radii at the
$A$-site.\cite{singh2008prl} There is experimental support for this
in the (Ba,Ca)TiO$_3$ solid solution, which shows a strongly
stabilized ferroelectric tetragonal phase over a wide composition range
as compared to what would be expected from a classical
averaging of the end-point properties.\cite{desheng2008prl}
However, while this is shown experimentally to be effective
in enhancing ferroelectricity in (Ba,Ca)TiO$_3$ it is not
effective in the closely related (Ba,Ca)ZrO$_3$ system.
\cite{bcz}
We recently
reported results of a first principles study of the
double perovskites, BiPbZnNbO$_6$ and BiSrZnNbO$_6$, which have
a large size difference on the $A$-site.
\cite{takagi2010prb} We found high
polarization values of $\sim$80 $\mu$C/cm$^2$ in these compounds,
which is comparable to BiFeO$_3$ (90-100 $\mu$C/cm$^2$)
\cite{neaton2005prb} even though these double
perovskites have only half the $A$-sites
occupied by the stereochemically active Bi$^{3+}$
ion. The high polarization in
these materials results comes from large off-centerings of Bi ions,
associated in part with the $A$-site size mismatch,
cooperating with
moderate off-centerings of Nb ions that have Born effective
charges highly enhanced by covalency.

Here we use density functional calculations to
study the double perovskites $M$BiScNbO$_6$
  ($M$ $=$ Na, K and Rb) in order to
  further investigate the effect of $A$-site size differences on the
  polar behavior of perovskites.
In relation to BiSrZnNbO$_6$,
  the compounds that we study here have lower ionic charges at the
  $A$-site and higher ionic charges at the $B$-site. The $M$ ions have
  increasing ionic radii ($r_{\textrm{Na}^+} < r_{\textrm{K}+} <
  r_{\textrm{Rb}^+}$),
but are otherwise chemically similar, which is helpful in understanding how
  increasing $A$-site size difference affects the
  ferroelectricity.
Finally, we note that these materials could potentially be
of practical use.
It is known that
the end-point compound BiScO$_3$
  (BS) strongly favors a rhombohedral state over a tetragonal
  state, \cite{eitel,iniguez,halilov2004prb}
as does BiSrZnNbO$_6$.
As such these systems, when alloyed with a tetragonal
ferroelectric can show MPBs and possibly form useful piezoelectrics.
\cite{eitel}

\section{APPROACH}

  We investigated the lattice instabilities of three perovskite oxides
  (Na,Bi)(Sc,Nb)O$_6$, (K,Bi)(Sc,Nb)O$_6$ and (Rb,Bi)(Sc,Nb)O$_6$
  using density functional theory (DFT) within the local-density
  approximation (LDA). All calculations, including the structure
  relaxations, polarizations and Born effective charges, were done
  using a plane wave basis as implemented in Quantum Espresso
  package.\cite{espresso} We used ultrasoft
  pseudopotentials\cite{uspp} and converged our results with respect
  to the cut-off energy and Brillouin zone sampling, similar to our
  previous study for BiPbZnNbO$_6$ and
  BiSrZnNbO$_6$.\cite{takagi2010prb} The polarization was calculated
  using the Berry's phase method.

  There is a large charge difference between Sc$^{3+}$ and Nb$^{5+}$,
  and this is expected
lead to a strong ordering tendency on the $B$-site.
This is actually the case in the relaxor compound
  PbSc$_{1/2}$Nb$_{1/2}$O$_3$ (PSN), where Sc and Nb have rock-salt
  ordering.\cite{chu1995jap,malibert1997jpcond}
Here we consider material with this double perovskite type $B$-site ordering.
In addition, while ordering at the $A$-site is less clear,
there is a large charge difference at the $A$-site, which
may lead to an ordering tendency at least short range, as well.
There have been
  reports of short-range cation ordering of Na$^+$ or K$^+$ and
  Bi$^{3+}$ in Na$_{1/2}$Bi$_{1/2}$TiO$_3$ (NBT)
  and K$_{1/2}$Bi$_{1/2}$TiO$_3$
  (KBT),\cite{park1994jamceram,jones2002powder,jones2002acta,petzelt2004jphys}
  which support this view. Here we consider the ordered system, both because
it is simpler, which facilitates the calculations and analysis, and
because it helps to avoid computational artifacts, such as polarization
because of the particular
symmetry breaking chemical ordering in a given supercell.

  There are various factors at play that may drive ferroelectricity in
  NaBiScNbO$_6$ (NBSN), KBiScNbO$_6$ (KBSN) and RbBiScNbO$_6$
  (RBSN). These materials have Nb$^{5+}$ at the $B$-site which
  favors ferroelectricity, as in KNbO$_3$. The end-point
  perovskite BiScO$_3$ has a very small tolerance factor
  $t=0.85$ and a stereochemically active Bi$^{3+}$ at the $A$-site,
  two factors that are considered to be important in $A$-site driven
  materials, leading to strong lattice instabilities.
Furthermore, the large size
  difference at $A$-site may also enhance the off-centering of the
  $A$-site ions through frustration of tilt modes.
However, in addition to $A$-site off-centering, low
  tolerance factors also strongly favor
rotation of the $B$O$_6$ octahedra. These
rotations compete with ferroelectricity
in general.
In order to sort this out
it is important to use supercells that have even numbers of
  units along the [100], [010] and [001] directions to accommodate the
  various Glazer tilt patterns.\cite{glazer1972acta}
We used 40 atom 2$\times$2$\times$2 supercells and
  assumed both $A$- and $B$-site rocksalt chemical ordering.
  In addition to allowing various Glazer tilt patterns, these
  supercells are cubic and
therefore non-polar as regards to chemical ordering.
Thus, any off-centering is a consequence of lattice
  instabilities and not an artifact due to cation ordering in the
supercell.

\section{RESULTS AND DISCUSSION}

  To our knowledge, syntheses of NaBiScNbO$_6$, KBiScNbO$_6$ and
  RbBiScNbO$_6$ have not been reported.  We therefore used theoretical
  LDA lattice parameters.
We note that in oxides with heavy elements the LDA typically leads to
a small underestimation of the lattice parameter by $\sim$ 1-2\%.
If this is the case here, it will work against ferroelectricity
and in favor of competing tilt instabilities.
\cite{fornari-tilt}
We assume a pseudocubic structure to evaluate the lattice
  parameters and relaxed all atomic coordinates with no symmetry
  constraints.  This was done as a function of the lattice parameter
  to find the equilibrium volumes for these materials.  The calculated
  LDA lattice parameters for the minimum energy were 3.98 \AA, 4.03
  \AA\ and 4.07 \AA\ for NaBiScNbO$_6$, KBiScNbO$_6$ and
  RbBiScNbO$_6$, respectively.  These show the expected trend with
  increase in the $A$-site ion size.

\begin{figure}[ht!]
\begin{tabular}{cc}
\includegraphics[width=4.0cm,clip]{BNSN-pos.eps} & \includegraphics[width=4.0cm,clip]{BKSN-pos.eps} \\
(a) NaBiScNbO$_6$ & (b) KBiScNbO$_6$ \\
\multicolumn{2}{c}{\includegraphics[width=4.0cm,clip]{BRSN-pos.eps}} \\
\multicolumn{2}{c}{(c) RbBiScNbO$_6$} \\
\end{tabular}
\caption{\label{structure}
  (color online) Projections onto a (010) plane of the structures of
  the relaxed 40 atom pseudocubic (a) NaBiScNbO$_6$, (b) KBiScNbO$_6$ and (c)
  RbBiScNbO$_6$ supercells.
  The $B$-O bonds are shown.
  The Bi ions are denoted by light purple spheres,
the Sc ions by blue, the Nb
  ions by light green, and the O ions by red.
  The Nb, K and Rb ions are shown by dark yellow spheres in each panel.
  The O octahedra for Sc are shown by (semi-transparent) blue boxes and those
  for Nb by (semi-transparent) green.
  The solid lines show the unit cell boundaries of each material.
}
\end{figure}

