Let's take a look at a class of signal-presence detectors that exploit cyclostationarity and in doing so illustrate the good things that can happen with CSP whenever cochannel interference is present, or noise models deviate from simple additive white Gaussian noise (AWGN). I'm referring to the cycle detectors, the first CSP algorithms I ever studied.
is white Gaussian noise. We'll look at some variations on these hypotheses later in the post.
, which is the weak-signal assumption common in signal surveillance and cognitive-radio settings.
Of course, this is the CSP Blog, so we'll be modeling the signals of interest as cyclostationary random processes, and by doing so we'll be able to obtain detectors that are noise- and interference-tolerant.
Throughout this post we are concerned with detecting signals on the basis of their gross statistical nature. This idea contrasts with another, often successful, approach that is based on exploiting some known segment of the waveform. For example, a signal may periodically transmit a known sequence (or one of a small number of known sequences) so that the intended receiver can estimate the propagation channel and compensate for it (equalization), or so that the receiver can perform low-cost reliable synchronization tasks. In this post, we assume we have no such "known-signal components" to detect. An unintended receiver can detect the signal of interest by performing matched filtering using these known components–so I'm saying that matched filtering is not applicable here.
on the basis of power or energy are called energy detectors or radiometers.
This detector does not take into account the distribution of the signal's energy in the time or frequency domains—it's just raw energy. It can be highly effective and has low computational cost, but it suffers greatly when the noise or the signal has time-varying behavior such as that caused by time-variant propagation channels, interference, or background noise.
along with the power from the signal-plus-noise interval, which degrades the statistic in proportion to the amount of oversampling.
is sometimes called the optimum radiometer.
I call this detector the suboptimal energy detector (SED).
The various detectors obtained through mathematical derivation using a cyclostationary (rather than stationary) signal model are collectively referred to as cycle detectors. These detectors can be derived in a variety of ways. Perhaps the most familiar is through likelihood analysis, where a likelihood function is maximized. See The Literature ([R7], [R65]) and My Papers () for derivations.
hypothesis. If we use the proper form of the spectral correlation function, but the synchronization/timing parameters used in creating the ideal functions differ from those associated with the observed signal, the complex-valued terms in the multicycle sum can destructively–rather than constructively–add. This degrades the detector performance.
We're in the unfortunate position of estimating timing parameters for a signal we have not yet detected.
So, the suboptimal version of the multicycle detector sums the magnitudes of the individual terms, rather than summing the complex-valued terms. This obviates the need for high-quality estimates of the synchronization parameters of the signal.
Finally, let's consider the delay-and-multiply detectors. These are detectors that use a simple delay-and-multiply device to generate a sine wave. Then the presence or absence of the sine wave is detected by examining the power in a small band of frequencies centered at the frequency of the generated sine wave (The Literature [R66], My Papers ).
. For example, DSSS signals can be detected by using a quadratic nonlinearity (delay-and-multiply, say) to generate a sine wave with frequency equal to the chipping rate. Such a detector is called a chip-rate detector. For most signal types of interest to us here on the CSP blog, a delay of zero is a good choice, as it tends to maximize the strength of the generated sine wave.
. So it is similar to our old friend the textbook rectangular-pulse BPSK signal, but with a more realistic pulse-shaping function.
dB. In this way, the "variable" results subsume a lot of different signal scenarios.
The interferer is also a square-root raised-cosine BPSK signal, but I allow both its bit rate and carrier frequency to vary from trial to trial to create various degrees of spectral overlap with the signal of interest. This is consistent with an interferer with unknown prior parameters.
Let's look at a few signal environment variations, and also introduce a pre-processing step called spectral whitening along the way.
In each simulation, I consider a wide range of inband signal-to-noise ratios (SNRs). By inband I mean that the SNR is the ratio of the signal power to the power of the noise in the signal bandwidth. This is typically a more meaningful SNR for CSP algorithms than the total SNR, which is simply the signal power divided by the noise power in the sampling bandwidth (the noise power in the analysis band).
, but in my experience such formulas are only possible in highly simplified problems, and must be adjusted using measurement. I suppose one could call them textbook thresholds.
). The bits that drive the BPSK modulator are chosen independently each trial as is the noise sequence.
Here I am just showing three detectors. The first is the optimal energy detector (OED) described above; its statistics are shown in red. The second is the incoherent multicycle detector (IMCD), where the "incoherent" word just means that we add the magnitudes of the terms in the optimal MCD. The final detector shown here is the incoherent suboptimal multicycle detector (ISMD), which is what we described above as simply the suboptimal multicycle detector.
anywhere in the gap between the two curves.
and the ISMD for cycle frequencies that are not exhibited by the data are the worst-performing.
for the false-CF ISMD approaches one. So we are reliably detecting a signal that is not actually present!
. This just means that the variance of the measurement is affected by the measurement parameters as well as how much non-signal energy is present. We can always overcome high noise by increasing the resolution product.
which follows from elementary random-process theory for the spectral densities of the input and output of a linear time-invariant system.
Now we see that the performance ordering has changed, and that the false-CF ISMD does not tell us a non-existent signal is present as the actual signal's SNR increases. Spectral whitening is also useful when inband narrowband interference is present, for much the same reasons as we've outlined above.
The spectral whitening is not perfect. The OED begins to detect the signal as the SNR gets large due to this imperfection.
Finally, we note that the use of spectral whitening as a data pre-processing step means that the spectral correlation function estimates used in the various detectors are actually spectral coherence estimates. Coherence strikes again!
Notice that the two signals cannot be distinguished in the PSD. Relative to the spectral correlation plot for BPSK alone, we see the additional non-conjugate feature that corresponds to the QPSK interferer.
dB, so the interferer power ranges from a tenth of the BPSK power to ten times the BPSK power. The interferer's center frequency is restricted to lie in an interval to the right of the BPSK center frequency. Finally, the interferer bandwidth ranges from one half the BPSK bandwidth to twice the BPSK bandwidth.
So here there is no need for spectral whitening, because the false-CF detectors will not generally show detection of a false signal. However, spectral whitening works out well in this kind of case, as we will see next.
So, with or without spectral whitening, when the signal environment is difficult–contains variable cochannel interference and/or variable noise–the cycle detectors are vastly superior to energy detectors.
MHz (the chip rate). There are no detected significant conjugate cycle frequencies for this data. Notice the frequency-selective channel implied by the WCDMA PSD, which is normally flat across its bandwidth. The observed channel fluctuates over time.
So in this benign environment, energy detection is far superior to CSP detection, but the cycle detectors definitely work. We again observe the false-CF detection problem.
kHz are rather strongly affected by the whitening relative to the other SDs and the MDs. I don't yet have an explanation for that, but it is clear that the real-world (non textbook) signals are much more complicated than the textbook signals, and application of CSP to the non-textbook signals requires care.
Let me, and the CSP Blog readers, know if you've had good or bad experiences with cycle detectors by leaving a comment. And, as always, I would appreciate comments that point out any errors in the post.
For equation(11), the false alarm probability should be P[Y>=\mu|H0], right?
Yes! Thanks again for finding a typo/error. It is fixed now. Please continue! Find them all!
Is there a conjugate SCF version of Equation (9)? I have not been able to find a good definition in the literature, including . For the non-conjugate SCF, Equation (9) can be normalize as shown in Eqn. (34) in , which gives you values between [0,1]. What is the equivalent for the conjugate SCF?
Is there a conjugate SCF version of Equation (9)?
Yes, just replace the non-conjugate SCF with the conjugate SCF.
For the non-conjugate SCF, Equation (9) can be normalize as shown in Eqn. (34) in , which gives you values between [0,1]. What is the equivalent for the conjugate SCF?
The conjugate coherence is presented in the coherence post at Equation (14). I believe you can simply replace the (non-conjugate) SCF in (34) with the conjugate SCF, and proceed with a parallel development, substituting the magnitude-squared conjugate coherence for the magnitude-squared non-conjugate coherence in (35).
If the idea is to figure out which cycle frequencies to include in some multi-cycle detector, or which single cycle-frequency to use in a single-cycle detector (for a signal that exhibits several cycle frequencies), you might just convert your complex-valued signal to a real-valued one (analytically) and then use the formulas in  without modification.
Thanks Chad, that definitely helps. I'll work through the derivation and see if that gets me a properly scaled ([0,1]) conjugate version.
I realized software model (matlab code) of the implementation of spectral correlation for the detection signals and estimation of its parameters.
As a result of the model some questions arised which in my opinion are in contradiction with some of your statements in your blog.
In my opinion, if we know central frequency of the filter and which bandwidth use for this filter, we already know enough information about the signal. Then why do we need to imply spectral correlation for the estimation same information via cyclic frequency (central frequency and bandwidth)?
2. After the Cyclic Spectrum Estimation result of the impulse response of the filter prevails over result of the signal. For example, cycle spectrum of the filtered noise (figure 4) is almost the same as cycle spectrum of filtered noise+signal (figure 3) that is, the shape of the Cyclic Spectrum is determined only by the filter.
How can I distinguish a signal case and signal+noise case after pre-filtering?
3. One more problem is the inconsistency of the results of the simple nonlinear transformation with the results of the spectral correlation transformation.
From this it follows that results of the simple nonlinear transformation is "equal" to the results of the spectral correlation transformation.
Though, the results of my modeling give contradictionary conclusions. Amplitude of a sine wave that can be generated by a quadratic nonlinearity at low SNR is enough for the detection of the cyclostationary signals. However, cycle spectrum of a pure noise and cycle spectrum of signal+noise do not differ. Thus, it is impossible to carry out the detection using cycle spectrum (figure 3, figure 4), but possible to carry out the detection using a quadratic nonlinearity (figure 5).
Concequently, is a cyclostationary spectrums for the detection of the signals is not better than usual nonlinear transformation and detection of the cycle frequencies works better with nonlinear transformation?
EsNo = EbNo*k; % Convert EbNo to EsNo.
Thanks for your detailed comment, Serg, and for reading the CSP Blog.
Although you placed your comment in the Comments section of "The Cycle Detectors," this quote of mine is from a post called "Automatic Spectral Segmentation." Cycle detectors are non-blind detectors, since they require prior knowledge of one or more cycle frequencies. The quote above is in the context of blind detection and signal characterization.
I'm not quite sure I understand your question, but the idea of the cycle detectors is presence detection: is the signal present or not? So we can have prior information about where the signal might reside in frequency (carrier-frequency knowledge) and/or its bandwidth (symbol-rate knowledge) and still not know whether it is actually present at any given instant of time. Therefore we require a detector.
I couldn't run your MATLAB code directly because my (2018) version did not want to run modem.qammod (deprecated and removed), but I substituted a QPSK signal of my own making. I see that you wanted to process a QPSK signal with square-root raised-cosine pulses with roll-off of 0.3 and symbol rate of 1/4, so I generated that kind of signal using my own tools. That's when I saw what was confusing you: The spectral correlation function for the case of signal+noise showed the same cycle frequencies as the spectral correlation function for noise alone, namely harmonics of the symbol rate (0.25, 0.5, …).
That is clearly an error, and the error is in the SSCA code your were using, which is a MATLAB-provided function called commP25ssca.m. That function is in error. It produces spurious cycle frequencies that are related to the number of strips (the reciprocal of the input parameter df). Please see my new post on this topic.
The quote is from a third post called The Spectral Correlation Function. It is true, and it is a statement about cycle frequencies, not comparisons between different complicated nonlinear transformations.
This is a consequence of the misleading nature of the output of commP25ssca.m. Unfortunately for you, the exact locations of the spurious cycle frequencies are the cycle frequencies of your signal, so it looked to you like the signal's cycle frequencies were detected whether or not the signal was present! In other words, you chose a symbol rate of , and the choice of df = led to spurious cycle frequencies of harmonics of . Try setting your symbol rate to and repeating your measurements.
Overall, simple nonlinear transformations (such as squarers) can be quite effective as CSP detectors, but the cycle detectors offer a bit better performance, and they all work fine provided the CSP functions are correctly implemented.
Hi Chad , thank you very much for your detailed answer.
As I understand it, the main reason for the problems in the simulation was the error in the implementation of the commP25ssca function and in order to move on, this error should be eliminated.
I didn't understand the algorithm deeply, because at first I just wanted to see its capabilities, how it works and in order to eliminate this error, it is necessary to understand the algorithm precisely.