  Fig.~\ref{structure} shows the structures of the relaxed 40 atom
  pseudocubic NaBiScNbO$_6$, KBiScNbO$_6$ and RbBiScNbO$_6$ supercells
  at the equilibrium volume. As expected, the
  octahedral tilting is reduced with larger $A$-site ion size
  difference (note that the ionic radii of $A$-site ions are
  $r_{\text{Bi}^{3+}}=1.31$ \AA, $r_{\text{Na}^{+}}=1.53$ \AA,
  $r_{\text{K}^{+}}=1.78$ \AA\ and $r_{\text{Rb}^{+}}=1.86$ \AA,
  respectively). In particular, there is relatively
 little tilt in RbBiScNbO$_6$,
  which has the largest $A$-site size difference.
  Fig.~\ref{structure} also shows large displacements of the Bi
  ions from the ideal positions at the centers of the O cages.

\begin{figure}[ht!]
\includegraphics[width=8cm,clip]{BNSN-disp.eps}
\caption{\label{offcenter_NBSN}
  (color online) Cation off-centerings along the Cartesian directions and
  their magnitude with respect to the center of their O cages (the 12 nearest
  O ions for the $A$-site and the 6 nearest for the $B$-site) in the relaxed
  40 atom NaBiScNbO$_6$ supercell.
}
\end{figure}

\begin{figure}[ht!]
\includegraphics[width=8cm,clip]{BMSN-disp.eps}
\caption{\label{offcenter_BMSN}
  (color online) Average magnitude of cation off-centerings with respect to the
  center of their O cages in the relaxed 40 atom NaBiScNbO$_6$, KBiScNbO$_6$ and
  RbBiScNbO$_6$ supercells.
}
\end{figure}

  The cation off-centerings in NaBiScNbO$_6$ from the center of their
  O cages is shown in Fig. \ref{offcenter_NBSN}. All cations
  off-center along [111] direction and the magnitude of displacement
  is almost the same for a given cation. The Bi ions have a
  large off-centering, which is a consequence of the difference in
  size compared to the other $A$-site ion and also its stereochemical
  activity. In addition to the off-centering of $A$-site cations,
  there are displacements of $B$-site cations as well. For
  NaBiScNbO$_6$, the average magnitudes of the cation off-centerings are
  0.62 \AA\ for Bi$^{3+}$, 0.28 \AA\ for Na$^{+}$, 0.18 \AA\ for
  Sc$^{3+}$ and 0.24 \AA\ for Nb$^{5+}$, respectively. This
  cooperation of all cations in the ferroelectric distortion is not
  unusual and is also seen in KNbO$_3$, BaTiO$_3$, PbTiO$_3$,
  BiPbZnNbO$_6$ and
  BiSrZnNbO$_6$.\cite{singh1992ferro,ghita2005prb,takagi2010prb} The
  cation off-centerings in KBiScNbO$_6$ and RbBiScNbO$_6$ are also
  collinear along [111] direction.

  As mentioned, the LDA lattice parameters of these supercells
  may be underestimated by 1-2$\%$. To study the robustness of
  ferroelectric displacements, we performed relaxation calculations
  for larger values of lattice parameters that lie between the equilibrium
  lattice parameters
(3.98 \AA, for NaBiScNbO$_6$, 4.03 \AA, for KBiScNbO$_6$ and 4.07
  \AA, for NaBiScNbO$_6$) and
the higher value of 4.23 \AA. We found ferroelectric cation off-centerings
  for each such calculation, confirming the robustness of ferroelectric
  distortions against LDA volume errors.

  Fig.~\ref{offcenter_BMSN} shows the average magnitudes of the cation
  off-centerings in NaBiScNbO$_6$, KBiScNbO$_6$ and RbBiScNbO$_6$.
  The displacements of Bi and Nb increase as the
  $A$-site size difference is increased. The reason for this increase
  in displacement is two-fold. First, the larger size difference
  decreases the tilting of $B$O$_6$ octahedra and provides more volume
  for displacement of Bi and Nb ions. Secondly, the lattice
  parameter increases as the size of $M$ ion increases. The
  ferroelectricity becomes stronger with increasing volume, as is
  usual in perovskite oxides. \cite{samara}
Competing with this is the fact that,
since polarization is dipole per unit volume, larger unit cell volume works
against high polarization.
It is interesting to note that in
  contrast to Bi and Nb ions, the off-centerings become smaller for the
  $M$ ions, while there is no appreciable change in the displacement
  of Sc ion. As discussed below, there is little
  covalency between the unoccupied states of the $M$ ions with the occupied
  O 2$p$ states in these
materials. This works against
  off-centering.  Furthermore, $r_{\textrm{Na}^+}
  < r_{\textrm{K}+} < r_{\textrm{Rb}^+}$, and as the radius of an atom
  increases, there is less volume available for off-centering. This
  explains the smaller displacement of Rb ions as compared to Na ions.

\begin{figure}[ht!]
\includegraphics[width=9cm,clip]{BNSN-dos.eps}
\caption{\label{dos_NBSN}
  (color online) Electronic DOS of the pseudocubic relaxed NaBiScNbO$_6$ and the
  Bi $p$, Sc $d$, Nb $d$ and O $p$ projections. The valence band maximum is
  taken as the energy zero.
}
\end{figure}

  We now consider the electronic structure of these materials as it
  pertains to ferroelectricity. Fig. \ref{dos_NBSN} shows the electronic
  density of states (DOS) of the pseudocubic relaxed NaBiScNbO$_6$ and
  the projections onto Bi $p$, Sc $d$, Nb $d$ and O $p$
  pseudo-wavefunctions (the DOS of KBiScNbO$_6$ and RbBiScNbO$_6$ are
  almost identical and are not shown here).  The O 2$p$ states provide the
  DOS from -5 eV to the valence band maximum and there is a gap that
  separates the O 2$p$ derived states from the unoccupied metal
  states. The calculated LDA band gap is 3.2 eV, 3.1 eV and 3.1 eV for
  NaBiScNbO$_6$, KBiScNbO$_6$ and RbBiScNbO$_6$, respectively.
The actual band gaps are likely to be larger than these calculated ones
due to LDA band gap underestimation.
In any case, based on the calculated gaps,
  these materials are expected to be good insulators at ambient
  temperature.
  The O 2$p$ derived valence bands contain
  significant admixtures of
the nominally unoccupied metal states, which are mainly of Bi 6$p$, Sc
  3$d$ and Nb 4$d$ character. This mixing of occupied O 2$p$ states
  with unoccupied $d$ states of metals implies chemical bonding and is
  responsible for enhanced Born effective charges and ferroelectric
  off-centering, as in PbTiO$_3$ and
  BaTiO$_3$.\cite{cohen1992nature,zhong1994prl} Nb 4$d$ states are
  dominant near the conduction band minimum and this low energy favors
  hybridization with O 2$p$ states, as discussed in the case of
  PbMg$_{1/3}$Nb$_{2/3}$O$_3$ and KNbO$_3$ in comparison with
  KTaO$_3$.\cite{singh1996prb,suewattana2006prb} However, the Sc 3$d$
  states lie further above the conduction band minimum and this
  results in a somewhat weaker hybridization with O 2$p$ states.
  We do not find significant mixing of unoccupied Na/K/Rb $s$
  states with the occupied O 2$p$ states as may be expected
considering the very large electronegativity difference between these
elements and O.
  In NBSN, the influence of covalency is reflected in
  the enhanced Born effective charges of 4.38 for Bi, 4.73 for
  Sc and 6.42 for Nb as compared to the
very modest enhancement of (z$^*$=1.14) for Na.
  Similar numbers are obtained for KBSN and RBSN (see
  Table~\ref{tab:comparison}).