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John Hawkins of Right Wing News, wants to know, and so do I, how Obama would be handled in a Mainstream Media Debate….if he were Republican. OMG, how cool would that be ! Below The Looking Spoon's graphic is a peek at the questions….
1) Numerous Mexican citizens and an American citizen have been killed with weapons knowingly provided to criminals by our own government during Operation Fast and Furious. If Eric Holder was aware that was going on, do you think he should step down as Attorney General? Were you aware that was going on and if so, shouldn't you resign?
2) In 2010 you said Solyndra, which gave your campaign a lot of money, was "leading the way toward a brighter and more prosperous future." Today, Solyndra is bankrupt and the taxpayers lost $500 million on loans that your administration was well aware might never be paid off when you made them. What do you say to people who say this is evidence of corruption in your administration?
3) Unions invested a lot of time and money in helping to get you elected. In return, they gained majority control of Chrysler, the taxpayers lost 14 billion dollars on General Motors, and General Motors received a special 45 billion dollar tax break. What do you say to people who view this as corruption on a scale never before seen in American history?
12 more here. Oh, and it gets better 🙂 Good luck Obama!
What I worry about is whoever the GOP runs against Obama, goes into McCain mode aka Taking a Dive. Johnny boy never went after Barry's friends, or his past. I still think that the GOP and DNC are playing for the same team!
It's typical Chicago style corruption that seems to not concern most Americans because it does not affect them, or so they think. Stil, Obama continues with his 45% approval rating. Good article.