  In contrast to the trend in the cation off-centerings, the Born effective
  charges of Bi and Nb decrease, while those of $M$ and Sc
  ions increase when the $A$-site size difference becomes
  larger. These decreases in Born charges of Bi and Nb ions would mean
  lower values of polarization if the
Born charges were independent of atom position and
the off-centering were of the same magnitude
in all compounds. In fact, however, the polarizations as
  calculated with the Berry phase method are 73 $\mu$C/cm$^2$ for
  NBSN, 77 $\mu$C/cm$^2$ for KBSN, and 87 $\mu$C/cm$^2$.

\begin{table}[ht!]
\caption{\label{tab:comparison}
  Comparison of properties of NaBiScNbO$_6$, KBiScNbO$_6$ and RbBiScNbO$_6$,
  where $r_{\text{M}^+}$ denotes the ion radii of $M$ ion, $a$
  denotes the pseudocubic lattice parameter, $z^*$ denotes the average Born
  effective charge, $\delta$ denotes the average cation off-centering with
  respect to the O cages, and $P$ is the magnitude of polarization.
}
\begin{ruledtabular}
\begin{tabular}{lccc}
               & NaBiScNbO$_6$    & KBiScNbO$_6$     & RbBiScNbO$_6$ \\ \hline
$r_{M^+}$(Na/K/Rb)
               & 1.53 \AA         & 1.78 \AA         & 1.86 \AA \\
$a$(LDA)       & 3.98 \AA         & 4.03 \AA         & 4.07 \AA \\
$\delta$(Bi)   & 0.62 \AA         & 0.67 \AA         & 0.77 \AA \\
$z^*$(Bi)      & 4.38             & 4.21             & 3.73 \\
$\delta$(Na/K/Rb)
               & 0.28 \AA         & 0.22 \AA         & 0.20 \AA \\
$z^*$(Na.K/Rb) & 1.14             & 1.17             & 1.22 \\
$\delta$(Sc)   & 0.18 \AA         & 0.16 \AA         & 0.16 \AA \\
$z^*$(Sc)      & 4.73             & 4.81             & 4.92 \\
$\delta$(Nb)   & 0.24 \AA         & 0.27 \AA         & 0.31 \AA \\
$z^*$(Nb)      & 6.42             & 6.23             & 5.80 \\
$P$(111)       & 73 $\mu$C/cm$^2$ & 77 $\mu$C/cm$^2$ & 87 $\mu$C/cm$^2$ \\
\end{tabular}
\end{ruledtabular}
\end{table}

  As mentioned, high piezoelectric performance is induced by
  the polarization rotation from the rhombohedral state to tetragonal
  state near the MPB. We studied the tendency towards tetragonality by
  calculating the total energies of NBSN, KBSN, and RBSN as a function
  of imposed tetragonal strain ($0.94<c/a<1.06$) while keeping the
  volumes equal to their equilibrium volume for the pseudocubic
  cells. In all materials, the lowest energy is at $c/a=1.00$ and the
  cation off-centerings are collinear and along [111] direction. The
  cations do not off center along [001] directions even with large $c/a$
and the
  off-centerings remain practically along the
[111] direction over the range of $c/a$
  values that we tried, implying robustness of the rhombohedral
  ferroelectricity. Therefore, these are rhombohedral ferroelectric
materials, and as such it is of interest to alloy with
  tetragonal ferroelectrics in order to produce a potential MPB.

  Related to this, a similar compound Na$_{0.5}$Bi$_{0.5}$TiO$_3$
  (NBT) is also a rhombohedral ferroelectric\cite{buhrer62} with $T_C
  = 593.15$ K and polarization 38 $\mu$C/cm$^2$.\cite{takenaka91}
  Solid solutions of NBT with tetragonal
  BaTiO$_3$ (NBBT) show a useful MPB with
  polarization 20 $\mu$C/cm$^2$.\cite{takenaka91} While the material
has not proved superior to other compounds
such as Pb(Zr,Ti)O$_3$ in transducers,
  it does have a lower free permittivity
  and a high electromechanical coupling factor that make it an interesting
  lead-free actuator material.
The materials in the present study are similar
  in that they are rhombohedral ferroelectrics and may be considered
to be related to NBT with Ti replaced by
  Sc$_{0.5}$Nb$_{0.5}$. By analogy, solid solutions of these materials
  with BaTiO$_3$ may provide materials that are useful as lead-free
  piezoelectrics.
Another possibility may be alloying with the super tetragonal material
Bi(Zn,Ti)O$_3$. \cite{suchomel}

\section{CONCLUSIONS}

  We investigated the polar behavior of double perovskites
  NaBiScNbO$_6$, KBiScNbO$_6$ and RbBiScNbO$_6$ using density
  functional calculations on small supercells. We find high
  polarization along [111]
  directions. The main contribution to the polarization comes from
  large displacements of Bi and more modest displacements of Nb
ions, which, however, have high Born charges.
We find that the polarization
  increases as the $A$-site size difference becomes larger.  These
  materials also have substantial band gaps and the rhombohedral
  ferroelectricity is robust.
 It will be of interest to investigate whether solid
  solutions of these materials with tetragonal ferroelectrics
  show MPBs possibly providing another avenue for development of lead-free
  piezoelectrics.

\section*{Acknowledgements}

  This work was supported by the Materials Sciences and
  Engineering Division, Office of Basic Energy Sciences,
U.S. Department of Energy
  (AS,VRC,DJS) and the Office of Naval Research (ST).

redpajama_set_name: RedPajamaArXiv


text:
Just Played
Month of Mozart
Behind The Baton
CPR Classical Celebrates 250 Years Of Beethoven
By Monika Vischer
· Aug. 28, 2020, 8:00 am
2020 marks 250 years since the birth of Ludwig Van Beethoven and CPR Classical celebrates!
Ludwig van Beethoven's influence has permeated cultural consciousness through three intrinsically linked threads: his transformative music, his unimaginable story of triumph and his tenacious commitment to equality for all mankind, manifested in his music, which is still profoundly resonant 250 years later.
Beethoven himself knew he was to leave a legacy with his extraordinary musical gift. So great was his conviction that in his darkest hour, he confronted the cruel irony of deafness head-on, choosing life over death.
"… It was only my art that held me back. It seemed to me impossible to leave the world until I had brought forth all that I felt was within me. … Patience, they say, is what I must now choose for my guide, and I have done so."
Beethoven, Heiligenstadt Testament, 1802
Beethoven resolved to light a torch of hope and resilience, and delivered on his choice with the inspiring music he wrote. To this day, his music cuts across divides of culture, class and generations with the most ubiquitous melodies ever known, from the resounding opening of Symphony #5, to Für Elise for solo piano, to his anthem of peace, brotherhood and celebration of humanity - -- the grand "Ode to Joy" from his final Symphony #9.
Discover the genius of one of history's greatest minds through the remainder of 2020, as CPR Classical shares with you Beethoven's music, stories and how he is relevant to us today. Tune-in to our special programming:
Beethoven Feature Stories
Aug. 24 - Dec. 16: Learn what shaped Beethoven's music through a series of short audio stories from CPR Classical hosts. Topics include how he composed some of his greatest works in deafness, the truth behind Beethoven's mysterious "Immortal Beloved", how his "Eroica" Symphony cemented Napoleon's infamy and more.
The Beethoven 250 Concert Series
Oct. 9 - Dec. 13: Ten weekend concerts putting the best Beethoven works on full display, including the symphonies, piano sonatas, chamber works, his only opera and lesser-known treasures. The concert series airs Fridays at 12:30 p.m., Saturdays at 6 p.m. and Sundays at 4 p.m.
250 Minutes of (your favorite!) Beethoven
Nov. 9: Throughout the fall, we'll poll listeners on their favorite Beethoven pieces to create a 250-minute program. This show will debut on Nov. 9 at 10 a.m. and will re-air seven times with its final broadcast on Dec. 16.
The Beethoven Birthday Party
Dec. 16: On the celebration of his 250th birthday it's non-stop Beethoven starting at 6 a.m. — the symphonies, sonatas, chamber works and more, interspersed with Coloradans' stories about how Beethoven has impacted their lives.
Listen to The Beethoven 9 podcast (2015)
An in-depth exploration of Ludwig van Beethoven's nine symphonies, featuring host Monika Vischer and Beethoven biographer Jan Swafford.
Learn more about Beethoven
Read stories about Beethoven's life, works and impact.
Listen to CPR Classical by clicking "Listen Live" on this website. You can also hear CPR Classical at 88.1 FM in Denver, at radio signals around Colorado, or ask your smart speaker to "Play CPR Classical."
Love Classical Music?
Stay in touch with our hosting team at CPR Classical and learn more about the classical events occurring in the community. Sign up here for our monthly newsletter.
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New Earth [energyflash] ~ 11162013 Reconstructing a new time line where old no longer matters we emerge in no where land the land of "here and now" found listening to the new harmonics. Auditory listening is enhanced, a humming sound...grasping a plenitude of ideas from all-that-is illuminated by particles of light feed from the great central sun re purposing human nature. By varying degrees we are returning to our holographic container giving rise to the numerical numbers initiating the never existing before earth human. Birthed from nature's innate intelligence giving solidity to structure.


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Just a pro drone builder coming out of New York .
Now they let me fly check out some of my cool vide...View MoreJust a pro drone builder coming out of New York .
check out this cool video i did with a friend ( travis ) builds cool custom stuff like this all the time .
save 10% with discountcode ( wa...View Morecheck out this cool video i did with a friend ( travis ) builds cool custom stuff like this all the time .
today my team took me to some cool spots .
SAVE MONEY WITH DISCOUNTCODE " washbuilt "


text:
Friends of Shenandoah Mountain
Shenandoah Mountain National Scenic Area >
Little River Wilderness
Bald Ridge Wilderness Addition
Skidmore Fork Wilderness
Lynn Hollow Wilderness
Collaboration with GWNF Stakeholders
Wilderness FAQs
National Scenic Area FAQs
Landowner FAQs
History of Shenandoah Mountain >
History of Staunton Dam
History of High Knob Fire Tower
References on Shenandoah Mountain Ecology
Threats/Benefits
Threats >
Atlantic Coast Pipeline
Short Hikes
Birding and Wildlife Trails
Introduction | Cloudburst on Shenandoah Mountain | Stokesville is Gone! | The Cramer Family | The Michael and Emmett Families
Strothertown | The 4-H Campers and Girl Scouts | Harry Jopson's Story | After the Flood
Staunton Dam was the only reservoir on Shenandoah Mountain in 1949. Photo by Lynn Cameron
The initial response by local, state and federal agencies, churches, organizations and neighbors was strong as they worked together to offer assistance, restore order, and take steps to prevent future flooding. The National Guard came to keep order in Bridgewater, help with rescue work, and help people dig out of the mud and debris. The police and neighboring fire departments helped, as did churches, Ruritan Clubs, the North River Future Farmers of America (FFA), and many others. In addition to all the cleaning up, repairing and rebuilding, it was necessary to inoculate against typhoid fever, a real risk when water is contaminated. Mennonites from Parkview community in Harrisonburg set to work building 10 houses in Stokesville, furnishing both materials and labor for these homes.
Soon after the floodwaters subsided, engineers went to work plugging channel breakouts and removing gravel bars, rocks, snags and brush impeding the flow of water. Within a year the Town of Bridgewater and the U.S. Army Engineers had proposed a flood control levee along the Dry River in Bridgewater to be paid for by the Army Engineers emergency fund. ("Bridgewater Plan" April 1950) The U.S. Department of Agriculture focused on work along the North River at Stokesville, Towers, Spring Creek, Briery Branch, and Beaver Creek. ("50,000 for Flood" 3 August 1949)
Channel restoration near Camp Todd, 1949. Photo from GW&JNF Archives.
North River Restoration
The upper North River had historically been considered among the best native brook trout fisheries in Virginia. (Hack & Goodlett 1960) Soon after the flood of 1949, the Forest Service cleaned out debris in the upper North River to improve flow and restore the channel. According to Fisheries Biologist Dawn Kirk, "Continued channel erosion, deposition, and cleanout operations resulted in an unstable channel and bridge maintenance problems" (Kirk 2013)
Beginning in 1959, the Forest Service undertook an extensive 6-year restoration project on the upper North River that involved installing gabion baskets to stabilize the stream channel and restore native brook trout habitat. Gabions, wire baskets filled with rock, were installed upstream from what is now Elkhorn Lake to beyond Camp Todd.
Gabion walls installed along upper North River. Photo from GW&JNF Archives.
Three types of gabions were installed to prevent the banks from eroding and depositing silt and debris into the riverbed:
Cross-channel weirs - 7
Walls - 69
Groins - 17
The cross-channel weirs were installed "to reduce velocities and create fishing holes." (Kirk 2013)
This extensive gabion work had mixed results. The cross-channel weirs were all washed out before the flood of 1985, which then washed out most of the walls and groins. The Forest Service monitored the gabions over time and decided not to repair or replace them since they were not effective, for the most part. The agency concluded that it's better to "work with the energy of the river, not against it." (Kirk 2013) Remnants of some the gabions can still be seen from Forest Road 95 today.
In 2005, the Forest Service relocated sections of Forest Road 95 to higher ground to reduce the number of stream crossings and bridges and minimize future flood damage to the road.
Flood Control Dams
Soon after the Flood of 1949, Dr. Harry (Doc) Jopson of Bridgewater and others formed the North River Land and Water Conservation Association to determine what steps could be taken to help avert another disaster of this magnitude. Chaired by Doc Jopson, the Association worked closely with the U.S. Soil Conservation Service (USSCS), the U.S. Forest Service, the Virginia Division of Forestry, the Army Engineers, and the Shenandoah Valley Soil Conservation District to determine what actions would be most effective. They concluded that flood control dams were needed in the North River watershed. ("Flood Control Session June 8" 1 June 1960) The USSCS determined where they should be located to do the most good. Their initial plan called for three dams:
one upstream from Staunton Dam (Elkhorn),
one on Little River along Tilman Rd. (Hearthstone), and
one on Skidmore Fork (Todd Lake)
Over a period of 14 years, the following flood control dams were built on North River and its tributaries in response to the Flood of 1949:
Todd Lake -1963 (Augusta)
Union Springs -1965 (Rockingham)
Elkhorn Lake -1965 (Augusta)
Hone Quarry -1966 (Rockingham)
Briery Branch -1966 (Rockingham)
Hearthstone Lake -1966 (Augusta)
Dry Run -1969 (Rockingham)
Switzer Lake -1972 (Rockingham)
Dry River -1976 (Rockingham)
When the Election Day Flood hit in 1985, these dams had their first big test. All of them overflowed through their emergency spillways , but none was breached. Today these dams serve additional purposes, such as for municipal water supplies and recreation.
Flood Prevention through Forest Protection
State forester Wilson Campbell wrote that the extensive and repeated clearcutting and burning of our Shenandoah River watershed forests set the stage for flood problems. A healthy forest absorbs water and can be the best protection against flooding. "The better our watershed forests are in condition to absorb rainwater, the less runoff and subsequent flooding." ("Forest Influences" 27 July 1949)
Briery Branch Dam, 1966. Photo by Lynn Cameron
Hone Quarry Dam. 1966. Photo by Christy Bradburn
Elkhorn Lake, built on the North River above Staunton Dam for flood control in 1965, now a popular recreation lake and a municipal water source for Staunton. Photo © Brad Striebig
Hearthstone Dam on Little River, 1966. Photo by Lynn Cameron
Todd Lake, built on Skidmore Fork, in 1963. Todd Lake now has a swimming beach, campground and picnic area. Photo by Lynn Cameron
Switzer Dam, 1972, built for flood control and municipal water for Harrisonburg. Photo © Lila Marks
Union Springs Dam, built on private land in 1965. Photo by Christy Bradburn
"$50,000 for Flood Control Work Above Bridgewater." Daily News Record, 3 August 1949.
Campbell, Wilson. "Forest Influences Shenandoah Valley Flood Problems." Staunton News Leader, 24 July 1949.
"Flood Control Session June 8." Staunton News Leader, 1 June 1960, p. 10.
Kirk, Dawn. "Controlling the North River: Lessons in Restoration." George Washington & Jefferson National Forest. Presentation to Virginia Chapter, American Forestry Society Meeting, Lexington, VA, February 27-28, 2013. Link to pdf of presentation
Hack, J. T. and Goodlett, J. C. Geomorphology and forest ecology of a mountain region in the central Appalachians.
USGS Professional Paper 347, 1960. This is about the Flood of 1949 in the Little River area.
For more about the flood control reservoirs, see:
Shenandoah Valley Soil and Water Conservation District (Rockingham)
Headwaters Soil and Water Conservation District (Augusta).
Home | Proposal | Learn | Threats/Benefits | Supporters | News | Endorse
Contact Friends of Shenandoah Mountain
info@friendsofshenandoahmountain.org
5653 Beards Ford Rd.
Mt. Crawford, VA 22841