Reitano walked; Gonzalez advanced to second.
Martin doubled to center field, 2 RBI; Reitano scored; Gonzalez scored.
Edwards to rf for Reitano.
Szczerba singled to left center.
Vavra homered to left center, 2 RBI; Szczerba scored.
Fuller singled up the middle; Davis advanced to third.
Eddinger walked; Fuller advanced to second.
Szczerba singled to left field, 2 RBI; Eddinger advanced to second; Fuller scored; Davis scored.
Bernard to p for Whitley.
Withrow to dh for Correnti.
Richards to rf for Magno.
Downum to lf for Davis.
Harvey pinch ran for Whitley.
Harvey advanced to second on a passed ball.
Carter to p for Johnson.
Orrison homered to left field, 2 RBI; Britt scored.
Gouthro to dh for Martin.
Manning doubled to right center.
Vavra singled up the middle.
Dennis singled to right field; Vavra advanced to third.
Downum struck out swinging; Dennis advanced to second on a wild pitch; Vavra scored on a wild pitch.
Richards reached on a throwing error by 3b, advanced to second; Dennis advanced to third, scored on a fielding error by 1b, unearned.
Fuller singled to pitcher; Richards advanced to third.


text:
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Molecular Biology (sustainability) PhD Projects, Programs & Scholarships
We have 6 Molecular Biology (sustainability) PhD Projects, Programs & Scholarships
Keywords: "sustainability" ×
Subject: Molecular Biology×
Transmission of HEV: risk from the environment and waste water in Scotland
School of Computing, Engineering & the Built Environment
Dr C Hunter, Dr C Crossan, Prof L Scobie
Applications accepted all year round
PhD Research Project
PhD Research Projects are advertised opportunities to examine a pre-defined topic or answer a stated research question. Some projects may also provide scope for you to propose your own ideas and approaches.
Self-Funded PhD Students Only
This project does not have funding attached. You will need to have your own means of paying fees and living costs and / or seek separate funding from student finance, charities or trusts.
SCEBE-19-027. In Scotland, the number of Hepatitis E virus (HEV) infections are increasing yearly, since 2011 laboratory confirmed cases have increased 15-fold.
The Institute for Agri-Food Research and Innovation (IAFRI) - 3 year PhD Studentships
Institute of Agri-Food Research and Innovation (IAFRI)
PhD Opportunities highlight some of the specific PhD projects, programmes or other information currently available from a university.
The Institute of Agri-Food Research and Innovation (IAFRI) is a joint venture between Newcastle University & Fera Science Ltd.
Exploring the genome architecture of plastic-degrading bacteria
Centre for Enzyme Innovation
Dr S Robson, Dr J.E.M Watts
Application Deadline: 7 February 2020
Funded PhD Project (European/UK Students Only)
This project has funding attached for UK and EU students, though the amount may depend on your nationality. Non-EU students may still be able to apply for the project provided they can find separate funding. You should check the project and department details for more information.
Applications are invited for a fully-funded four year PhD studentship to commence in October 2020. The PhD will be based at the University's Centre for Enzyme Innovation (CEI), and will be supervised by Dr Sam Robson and Dr Joy Watts.
PhD in cellular and structural biology - Elucidating infection at the plant-microbe interphase to define targets for crop breeding
Department of Animal and Plant Sciences
Dr C Voigt
Achieving food security is one of the most important global challenges. Crop production and yield has been increasingly threatened by plant pathogens in a rapidly changing environment.
Finding the right fungal friends: determining how plant defences against against insect herbivores are impacted by different mycorrhizal fungal communities.
Dr A Frew
Competition Funded PhD Project (Students Worldwide)
This project is in competition for funding with other projects. Usually the project which receives the best applicant will be successful. Unsuccessful projects may still go ahead as self-funded opportunities. Applications for the project are welcome from all suitably qualified candidates, but potential funding may be restricted to a limited set of nationalities. You should check the project and department details for more information.
Background. Almost all plants on the planet are attacked by at least one, if not many, insect herbivores. Many of these insects have become pests of crops and they impact crop productivity.
Research opportunities in the Department of Archaeology
Humanities Research Programme
Humanities Research Programmes present a range of research opportunities, shaped by a university's particular expertise, facilities and resources. You will usually identify a suitable topic for your PhD and propose your own project. Additional training and development opportunities may also be offered as part of your programme.
Awaiting Funding Decision/Possible External Funding
This programme is waiting to confirm funding from a university or external source. This may depend on attracting suitable students and applications are welcome. Please see the programme details for more information.
The Department of Archaeology at York is a vibrant research community and a centre of excellent research-led teaching.

redpajama_set_name: RedPajamaCommonCrawl


text:
Biden inauguration: Katy's anthem, Bernie's mittens and other offbeat…
FIFA: Breakaway league players banned from WC
Josh Hartnett Confirms He and Tamsin Egerton Welcomed Baby…
Farmers and forest guards in Ondo stage protest in…
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Cannabis company Cronos Group reports revenue grew in third quarter
by CTV News November 12, 2019 0216
TORONTO – Cannabis company Cronos Group Inc. reported a profit in its third quarter, boosted by a large gain in derivative liabilities, as revenue grew to $12.7 million.
The company says its net profit amounted to $788 million or 53 cents per diluted share for the quarter ended Sept. 30. That compared with a loss of $7.3 million or four cents per share in the same quarter last year.
Cronos says its adjusted earnings before interest, taxes, depreciation and amoritization amounted to a loss of $23.9 million in its most recent quarter compared with a loss of $3.2 million a year ago.
Revenue was up from $3.8 million in the same quarter last year and up from $10.2 million in the second quarter of 2019.
Analysts had expected Cronos to report $14.1 million in revenue for its third quarter, according to financial markets data firm Refinitiv.
Cronos says it sold 3,142 kilograms of cannabis in Canada in the quarter, up from 514 kilograms in the third quarter last year and 1,584 kilograms in the second quarter of 2019.
https://www.ctvnews.ca/business/cannabis-company-cronos-group-reports-revenue-grew-in-third-quarter-1.4681334
Liverpool star Joe Gomez spotted with long scratch under his eye after his bust-up with Raheem Sterling (Photos)
South Korean river turns red after being polluted with pigs' blood
These are the meat plants in Canada affected by the coronavirus outbreak
CTV News April 29, 2020
U.S. seeks to blacklist Chinese artificial intelligence firms
CTV News October 8, 2019
Market mood turns sour over virus after temporary relief
CTV News March 2, 2020
CTV News January 21, 2021