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Sometimes, I think personal injury lawyers – myself included – subconsciously tend to think we know better than the client in terms of what damages they have that really matter to a jury. But we often get it wrong. More often than not, what is in the client's heart is also going to be what has the most impact on a jury. Paul Luvera offers a tip that he picked up in Paris of all places on how to get clients to open up about what their real injuries are and how to present those injuries to a jury. Going back and checking this blog post in 2017, I see the link is no longer available. But the message is important today as when this blog post was first written.
Early in my career as a plaintiffs' lawyer, we tried a case where I spent a great deal of time preparing the witness to testify. Literally 20 minutes before she testified, she told me in a whisper what really upset her about her injuries. She had lots of nieces and she went from being the fun aunt to the aunt who always complained of being in pain. That translates okay in this blog post. But you had to be there and you had to listen to the way she told the story. It took me two seconds to realize it was very real to her. I brought out the story on direct and it became one of the themes of our case and one of the reasons, the jury told me later, they arrived at the verdict they did.
That translates okay in this blog post. I'm sure you generally get it. But you had to be there and you had to listen to the way she told the story. It took me two seconds to realize it was very real to her. It moved me. I brought out the story on direct and it became one of the themes of our case and one of the reasons, the jury told me later, they arrived at the verdict they did.
Every professional thinks they know what is best for their clients and they are often right and the client is dead wrong. An exception to that rule is pain and suffering damages where the client typically knows in their heart exactly what damages matter the most.
How do you do this? You have to spend some time with your client before trial to get to know them as people. You ask them a ton of questions. You do all of the little things to understand the science of the injuries and what the medical records say about the client's injuries.


text:
We found 5 episodes of Metagenics Institute Podcast with the tag "science".
"science" RSS Feed
Exploring the Endocannabinoid System, PEA and OEA with Prof Daniele Piomelli
December 16th, 2020 | 1 hr 5 mins
cannabinoid research, cannabis, daniele piomelli, health, metagenics, nathan rose, nature, nature medicine, neuroscience, professor, science, university of california
Daniele Piomelli joins us from the University of California, Irvine, where he is the Louise Turner Arnold Chair in Neurosciences and Distinguished Professor of Anatomy and Neurobiology, Pharmacology and Biological Chemistry. Piomelli is the author of over 400 peer-reviewed articles in journals such as Nature, Science, Nature Medicine, PNAS and Nature Neuroscience, three books, and 34 patents. He is also the Director of the Centre for the Study of Cannabis and Editor-in-Chief of Cannabis and Cannabinoid Research, the first peer-reviewed journal entirely dedicated to the study of cannabis, its derivatives, and their endogenous counterparts in the human body. In this episode, he shares a wealth of information regarding the endocannabinoid system and the acylethanolamides, oleoylethanolamide (OEA) and palmitoylethanolamide (PEA).
A Tour of the Vagal Nerve with Dr Adrian Lopresti
September 10th, 2019 | 44 mins 27 secs
curcumin, dr adrian lopresti, health, metagenics, nathan rose, natural alternatives, probiotics, research, science, turmeric
Take a trip down the vagal nerve with Nathan Rose and his guest Dr. Adrian Lopresti as they wander the landscape of strategies to stimulate this infamous pathway. Dr. Lopresti is a Clinical Psychologist in private practice, and senior researcher at Murdoch University with a host of published articles under his belt.
Resolving Inflammation using SPMs with Prof Charles Serhan
August 5th, 2019 | 52 mins 8 secs
alternative medicine, health, healthy living, immune, inflammation, metagenics, nathan rose, natural, professor charles serhan, research, science, spms
With forty years in lipid research and over 523 peer reviewed publications, Professor Charles Serhan discusses specialized pro-resolving mediators (SPMs) with Nathan Rose.
From Science to Clinic: How to Combat Obesity and Weight Stigma with Dr Scott Kahan
January 11th, 2019 | 53 mins 32 secs
carbohydrate insulin, diet, healthcare, hypotheses, low carb, low fat, metabolic, microbiome, obesity, patient, science, stigma, treatment, weight, weight loss
Dr Scott Kahan is the Director of the National Center for Weight and Wellness. A researcher, author, lecturer and experienced physician, he specialises in treating obesity. Dr Kahan balances the latest scientific approaches to treating obesity, with his passion for implementing behavioural changes.


Tips for faster delivery turn-around!
I'm a movie buff; not big-time, but I like watching movies. In 2007 I decided to start using Netflix to rent movies over the net--I collected data on the movies I rented and kept it in an Excel file.
I had figured that this was the type of data that Neflix might like to see: data about delivery times for an entire year for a specific town. I was going to send this Excel file to Netflix but alas they advertise no general email address to which I could attach such a file so I just decided to create a web page instead.
In general, I really like the service. For me, I chose their 1-movie-at-a-time option, which is plenty often for me to rent a movie (about 5 movies per month). I also like that when they receive a movie back in the mail, they notify you via email. And they also send you an email when they've shipped the next movie (95% of the time, this occurs on the same day).
Midway through 2007, they improved their service in two ways: (1) they reduced the rate of the 1-movie-at-a-time from $9.99 to $8.99 per month; (2) they began a service where you could watch a limited selection of movies/TV shows online on your computer. Both winning ideas. And, in January of 2008, online viewing became unlimited for all but the lowest service level (see the news page for more details about this).
The Netflix online movie viewer comes in the form of a plug-in for Internet Explorer (6 or later) which you must install. The viewer does not work with other browsers such as Firefox at this time. However, the viewer plug-in within IE, AXPlayer, is superb in my opinion. You can resize your browser window to any size, or view the content in full-screen mode. The software is smart about keeping track of how much content you've actually viewed so if you want you can skip parts of a movie and only watch what you want to (of course, this doesn't really matter with unlimited viewing).
At any rate, I'll likely continue subscribing to the service because it's cheap per movie and fairly convenient (movies don't get delivered to my door like they advertise; instead, they come to a US Mail "kiosk" which is about a block and a half away).
The three movies that I rated a "9" were: The Alien Saga, Deja Vu, and Stranger Than Fiction. The two movies earning only a "2" were: Borat and Vacancy.
I live in Laramie, Wyoming; the nearest Netflix distribution site is in Denver, about 100 miles away.
I rented 65 movies from Netflix.
I spent about $111.19 on this service (including tax). So my average cost per movie rental was about $1.71.
95% of the time, Netflix shipped my next movie the same day they received back my previous movie.
Once I figured out the best time of day and the best mailbox to use when returning a movie, 60% of the time Netflix received it 1 day after I mailed it.
I received into my mailbox no movies faster than 2 days.
Receiving a movie took more than 2 days 25% of the time.
Once it took 9 days for Netflix to receive a movie I mailed back, but I believe that was because I had delivered it into the "outgoing mail" slot of my block's shared mailbox kiosk instead of to the post office's mailbox they designated for flats and DVD's.
A round trip to the post office from my house is a bit more than 3 miles. By driving there for the sole purpose of mailing back a Netflix movie, therefore, I figure I use about 75 cents of gas in my SUV. This is why I always try to combine errands, or else bike to the post office when my only errand is mailing back a movie.
64 out of the 65 movies I rented came from my "default" shipping center in Denver. There was one case, however, where apparently the movie was not available in Denver and was therefore shipped from Kansas City. This is fine, but it did take an extra day in the mail each way and I wish i'd been informed of this and had been given a choice to skip that movie.
You can download the Excel file containing all my data here.


text:
A Magical May Season Finale
with guest soloist Ye-jin Han, violin
Woomyung Choe and the Bergen Symphony Orchestra presents A MAGICAL MAY SEASON FINALE at 7:30 pm on Saturday, June 2, 2018 in the Fort Lee High School Auditorium, 3000 Lemoine Ave., Fort Lee, NJ. The effervescent Shostakovich Festive Overture starts the evening much like an uncorked bottle of champagne spilling over. Concerto for Violin No. 3 by Saint-Saëns follows, opening with an easygoing Parisian feel according to playwright George Bernard Shaw. Guest violinist Ye-jin Han stars, and her virtuosity is evident in her pure, expressive tone and effortless playing. Rachmaninoff's vast and glorious Symphony No. 2 rounds out the concert with all the gestures of a "victory symphony."
Dmitri Shostakovich (1906-1975), who lived through the vicissitudes of Soviet Russia, was at his most characteristic when expressing melancholy and sarcasm. None of these traits, however, mark his unabashedly cheerful and glitzy Festive Overture in A Major, Opus 96. It was written in great haste when the panic-stricken officials of the Bolshoi Theater found themselves without an opening work for their 1954 anniversary celebration of the 1917 Russian Revolution. This most successful and delightfully ebullient "pièce d'occasion" has been a popular favorite at important official events ever since.
Concerto for Violin No. 3 in B minor, Opus 61 is one of a trio of violin concertos by the most renowned French composer of the 19th century--Camille Saint-Saëns (1835-1921).
The work was dedicated to and premiered by the wildly famous Spanish violinist and composer Pablo de Sarasate. By 1880, when it was composed, Saint-Saëns had cultivated his talent for writing memorable melodies, and for tailoring his concertos to their specific soloist.
The melodic invention and impressionistic subtlety present significant interpretive challenges, which will be well met by tonight's remarkable international prize-winning soloist Ye-jin Han, who has performed worldwide, including a New York debut at Carnegie Hall's Weill Recital Hall.
Sergei Rachmaninoff (1873-1943) had the goods to weather the whims of critical opinion and maintain his popularity. Audiences loved Rachmaninoff's music during his lifetime; they still do. He rarely smiled in public, but his friends--and his music--testify to his warm, generous nature. And this evening, we are fortunate to hear one of his best-loved works, Symphony No. 2 in E minor, Opus 27, a long, ambitious 1906-07 work that is so fresh and so beautiful, that at the end one is surprised how quickly the hands of the clock have moved.
Ticket prices are $25 for general seating, $20 for seniors and students, and children up to age 17 are admitted free of charge. Tickets may be purchased at the door or in advance at Main Violin Shop, 523 Summit Ave.,, Fort Lee, NJ 07024. For information call 201-704-7584 or 413-446-6266 or go to www.bergensymphony.org /
The evening's soloists
The versatile Korean violinist/violist Ye-jin Han has performed throughout the US, Canada, and Europe extensively and made her New York Recital debut in 2009 at Carnegie Hall's Weill Recital Hall. Praised for her "pure, expressive tone" and "effortless playing", Ms. Han has been prize winner at many competitions including the Citta di Brescia International Violin Competition in Italy and Five Towns Music and Arts Foundation Young Musician Competition, Lilian Fuchs Memorial Chamber Music Competition in New York. As a recitalist and chamber musician, she has collaborated with many world renowned artists and ensembles such as the Emerson String Quartet and has appeared at the Banff Centre,Tibor Varga, Mozarteum International Academy, Carl Flesch Akadimie, Fountainebleau Schools, and Casalmaggiore festivals. She is also an active chamber music player and given concerts in greater New
York area through many venues, including Montgomery Chamber Music Series and Si-yo Music Society Foundation. Ms. Han holds a Master of Music and Professional Study degree from Manhattan School of Music and Doctor of Musical Arts degree from Stony Brook University. She is currently a violin/viola/chamber faculty at Long Island Conservatory of Music and also holding a private studio, which has produced many competition winners and musical leaders at State/local youth orchestras.


text:
Dr Bethwyn Evans
Linguistics, School of Culture, History and Language, School of Culture, History & Language
Emailbethwyn.evansanu.eduau
Editor's introduction: Foundations of the new historical linguistics
Bowern, C. & Evans, B., 2015, The Routledge Handbook of Historical Linguistics. Claire Bowern and Bethwyn Evans (ed.). 1st ed. Abingdon, UK and New York, USA: Routledge Taylor & Francis Group, p. 1-42
editor 100%
linguistics 76%
language change 49%
phonology 44%
archaeology 41%
The Routledge Handbook of Historical Linguistics
Bowern, C. & Evans, B., 2015, 1st ed. Abingdon, UK and New York, USA: Routledge Taylor & Francis Group.
linguistics 100%
student 9%
Maternal History of Oceania from Complete mtDNA Genomes: Contrasting Ancient Diversity with Recent Homogenization Due to the Austronesian Expansion
Duggan, A. T., Evans, B., Friedlaender, F. R., Friedlaender, J. S., Koki, G., Merriwether, D. A., Kayser, M. & Stoneking, M., 2014, In: American Journal of Human Genetics. 94, 5, p. 721-733
Oceania 100%
Mitochondrial DNA 67%
Mothers 41%
Contact-Induced Change in Southern Bougainville
Evans, B. & Palmer, B., 2011, In: Oceanic Linguistics. 50, 2, p. 483-523
Contact Induced Change 100%
Papuan Languages 97%
Austronesian Languages 88%
contact 44%
Linguistic Contact 31%
Proto Oceanic *akin[i]: reconstructing change in progress
Evans, B., 2010, A journey through Austronesian and Papuan linguistic and cultural space: Papers in honour of Andrew Pawley. John Bowden, Nikolaus P Himmelmann & Malcolm Ross (ed.). 1st ed. Canberra, ACT: Pacific Linguistics, p. 179-196
Beyond pronouns: further evidence for South Bougainville
Evans, B., 2009, Discovering history through language: papers in honour of Malcolm Ross. Bethwyn Evans (ed.). 1st ed. Canberra Australia: Pacific Linguistics, p. 73-101
From Aspect/Mood Marker to Discourse Particle: Reconstructing Syntactic and Semantic Change
Evans, B., 2009, Current trends in diachronic semantics and pragmatics. Maj-Britt Modegaard Hansen and Jacqueline Visconti (ed.). 1st ed. Bingley, UK: Emerald Group Publishing Limited, p. 165-187
Ethnobotanical classification
Evans, B., 2008, The lexicon of Proto Oceanic: The culture and environment of ancestral oceanic society, Vol 3 Plants. Malcolm Ross, Andrew Pawley and Meredith Osmond (ed.). 1st ed. Canberra: Pacific Linguistics, p. 55-87
Evans, B., 2008, The lexicon of Proto Oceanic: The culture and environment of ancestral oceanic society, Vol 3 Plants. Malcolm Ross, Andrew Pawley and Meredith Osmond (ed.). 1st ed. Canberra: Pacific Linguistics, p. 85-127
Subject Agreement in Marovo: Diachronic Explanations of Synchronic Conditions
Evans, B., 2008, In: Oceanic Linguistics. 47, 2, p. 383-408
Diachrony 100%
Oceanic Languages 35%
Clause 21%
Particles 20%
Discourse Connectives 18%
The coconut palm
Ross, M. & Evans, B., 2008, The lexicon of Proto Oceanic: The culture and environment of ancestral oceanic society, Vol 3 Plants. Malcolm Ross, Andrew Pawley and Meredith Osmond (ed.). 1st ed. Canberra: Pacific Linguistics, p. 355-387
Third person plural as a morphological zero: object marking in Marovo
Evans, B., 2008, Morphology and Language History: In honour of Harold Koch. Claire Bowern, Bethwyn Evans & Luisa Miceli (ed.). 1st ed. Amsterdam, The Netherlands: John Benjamins Publishing Company, p. 281-298
Stop contrasts in languages of Arnhem Land: From the perspective of Jawoyn, Southern Arnhem land
Evans, B. & Merlan, F., 2004, In: Australian Journal of Linguistics. 24, 2, p. 185-224
A study of valency-changing devices in Proto Oceanic
Evans, B., 2003, 1st ed. Canberra: Pacific Linguistics. 354 p.
The history of Proto Oceanic *ma-
Evans, B. & Ross, M., 2001, In: Oceanic Linguistics. 40, 2, p. 269-290


text:
Az U–1224 tengeralattjárót a német haditengerészet rendelte a hamburgi Deutsche Werft AG-től 1941. augusztus 25-én. A hajó 1943. október 20-án állt szolgálatba. Később a Japán Birodalmi Haditengerészet állományába került.

Pályafutása
Az U–1224 1944. február 15-én lett a japán flotta része, számát RO 501-re változtatták. A tengeralattjárót három hónap múlva, május 13-án a Zöldfoki-szigetektől északnyugatra a USS Francis M. Robinson amerikai romboló mélységi bombákkal elsüllyesztette.