text:
Expert Audits
Q&A with Jonathan Avila, Chief Accessibility Officer
This installment of our Accessibility Activists column is an interview with Jonathan Avila, Chief Accessibility Officer for SSB Bart Group. Avila is also a participant in the WCAG Working Group, and the mobile accessibility task force at the WAI.
When did you first get started in accessibility?
I worked at a summer family vacation retreat/camp for adults who were blind/visually impaired in New York. I started teaching campers Windows 95, MS Office, and the Internet with JAWS 3.2. Back then you had to reformat the page into one column before reading each page with JAWS. There was no virtual/browser cursor yet. Most blind people I worked with hadn't really had a chance to use the Internet or even explore Windows, and they were just amazed to find out what was possible at that time. Seeing the benefits that assistive technology could bring was amazing.
What project are you most proud of from your work in accessibility?
I had many projects and I can't limit it to one. The most important include but are not limited to:
Creating JAWS scripts for many customers – most of whom worked at call centers. I created JAWS scripts that allowed people to be efficient and often out-perform their sighted peers by creating shortcuts and streamlining the process of taking calls. Many of my scripts ran for years and across multiple versions of systems and JAWS without breaking. I came from a programming background, and thus when I joined this field, I wanted to programmatically solve these issues in a robust way that relied on using MSAA, the document object model, or COM rather than what my predecessors had done, which was to write macros based on screen coordinates, specific colors, or other techniques that were fragile. I felt like myself and others like Doug Lee helped to transform the scripting industry with modern programming practices. Our predecessors were well intentioned people, most of whom came from a rehab background, but who were not programmers.
Codifying the knowledge I had learned into best practices in SSB Bart Group\'s AMP (Accessibility Management Platform). When SSB and BART Group combined in 2005, I was given the chance to take the knowledge in my head related to accessibility of software and web, and to put it into writing which is now the AMP best practice library. Other people did and have contributed significant material – but much of the content was written based on what I had learned from working since the late 1990s. The AMP best practice library pre-dated much of WCAG notes and techniques that we now have, so it was a great resource when few other resources were available. It remains a great resource and the library goes beyond web content that is addressed by WCAG notes.
Implementing accessibility into frameworks. I was involved in writing accessibility implementations for frameworks such as Adobe's Flex framework. Whenever we have the chance to write accessibility into a framework, the impact is so much more significant for accessibility support because the support is there automatically in standard controls without requiring developers to consider adding it in.
What is your current area of focus in the accessibility field?
I'm actually involved in many areas. For example, I'm actively involved in the WCAG WG and the mobile accessibility task force at the WAI. I've been involved in the creation of mobile standards and guidelines for accessibility within several organizations. I actively commented on the Section 508 refresh and have been planning updates in AMP for the refreshed standards. At the same time I have been refining our automated tests for web content and working on automatic test criteria for native mobile content.
What accessibility barrier would you like technology to solve?
There are many barriers that technology can assist to dissolve. I could name many things like social interaction, gaming, way finding, employment, education, and transportation. One large challenge is that technology and frameworks are created with accessibility as an afterthought. I'd like to see technology, frameworks, and pattern libraries that are designed with accessibility in mind from the beginning. If this were the case, technology could readily be the solution to other barriers as soon as it's available.
I'd like to see technology, frameworks, and pattern libraries that are designed with accessibility in mind from the beginning.
Mirabai Knight
Realtime Captioner
Beth Rosenberg
Tech Kids Unlimited
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text:
Q: Emacs+ESS idle time print How can I make Emacs execute something like
(ess-eval-linewise "cat(date(), '\\n')" t nil nil nil)

each time ess is running and Emacs has been idle for a certain amount of time and somewhere around the moment it stops being idle?

A: I have no experience with ess but you can use run-with-idle-timer to run a command when Emacs has been idle for a given amount of time.
You can wrap the line above in a function and give it to this function and have it execute everytime Emacs is idle for the given amount of time.
For details on using the function, take a look at the wiki.

redpajama_set_name: RedPajamaStackExchange


text:
Q: Create Groups on XMPP server I am making a chat application using xmpp/openfire and I want to make groups on the server, which anyone on the server can join.
Anyone please help me in the same.

A: Like this way you can create group in Xmpp server
            SmackAndroid.init(SelectMembers.this);
            MultiUserChat muc = new MultiUserChat(xconnection, GroupName
                    + "@conference.fonechat.in");
            muc.create(my_number);
            setConfig(muc);
            muc = new MultiUserChat(xconnection, GroupName + "@conference.serverid");
            muc.join(my_number);
            for (int i = 0; i < name.size(); i++) {
                muc.invite(phone.get(i).toString() + "@fonechat.in",
                        "Meet me in this excellent room");

//SetConfig function
    private void setConfig(MultiUserChat multiUserChat) {

    try {
        Form form = multiUserChat.getConfigurationForm();
        Form submitForm = form.createAnswerForm();
        for (Iterator<FormField> fields = submitForm.getFields(); fields
                .hasNext();) {
            FormField field = (FormField) fields.next();
            if (!FormField.TYPE_HIDDEN.equals(field.getType())
                    && field.getVariable() != null) {
                submitForm.setDefaultAnswer(field.getVariable());
            }
        }
        submitForm.setAnswer("muc#roomconfig_publicroom", true);
        submitForm.setAnswer("muc#roomconfig_persistentroom", true);
        multiUserChat.sendConfigurationForm(submitForm);
    } catch (Exception e) {
        e.printStackTrace();
    }

}

A: Try creating a persistent Multi-User Chat (MUC: http://xmpp.org/extensions/xep-0045.html) room for each group.  You'll be able to send a message to everyone in the group, which is terribly useful.