Kapitány

Jegyzetek

Források

IXC/40 típusú német tengeralattjárók

redpajama_set_name: RedPajamaWikipedia


text:
Solar system planets set. The Sun and planets in a row on universe stars and lines of gravity background. Elements of this image furnished by NASA.
Photo by: Elen11
Elen11
By: Paul M. Sutter
Spoiler alert: It's an optical illusion.
All the planets of the solar system orbit around the Sun in the same direction. From our vantage point on the Earth, this makes them appear to march across the sky from season to season in the same direction. While you can't discern this movement with your eyes in a single night, you can capture it if you pay close enough attention: one night the planet will be around a certain group of stars, and many months later it will be around a new clump of stellar friends.
These are the planets currently moving in retrograde:
Mercury from Sept. 10 to Oct. 2
Jupiter from July 28 to Nov. 23
Saturn June 4 to Oct. 23
Uranus Aug. 24 to Jan. 23
Neptune June 28 to Dec. 4
Pluto April 29 to Oct. 8
Eventually, the planets will return to the place they started. How long that takes depends on their distance from the Sun; planets with smaller orbits, like Mercury and Venus, will loop around our sky much faster than more distant worlds like Jupiter and Saturn.
But sometimes the planets appear to retrace their steps and move backward over the course of a few days or months, a phenomenon known as retrograde motion. If all the planets are moving in the same direction, then what gives?
The appearance of retrograde motion is due to our vantage point on the Earth. Just like all the other planets, we too are also orbiting around the Sun at our own speed. From our point of view, sometimes we "catch up" to another planet in its own orbit, making it appear as if it's moving backward relative to us.
Think of runners on a racetrack. From the point of view of the stands, everybody's running in the same direction. But from the point of view of one of the runners, their fellow racers may be moving away from them or coming closer to them, depending on their speeds and where on the track they happen to be.
You may have recently seen some articles talking about how six planets are currently in simultaneous retrograde. What does this mean for you, personally?
Nothing. It means nothing at all. One planet moving in retrograde doesn't mean anything either – it's literally just a planet moving in its orbit, doing the same thing it's been doing for the past four and a half billion years. Multiple planets moving in retrograde is just a random coincidence. If those runners on the racetrack were going at it for eons, circling around and around without end, these kinds of coincidences would be bound to happen.
If anyone had asked an astronomer from centuries ago, they would have been able to predict with extreme precision when this simultaneous retrograde would occur. In fact, you can fire up any free astronomy software and do the same thing yourself, finding out exactly when the next one will happen, and the next, and the next, for millennia to come.
Planets do what they're going to do, and what they've done for a very long time, and your personal life is in your hands, not in the stars above.
Watch Out! Amateur Astronomer Watches as Jupiter Gets Whacked
Jupiter is the OG best friend in the solar system. It finds all the tiny little comets and asteroids heading for the vulnerable inner planets and takes one for the team, chewing up the dangerous rocks in its thick atmosphere. It happened again just recently, and this time an amateur astronomer caught it in the act.
What Is a "Super Earth" and Why Do We Care?
Super Earths are super cool, and you should really know about them. In short, they are planets slightly bigger than the Earth (hence the name). And the cool part? They might be a home for life, and they're way easier to study than regular Earths.
All Hail Ganymede, King of the Moons
NASA's Juno probe, the supremely awesome Jupiter orbiter, recently captured some stunning images of Ganymede, the largest moon of Jupiter, during the orbiter's 34th trip around the giant.
Celebrate the I Heart Pluto Festival, An Ode to the Beloved Planet
Yes, we said "planet." Clyde Tombaugh discovered Pluto at Lowell Observatory in Flagstaff, Arizona during the month of February in 1930.Last year on the 90th Anniversary of the discovery, the observatory held its first I Heart Pluto Festival. This year you can be a part of the action.
How Common are Water Worlds in the Galaxy?
If Kevin Costner wanted to make a sequel, he's got plenty of opportunities. Water is by far the most common molecule in the universe. It's made of two parts hydrogen and one part oxygen. Hydrogen is element number 1 (both on the period table and in abundance), and has been hanging around since the first 15 minutes of the Big Bang. Oxygen is forged in the hearts of sun-like stars, and spreads around when those stars die and turn themselves inside out. And since sun-like stars are also very popular, oxygen gets quite a boost.
A Jupiter-Sized Exoplanet Orbiting Two Stars
One of my favorite things about exoplanet systems is just how weird they can get. It seems that every few months we are treated to another surprise. This time around, NASA's TESS observatory delivered a planet almost three times more massive than Jupiter orbiting around not one, but two stars. As an added bonus: that planet orbits its twin suns closer than the Earth does around the sun. Who wants to take a trip?
It's Time to Return to the Land of the Ice Giants
30 years--It's been over 30 years since the Voyager 2's historic flyby of Uranus and Neptune, the outermost and most mysterious planets in the solar system. It's time to go back.
Why Pluto Isn't a Planet, but (Maybe) Should Be
What, exactly, is a "planet"? For ancient astronomers it was pretty easy. When they stared up at the night sky, they saw a) the sun, b) the moon, c) a lot of fixed stars, d) a few wandering points of light. Those vagabonds were the planets. Indeed, our word planet comes from the Greek word for "wanderer".
NASA is Going Back to Venus. Here's Why You Should Care.
Recently NASA announced two brand-spanking new missions to our sister planet, Venus. This is the first time in over 40 years that Americans have led a mission to that enigmatic planet. What do they hope to find? Clues to our past…and answers to our future.
The First Exoplanet Found…Outside the Galaxy!
This new planet has had a pretty rough life.


According to experts, kidney cancer is one of the 10 most common forms of cancer in men and women alike. If you want to know some of the things that you may do to dodge this deadly disease, continue reading. Below we will discuss the risk factors for kidney cancer.
When risk factors are being talked about, things that are known to increase your likelihood of developing certain diseases are the ones involved. So in this case, risk factors for kidney cancer are those that can cause your odds of having cancer of the kidneys to increase.
The older you are, the higher your risk of developing kidney cancer.
It is said that kidney cancer is twice as common in males as in females.
Experts are not so sure why African Americans and Native Americans are at higher risk of kidney cancer.
Having a family history of kidney cancer is considered as a risk factor.
There are a number of inherited health problems that can increase kidney cancer risk.
Fret not — just because you have these risk factors for kidney cancer doesn't necessarily mean that you are going to end up with the disease sooner or later. Do take note that some people who have these risk factors do not develop kidney cancer. Also, some of those who are diagnosed with kidney cancer did not have these risk factors.
Generally speaking, your odds of having kidney cancer one day increases by up to 50% if you are a cigarette smoker. But it also depends of how heavy of a smoker you are — the more sticks you light up in a day, the higher your risk of having kidney cancer goes. The good news is quitting the habit can help in considerably lowering your risk of developing the deadly disease. About 10 years after ditching cigarette smoking, experts say, your risk of having kidney cancer becomes as low as that of someone who is a non-smoker.
It's common knowledge that obesity is bad for your overall health. Here's one more reason why being overweight is not a good thing: it's something that considerably increases your risk of having kidney cancer. According to studies, people who have extra pounds are more likely to develop kidney cancer than those who are within their ideal weights.
There are a couple of reasons why consuming foods that are unhealthy can increase your likelihood of having kidney cancer one day. First, eating lots of fatty and greasy foods introduces loads of toxins into your body, and that can increase the chance of cancer developing. Second, unhealthy eating habits can make it very easy for you to gain excess pounds and become overweight, which is an earlier-tackled risk factor for kidney cancer.
While painkillers may take away aches and pains, did you know that some of them can slightly increase your risk of having kidney cancer? According to doctors, some painkillers that may put a person at risk include non-steroidal anti-inflammatory drugs or NSAIDs. But they say that low doses or occasional intake is unlikely to be risky.
Actually, doctors say that high blood pressure is something that can be managed or reversed with a few simple dietary and lifestyle changes, and so it is included in this list of risk factors for kidney cancer that you can control. Besides, high blood pressure is linked not only to kidney cancer, but kidney disease in general.