A: Try QuickBlox.com they have a sample program too..


text:
Q: Web scraped string can't be called outside the for loop     from bs4 import BeautifulSoup as soup
    import pandas as pd
    import requests

    url = 'http://ips.alliance-pipeline.com/Ips/MainPage.aspx?siteCd=ALLUSA-IPS&contentSysCd=USA-OP-AVAIL-BY-DAY&tvPath=55/112/56'
    response = requets.get(url)
    html = soup(response.context, 'html.parser')

    loc = html.find_all('td', class_= 'ig162a1706')
    tsq = html.find_all('td', class_ = 'ig162a170e')

    for r in html.find_all('td', class_ = 'ig162a1706'):
        loc = r.text
        print(loc)

    for a in html.find_all('td', class_ = 'ig162a170e'):
        tsq = a.text
        print(tsq)

output:
ALLIANCE/ANR
ALLIANCE/ROSHOLT
AUX SABLE
BANTRY
BORDER USA
GUARDIAN
HANKINSON
HORIZON
LYLE
MIDWESTERN GAS TRANSMISSION
MILNOR
NATURAL GAS PIPELINE COMPANY OF AMERICA
NICOR/MORRIS
PEOPLES/ELWOOD
TIOGA
VECTOR PIPELINE
729,192
2,600
245,000
141,021
1,402,129
2,158
9,030
0
8,000
0
350
114,618
236,385
34,426
111,235
152,612

Error:
    print(loc)

output:
'VECTOR PIPELINE'

Hi all, basically whenever I do print(loc) outside of the for loop, it only prints 'vector pipeline' and I'm confused as to why this is happening. Shouldn't it print the entire loop even when I execute the command outside instead of just 'vector pipeline'? Don't know what I'm doing wrong. The output is a string.

A: You can use builtin method zip() and "tie" information about name and TSQ together.
For example:
import requests
from bs4 import BeautifulSoup

url = 'http://ips.alliance-pipeline.com/Ips/MainPage.aspx?siteCd=ALLUSA-IPS&contentSysCd=USA-OP-AVAIL-BY-DAY&tvPath=55/112/56'
soup = BeautifulSoup(requests.get(url).content, 'html.parser')

col1 = soup.select('td.ig162a1706')
col2 = soup.select('td.ig162a170e')

all_data = {}
for name, tsq in zip(col1, col2):
    all_data[name.text] = tsq.text

# pretty print to screen:
from pprint import pprint
pprint(all_data)

Prints:
{'ALLIANCE/ANR': '719,055',
 'ALLIANCE/ROSHOLT': '2,600',
 'AUX SABLE': '245,000',
 'BANTRY': '141,021',
 'BORDER USA': '1,402,129',
 'GUARDIAN': '0',
 'HANKINSON': '9,030',
 'HORIZON': '0',
 'LYLE': '8,000',
 'MIDWESTERN GAS TRANSMISSION': '0',
 'MILNOR': '350',
 'NATURAL GAS PIPELINE COMPANY OF AMERICA': '114,618',
 'NICOR/MORRIS': '236,949',
 'PEOPLES/ELWOOD': '34,426',
 'TIOGA': '111,235',
 'VECTOR PIPELINE': '173,570'}

Then you can print information about locations separately, for example:
# print information only for 'TIOGA'
print(all_data['TIOGA'])

Prints:
111,235


A VW 1200 owned by the first Swedish owner until 2014, equipped with the searched for "ragtop" with an original mileage of only 39.439. The last 5 years collection piece of a recently discontinued Swedish Volkswagen Museum.
Incomparable condition of the chassis, bodywork and floor panels, typical for the Scandinavian models, with a thickly applied anti-rust / insulation coating. With the exception of the lower part of the right door and the right front wing completely in the factory paint with only minimal traces of use and perfect gloss.
The fabric interior, the rubber floor mats, the side carpets as well as the original folding roof are in a unique preserved condition. Periodic options such as the removable Blaupunkt Radio, the Marchal spotlights placed crosswise on the bumper rosettes give this De Luxe Beetle extra cachet.


text:
Word of smaller Nintendo E3 press conferences has me worried
When it comes to the home console offerings that Nintendo has provided over the last eight years, I've been extremely disappointed. So to see them announce that they'll be holding smaller E3 press conferences this year is a little worrisome.
Nintendo is planning to mix things up with this year's E3 conferences.
I recall the very moment during the Tokyo Game Show press conference in September 2005 when Satoru Iwata unveiled the prototype for what I saw to be an unsightly DVD remote. That little remote along with the Wii console ended up taking the world by storm while I defiantly opted to purchase The Legend of Zelda: Twilight Princess for my Gamecube instead of the new hotness.
My taste never shifted. Super Smash Brothers: Brawl, couldn't sway me towards they're latest console, neither could 2011's Skyward Sword. And as one generation of Nintendo home consoles came to an end I found myself still skeptical of the unimpressive Wii U that they had in the pipeline.
To be disappointed in something, you must first have some excitement or anticipation built-up within you. Like many gamers my age, some of my fondest, early memories of video games came from playing on Nintendo hardware in the 90's. As a result, I don't wake up in the morning intent on detesting everything that comes out of a Nintendo spokesperson's mouth. Quite the opposite, actually.
After the flop that the Wii U has become and yesterday's E3 announcement, Nintendo has me scared
I'll always look forward to the possibility of good things from them, but after the flop that the Wii U has become and yesterday's E3 announcement, Nintendo has me scared. They're still a gigantic corporation that is turning a profit, but their decision to back out of a big E3 presser this year signifies that, at least for the time being, they're influence is likely diminishing.
I hope that this June, through Nintendo's private and streamed conferences, we will get to see a wealth of exciting new software to look forward too, but as it stands right now, as unlikely as it may seem, the prospect of a world without Nintendo home-hardware seems like it's inching ever closer to reality.
← Outland Games: a pretty shallow, blood-sport take on the endless runner formula
Looking forward to the social features of the next generation consoles →


My partner and I really loved this! I gave it four stars because it�s super messy and for the heat sensation part you need to use up quite a bit. If you�re more focused on getting oil for a message and the massage is the highlight for you then this is probably perfect.


Learn when and how cloud disaster recovery fits into the data protection strategy for small to midsized businesses in this expert response from Greg Schulz, founder and analyst with StorageIO Group.
When is it a good idea to use cloud disaster recovery in my SMB environment?
Cloud disaster recovery or managed service providers (MSPs) for disaster recovery are a great fit for small- to medium-sized business (SMB) and small office/home office (SOHO) environments as a complete solution, or in conjunction with other techniques and technologies. In fact, SMBs and SOHOs are the current market sweet spot for cloud and MSP data protection, disaster recovery and data backup.
A caveat to cloud disaster recovery is network bandwidth and budget -- in terms of how much data can you protect and in what timeframe. The trick is to establish different recovery time objectives (RTOs) and recovery point objectives (RPOs) based on a business impact analysis (BIA) for different levels of data. For example, on my own systems a regular disk-to-disk (D2D) backup is performed to a local network-attached storage (NAS) device, along with periodic backups to removable media that is sent offsite to a vault. In addition, important and time-sensitive data is sent via network connection to my cloud service provider, including when I'm travelling on business. The idea is that I have a full copy of data in multiple locations using bulk data protection techniques while leveraging the cloud for smaller amounts of time-sensitive data.
Bottom line: If you are an SOHO or SMB, look at how cloud data protection services can either complement or replace how you're doing backup, data protection, disaster recovery and even data archiving. But make sure that your data protection via cloud is not a single point of failure.


text:
NEW: Auditor General's Report Reveals COVID Deaths in Long-Term Care Facilities 30% Higher than Reported by Whitmer Administration
Lansing, Mich., January 13, 2022 – In April 2020, Gretchen Whitmer signed an ill-fated executive order that required nursing homes to dedicate special units in their facilities for patients who tested positive for COVID-19. The policy unilaterally ordered COVID-positive individuals into a condensed facility housing seniors and other vulnerable populations. Whitmer's decision resulted in deadly consequences, yet the Governor inexplicably defended her policy and vetoed legislation that would have ended it, despite data showing nearly 2,000 patients and staff died in nursing homes only two months after its adoption.
In early 2021, independent investigations began looking into the undercounting of nursing home deaths and found discrepancies in the numbers reported by the Whitmer administration. Two months before that report, Dana Nessel declined to investigate Whitmer's nursing home policies and brushed off the concerns as political attacks. Last night, after more than a year of inquiries into nursing homes deaths, it appears the Auditor General's report on Governor Whitmer's nursing home policies will reveal that the Whitmer administration under-recorded COVID deaths in long-term care facilities by 30 percent.
"This report is the beginning of closure and justice for those victimized by Gretchen Whitmer's lethal nursing home policies," said Eric Ventimiglia, Executive Director for Michigan Rising Action. Ventimiglia continued, "Under-counting COVID deaths in long-term care facilities by 30 percent is not an accounting error or an honest mistake. Governor Whitmer's deadly nursing home policy resulted in thousands of Michiganders needlessly losing their lives, and she should be held accountable for attempting to cover it up."


As I've previously mentioned, early intervention is crucial to a quick, sustained, and full recovery from anorexia and other eating disorders. The UK charity B-eat notes that eating disorders need to be halted in the early stages before they become entrenched, and there is plenty of evidence that delaying treatment damages recovery. Anorexia has the highest mortality rate of any mental illness, and still people in this country are turned away from mental health services because they are not 'ill enough'.
Also according to B-eat, 41% of sufferers wait for more than 6 months for treatment, and 32% of sufferers feel that they are discriminated against at work because of their eating disorder. Eating disorders cost the economy a total of £16.8 billion per year, and yet only 15p is invested in relevant research per each adult affected by an eating disorder, compared to £1,571 per adult affected by cancer.
It is essential to overcome these barriers to early intervention by training professionals who are best placed to spot early warning signs, such as teachers, to recognise eating disorders. Professionals, sufferers, and carers need to know where and how to access help and, in turn, the specialist services need to be better funded and resourced so that help and effective treatment is offered quickly and for long enough.
If I can help with any of the above, please do not hesitate to contact me.
A great illustration of the same situation being viewed in two very different ways. I wonder who was the most successful salesman.
Perfectionism has long been associated with individuals who fall prey to anorexia nervosa. Whilst I recognise that there will be exceptions to this 'rule', I do recognise perfectionistic traits within myself. Throughout my entire life I have been guilty of setting myself unrealistically demanding goals, and tend to regard failure to achieve them as unacceptable and a sign of personal worthlessness. I struggle to do anything just for the pleasure of it, and will completely give up on things that I perceive myself to be doing badly. There is no middle ground – I am either good at something and throw myself into it, or I think I'm rubbish at it and don't do it at all.
I received this message whilst on holiday, so I had plenty of time to think about things. Giving up music all those years ago hadn't really been given much thought – I'd just done it. I didn't just give up playing either, I gave up everything to do with music – even listening to it. I was aware that I had done a similar thing with running. Having been a pretty decent runner before falling pregnant with my second child, I was struggling to get back to a level I found acceptable and had been avoiding races for 4 years. As I looked back over my life I could see a similar pattern emerging throughout. It was a wake up call.
Luckily, I had only given up racing and hadn't given up running altogether. I ran every day whilst on holiday, and I enjoyed every run. In the last couple of months I have completed 2 half marathons and enjoyed doing so, and tomorrow I am doing another. I have set myself some running goals – hopefully not too high, and I almost bought a cornet last week. Watch this space!
* Dave Mackin plays with The Beer Pigs and their album, which includes the song 'Broken Musicians', is due for release in June 2017.


Starting Christmas traditions is a fun and meaningful thing to do for your family. Many traditions are handed down from generations past, but you can also create new traditions for your family.
Many people look to their religious background when thinking of Christmas traditions. Going to a Christmas Eve mass, or attending a play about "The Night Before Christmas" are just a couple of ways you can include religion. But you can also go beyond religion when thinking about what traditions will suit your family.
The easiest way to start is to think of things that are important to your family. For many, food is an important part of Christmas. You can start a tradition where the family comes together to make and decorate Christmas cookies while enjoying some hot chocolate and eggnog. Your family can have a special meal every year, something grand and scrumptious that's only reserved for Christmas. A special treat might be for the entire family to gather around to watch Christmas themed movies, and these go beyond your standard Rudolph and Frosty animated films. How about "A Christmas Vacation," or "A Christmas Story"? There's a Christmas-themed movie geared toward every age. Let everyone in the family select a favorite snack to enjoy, dim the lights and snuggle up in your PJs for movie night.
Going Christmas caroling or out for a drive to "ooh and aah" over all the neighborhood Christmas lights and decorations are two fun outings. And don't forget about buying the family Christmas tree! This can be a tradition the entire family looks forward to every year. After the tree is bought, why not take the whole family out for some hot cocoa and pie? When you get home, put on some festive Christmas music and give everyone ornaments to help decorate the tree. You can even get everyone involved in stringing popcorn or cranberry garland for the tree.
Making Christmas crafts is another fun thing to do. Your local crafts store will have oodles of craft ideas. Making or buying an Advent calendar is a favorite treat for children. Reading special Christmas books as bedtime stories is another fun tradition for kids.
Really, there's no shortage of ideas when it comes to starting Christmas traditions for your family. It really just takes your imagination and thoughtfulness about what your family enjoys doing. The key is to have fun and enjoy being together.