text:
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text:
Home » Blog » Reclassification of Tramadol to a Schedule 1 narcotic under the Controlled Drugs and Substances Act
Reclassification of Tramadol to a Schedule 1 narcotic under the Controlled Drugs and Substances Act
The Canadian Department of Health has ordered changes to the Controlled Drug and Substance Act to include Tramadol and its salts. This is a necessary change in the public interest and our fight against the nation wide opioid crisis.
Unlike most opioid analgesics, tramadol is not controlled under the Controlled Drugs and Substances Act (CDSA) or regulated under the Narcotic Control Regulations (NCR). Controlling tramadol would strengthen Health Canada's (HC or the Department) oversight of legitimate activities with tramadol, and facilitate detection and prevention of diversion. It would also enable Canadian law enforcement agencies to take enforcement action against a broader range of unauthorized activities with tramadol, such as the seizure of unauthorized shipments of tramadol. This would help to mitigate the risk of problematic tramadol use emerging as a significant threat to the health and safety of Canadians.
There is now more evidence that high doses of tramadol could have potential for problematic use comparable to some opioids controlled under Schedule I to the CDSA, such as meperidine (marketed as Demerol®). Between 2006 and 2017, tramadol is suspected to have contributed to 71 adverse events related to problematic use, dependence or withdrawal reported in Canada, and to over 7 000 reported internationally. Problematic tramadol use is also reported to be a serious and growing public health concern for many countries.
Order Amending Schedule I to the Controlled Drugs and Substances Act (Tramadol)
1 Schedule I to the Controlled Drugs and Substances Act is amended by adding the following after item 26:
27 Tramadol (2-[(dimethylamino)methyl]-1-(3-methoxyphenyl)cyclohexanol), its salts, isomers and salts of isomers and the following derivatives of tramadol and the salts, isomers and salts of isomers of these derivatives:
(1) O -desmethyltramadol (3-[2[(dimethylamino)methyl]-1-hydroxycyclohexyl]-phenol)
(2) N,O -didesmethyltramadol (3-[1-hydroxy-2-[(methylamino)methyl]cyclohexyl]-phenol)
Coming into Force
2 This Order comes into force on the first anniversary of the day on which it is published in the Canada Gazette , April 30, 2020.
For more information: Regulatory Impact Analysis
Technology and the rural hospital pharmacy technician
Success Stories: Kyle McDonald


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Brea, Calif., September 18, 2018 – XDimensional Technologies® is pleased to announce that a new case study featuring its customer AssuredPartners has been published. The focus of the case study is on AssuredPartners' deployment of "ProgramSuite", a module to the Nexsure Insurance Processing Platform, for their AssuredPartners Scuba Programs.
AssuredPartners Scuba is a well-known and leading insurance Agency and MGA serving scuba instructors, dive shops, and dive boat owners and operators. The case study spotlights how Nexsure's ProgramSuite module has provided AssuredPartners with an automated solution for their demanding renewals related to the various programs that comprise their AssuredPartners Scuba operations. This automation of their renewal process eliminates errors that are inherent in manual processing, and reduces workload time and staffing requirements. This allows for an enhanced customer service experience, increased efficiency, and the ability to reallocate staff towards better revenue generating risks and opportunities.
Insurance agencies or brokerages that are interested in reading the full case study can visit http://www.nexsure.com/CaseStudyAssuredPartners.html.


I saw two large deer "running" a ridge line from my tree stand on opening morning, there was no opportunity as it was still too dark and I could just make out silhouettes. Two later days on Nov.18, 2013 I saw two large bucks cruising the same ridge line together, they both looked like they were on a mission; again from my vantage point, there was no shot opportunity. Got down out of the stand to do some recon. Found lots of good sign, a couple of places to set up depending on wind and decided to be there early the next morning.
The morning of the 19th found snow coming down horizontally, with the wind out of the NW. Due to wind direction I had to circle around the hill top on ground I'd never been. It was still dark as I settled in above the ridge line with the wind and snow in my face, and two huge trees to back up against to break up my outline.
About an hour after settling in, the snow stopped and the wind shifted out of the west and picked up little. I heard some tell-tale shuffling of leaves, then caught some movement off to my right. Through the vegetation I could tell it was a deer, the question was... buck or doe? The animal was taking it's time browsing it's way slowly along the ridge line approximately 50 yards to my right. It finally cleared the vegetation and could make out antlers, I flicked off the safety, and watched him make his way along the ridge... it seemed like eternity. The buck was directly below me on the ridge, he stopped broadside and looked uphill directly at/through me. He put his head down to browse again, the rifle came up, and down he went where he stood, heart shot.


Well, despite of being a bit athletic, right from my childhood, I had never thought of running in any long distance events other than just 400m or 800m events during the school days. But certainly, I wore my shoes for the first time for a long distance run in the Delhi Half Marathon 2006, and since then, I am in love with long distance running. I am not that fast, nor am I a big time runner nor an athlete, but the spirit of running is the key driving force.
The Half Marathon and Marathon are categorized as extreme sports. So, definitely there's a joy in facing the challenge to its best, and testing the physical limits of your body during such a long distance running event. I never ran just to complete the race, rather to live the race.
Well, the dream sprouted up in 2006, when I ran my first ever Half Marathon, to clash with the big guns more positively and with even high energy. But, the performance was a somewhat repeat telecast of 2006 in 2007. I already had struggled a lot during preparatory runs and suffered lots of cramps initially, but with time, got better and was in a position to run hard although I had a real shortage of time. The preparations of four months were all for the sake of Sunday, October 28th, 2007.
Conditions, yet again, were against me, as I reached the venue at 0800 hrs instead of 0745 hrs and had to suffer a trail of those 15 minutes throughout the competition. I started off in very haphazard way as I ran (unofficially) from Moti Bagh to reach the starting line. With so much important energy and time skipped from my belt, I had a thirsty and quite a dull start.
During the initial stages I was struggling my way through and at a point of time, it was clear that completing 21.097 km under 2 hrs would surely be a hard nut to crack.
Quite awkward to say, but it is a fact that the first half of the event was more difficult than the rest. The crowd was as usually the most supporting and inspiring with their loud applauds and cheers. Thanks to them, as they worked as hard as the refreshers did during the difficult times.
Running among the eminent personalities on the same track was a thought of pleasure and pride. As the time passed by, crossing the 7th and 8th km mark, I was totally into the situation now, and I was running at my best during that particular part. The crowd running along with us, was awesome and inspiring. In addition to it, those banners all over the place which said "If you think you cannot run, then stop thinking", were also inspiring. It was that line which kept the spirit alive for the whole time.
After 14 km, terrible pain and cramps in muscles, extreme thirst and total loss of energy were quite genuine signs. Soon, I had my first energy drink and quickly realized that I was running really short of time. It was an important time to take a decision quickly, either to run hard or just jog down the track, as muscles seem to be injured. I preferred jogging for a few minutes and then running for the final 4 km.
Then the big queues of chip refund and medal distribution added to that terrible condition. I quickly had the refreshments and made my way to collect the certificate. Eventually, there was some technical problem at that time, so we got our certificates a bit late (through courier).
I couldn't convert my figures to a big win, but my friend, the genius, Mr Rajiv Virat, sweeped yet again and retained the title of champion for the third time in a row in the Wheel Chair event. He truly deserves a loud round of applause.
Overall, just like the year before, the Vodafone Delhi Half Marathon, was nothing less than a festival, celebrated by not only Indians, but the world as whole. The feeling of being a part of such a prestigious international event is amazing and makes me feel proud.
My deep hearted thanks to all the organizing team members, especially "Procam" as without them, the event wouldn't have been such a grand success.
Secondly, I would like to express my sincere thanks to all the participant, who were the people on spotlight and made the event such a powerful one.
I hope to see a real "Marathon" also being introduced in Delhi, just like the "Standard Chartered Mumbai Marathon" as the response from the Capital city is awesome, and Delhities really want to run.
Next year I will definitely run the half marathon again to live the golden moments yet again and run for a noble cause and also for the grand reward of $25,000. Till then, don't dare put your shoes down, keep running!


Paul's Cloud Security and DevSecOps training course features hands-on labs in AWS, Azure and Google Cloud Platform, requiring numerous software tools and dependency applications to be installed on the student's laptop. So that students can spend lab time learning about cloud security and DevSecOps, rather than debugging software installation issues, a unique virtual training environment has been developed and built, with all needed applications pre-installed. Students can arrive at the course with any laptop or even an iPad and take the course.
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