text:
STUDIO tHEATRE PRESENTS, qUEEN mILLI OF gAULT
PHOTO CAPTION:
In rehearsal: Mary Ann Majoury and Brent Maguire star as Millicent Milroy and Edward VIII, Prince of Wales, in Gary Kirkham's Queen Milli of Galt, premiering Thursday, October 11th at the Studio Theatre in Perth.
Article by Paul Joyce / Photo by Len Modderman
Studio Theatre's new play explores a romantic Canadian mystery.
A monument in a roadside graveyard near Galt, Ontario, holds a fascinating clue, literally etched in stone, to a hundred-year-old mystery. Inscribed on the monument of Millicent Milroy, a quiet local schoolteacher who died in 1984, are the words "Millicent Milroy, daughter of James and Helen Jane Milroy, Wife of Edward (VIII), Duke of Windsor, 1894 – 1972."
Is it really possible that a rural Ontario schoolteacher was secretly married to one of the most controversial figures in British royal history? The dramatic facts of this incredible story are about to unfold at the Studio Theatre.
Thursday, October 11th, the theatre premieres Queen Milli of Galt, a play by Canadian playwright Gary Kirkham that brings the mystery of Millicent Milroy to light. Award-winning theatrical director Carolee Mason says she was captivated by this story after seeing the play performed last year.
"It is a historic fact that the Prince of Wales, Edward VIII, visited Galt in 1919, and that Millicent Milroy met him during his royal tour," says Carolee. "For more than 60 years, Milli repeated the story of their romance and marriage with such conviction that it can't simply be dismissed. Queen Milli of Galt imagines how their unlikely relationship may have unfolded."
Later in his life, Edward abdicated to marry Wallis Simpson, whom he adored for her domineering manner and irreverence toward him. Like Wallis, Millicent Milroy was no gushing royal-watcher, and this would have appealed to Edward. Apparently, she fell in love with the dashing prince before she even knew who he was.
Queen Milli Of Galt is a poignant drama filled with romance, humour, and history, starring Mary Ann Majaury, Brent Maguire, Joanna McCauley-Treffers, Sheila Jasiak, Rob Glas, Martin Treffers, Justin Lackey, and Danielle McDonald. It premieres on Thursday, October 11th for seven performances.
Advance tickets are $24 at Tickets Please and at the theatre box office on show nights. Students with ID pay just $10 at the door. Attend opening night and save $5. Visit studiotheatreperth.com for details.
NOTE: Auditions for The Gravitational Pull of Bernice Trimble will be held Tues. Oct. 30 and Thurs. Nov. 1 at 7 PM at the Theatre.


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Konami launches the Italian eFootball Cup: here are all the details
di Giuseppe Genga / Neural P 25 nov 2022 15:58
Konami today announced the launch of a new eSports tournament dedicated to eFootball: the "Coppa eFootball Italia" is a tournament based in Italy that will see the integration of eFootball partner clubs, players from their youth teams, important pro-players and, above all, fans. Here are the official details and a trailer dedicated to the event.
What is "Coppa eFootball Italia"?
The " Coppa eFootball Italia" represents a new esports opportunity for KONAMI and for football simulation. The tournament will see three different players join forces to form a team and represent each of the competing clubs. These will be: a player selected by the club's youth team, a pro-player who is currently part of the club's esports team and a fan of the club selected by an online qualifying tournament.
This unique team, made up of elite players and amateurs, together with the youth selection, represents a new fusion of its kind and unlike anything else seen in the current football simulation esports landscape.
Seven eFootball partner clubs involved
KONAMI is pleased to announce that all seven of its Italy-based eFootball partner clubs will participate in the "Coppa eFootball Italia". These are AC Milan, AC Monza, AS Roma, Atalanta BC, FC Internazionale Milano, SS Lazio and SSC Napoli.
Before the seven clubs compete for the title of champions of the "Coppa eFootball Italia", there will be the selections of the three representatives.
First, each club will organize an internal esports tournament among the players of its youth sectors to determine one of the representatives. This tournament will be accompanied by a seminar by the KONAMI eFootball Activations team that will provide an overview of the ever-changing world of esports and video games.
Second, an internal tournament at each club between their respective pro-players to determine who will represent them on the team.
The "Coppa eFootball Italia" is a new form of esports competition with many different elements coming together to bring it to life. The qualifiers and selections for the representative teams of the clubs and the resulting tournament will take place in stages between December 2022 and April 2023.
KONAMICI's qualifying phase will begin in February, allowing all fans to qualify for the finals. The knockout finals will conclude by the end of March 2023.
With the three-player teams representing the clubs confirmed, an offline group stage will begin where the clubs will face each other to determine their position in their respective groups. This phase will be transmitted by the study of "Coppa eFootball Italia". This phase will influence the draw for the knockout in the Grand Final weekend, in April.
Finally, once the rankings in the various groups have been established, the clubs will be drawn for the quarter-finals. From here, it will be a knockout tournament with two semi-finals, a play-off for third place (between the two clubs that will lose their respective semi-finals) and a grand final.
The Grand Final weekend will be an offline and live event hosted at Napoli COMICON on the weekend of April 28 – May 1, 2023.
The winning club will win the final prize, which includes a multimedia eFootballâ"¢ gaming centre that will be implemented in its youth training complex.
For the duration of the tournament, the official eFootballâ"¢ YouTube channel will be available for "eFootball TV", an episodic series recorded in the studio of the "Coppa eFootballâ"¢Italia".
These broadcasts will include analysis and highlights of the competition, interviews with players, appearances of players and legends from partner clubs, and an exclusive behind-the-scenes look that will give fans a well-rounded view of eFootball and the eFootballâ"¢ Italia Cup.
MP Video - eFootball
MondoPlay English News
MondoPlay is an italian site: this page contains machine-translated contents provided to help our foreign visitors to better understand our news.
You can read the italian version here, while you can stay up to date with our news via our english language RSS feed. Thanks for visiting!
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text:
Sheppard Parsons, President            Rob Monroe, Editor
107 Rose Hill Road                     2416 Edenbrook Dr.
Richmond, VA 23229                     Richmond, VA 23228-3040
shep.parsons@suntrust.com              RMonroe500@comcast.net
December 2006 PROGRAM
Mr. Stephen Recker
"IX Corps Final Attack:
The Pickett's Charge of Antietam"
8:00 p.m., Tuesday, December 12, 2006, at the
Stephen Recker  is  the  Director  of  Antietam  Battlefield
Guides,  a  guide  service  he  founded  in partnership with
Western Maryland Interpretive Association, the non-profit at
Antietam National Battlefield.  The program is modeled after
the Gettysburg system of licensed battlefield  guides.   Mr.
Recker  produced  Virtual Gettysburg, a critically acclaimed
interactive  Civil  War  battlefield  tour,  and   will   be
releasing   Virtual   Antietam  this  coming  summer.   Both
products have companion websites: VirtualGettysburg.com  and
VirtualAntietam.com.   Recker, a graduate of Berklee College
of Music in Boston, was named a "Top  100  Producer"  by  AV
Multimedia  Producer  Magazine.  He recently completed a DVD
about Little Bighorn and is currently producing a  new  film
for the Antietam National Battlefield visitor center.
Over  the  last  16  years the Antietam National Battlefield
Park has more than doubled in size due to the acquisition of
properties such as the Otto Farm.  The National Park Service
continues to improve and interpret  the  south  end  of  the
battlefield  which  until  recently  was inaccessible to the
public.  On the afternoon of Sept 17, 1862 the  final  Union
assault  took  place over this rolling terrain.  The Federal
IX Corps literally fought an uphill battle as they  ascended
200  feet from the banks of Antietam Creek to the streets of
Sharpsburg.  They came within a hairsbreadth of cutting  off
Lee's  avenue  of  escape  to the Potomac fords.  The broken
ground contributed greatly to the  Confederate  defense  and
allowed  A.P.   Hill's  arriving reinforcements to inflict a
crushing flank attack, which stopped the Union advance.   In
this  month's  program,  Stephen  Recker  will take you on a
`virtual'   tour   of   that   decisive   ground   using   a
never-before-seen prototype of Virtual Antietam.
Museum of the Confederacy News and Events
At its November's meeting, The Museum of  the  Confederacy's
Board  of  Trustees  announced  their  election of Executive
Director S.   Waite  Rawls  III  to  the  newly  established
position  of  President and Chief Executive Officer.  Museum
Board Chairman Carlton  Moffatt  said  of  the  appointment,
"Electing  Mr.   Rawls  to  this position reflects the trust
that the Board has in him  and  his  abilities.   Since  his
arrival  he  has dealt with a remarkably difficult situation
with professionalism and sound judgment.  We have confidence
that  with  his  guidance  the  Museum will continue to move
forward with success."
Rawls became executive director of  the  museum  in  January
2004   following   a   long   career   as  an  executive  in
international  investment  and  commercial   banking.    His
parallel  career  in  volunteering  for historical and civic
organizations includes long-term trusteeships of  the  Civil
War Preservation Trust and the Jamestown-Yorktown Foundation
and member of  the  Virginia  Military  Institute  Board  of
When asked about his change in position at the museum, Rawls
replied, "I am  honored  that  the  Board  of  Trustees  has
recognized  my  efforts in this way, but any accomplishments
at the Museum are a joint result of the hard work by all the
staff, our volunteers, members and donors, who have given of
themselves and  their  resources  to  help  aid  the  museum
through our financial crisis."
A  native of the town of Franklin, Rawls received a B.A.  at
VMI and was awarded an M.B.A.  and J.D.  by  the  University
of  Virginia.   Since the mid-1980s, he has been director of
The Camp Foundation and the College Orientation Workshop, an
organization that sponsors rigorous academic summer programs
for inner city teenage boys.
In other news  from  the  Museum  of  the  Confederacy,  the
institute  is  offering  visitors  the chance to explore its
exhibits like never before.  "Behind the Glass Case: Gallery
Talks  and Demonstrations" is a series of programs beginning
at 11:45am each Monday through February, excluding Christmas
Day  and  New  Years  Day.   Museum experts chat about their
favorite subjects in the galleries and give visitors a fresh
look at history.
Talks  last approximately 30 to 45 minutes and are free with
the regular admission price.   Please  call  (804)  649-1861
ext.   10  on  the  day  of the talk for lecture topic.  The
tentative  schedule  for  upcoming  programs  includes   the
Confederate  Navy  (December  11),  a  medical demonstration
(December 18) and flags on display (January 8).
The Museum of the Confederacy has also  designed  a  program
for  Junior Girl Scouts seeking to meet all the requirements
of the Folk Arts Badge.  On Saturday January 6, Girl  Scouts
will  discover  what  photographs  can  tell us about family
life, participate in  the  Virginia  Reel,  design  a  quilt
square,  play children's games of the past, create their own
period craft and tour the White House  of  the  Confederacy.
Scout  leaders may enroll their troops in either the morning
(9:30-12:15) or afternoon (1:45-4:30) session.  The  program
will  be  offered  again  in  February  and March.  For more
information contact Kelly Hancock at (804) 649-1861 ext.  21
or khancock@moc.org
American Civil War Center Invites Holiday Shoppers
The American  Civil  War  Center  at  Historic  Tredegar  is
encouraging  holiday  shoppers to give a gift of history and
save money at the same time.
Throughout the month of December, shoppers save 10%  on  all
purchases  made  in  the  center's museum store.  On Sunday,
December 17, visitors can enjoy discount admission - $4  for
adults/seniors; $2 for children 17 and younger - from 1-5pm.
There will be  living  history  demonstrations,  period  and
holiday  music,  children's  "make  and  take" crafts, light
refreshments and free parking.
Displays throughout the store  will  explore  a  variety  of
cultural   and  religious  traditions  associated  with  the
holiday season.  Shoppers are invited to peruse the  store's
diverse  selection  of  books  ranging  from  works by local
authors to biographies of famous Civil War  leaders.   Books
highlighting  the African American experience, both pre- and
post-Civil War, Richmond history and civilian life line  the
For  the  young  at  heart,  there are collectibles of every
kind.  From the broad spectrum of reproduction period  toys,
to  such  novelties  as cartridge powder candies and Lee and
Grant bobblehead dolls, there  is  something  for  everyone.
Dolls  of  the period, playing cards, plastic swords and toy
soldiers allow for active play and youthful imagination. Or,
fit   your  very  own  uniforms  for  the  little  Union  or
Confederate soldier in the family complete with a hat, coat,
belt plate or canteen.
The adult history enthusiast may choose from pewter and hand
painted collectible statues, jewelry, and house  wares.   An
ornate  silver  plated clock in a biscuit box is the perfect
vintage accent to home d�cor.
The American Civil War Center is open daily, Monday  through
Sunday,  9am to 5pm.  Regular admission to the exhibit is $8
for adults, $6 for seniors and students, and $2 for children
age  7-12.   For  more  information  visit www.tredegar.org,
phone (804) 780-1865 ext.  10 for the museum store or  visit
the Center at 500 Tredegar Street.
Pamplin Park to Host Lecture and Book Signing
A.  Wilson Greene, author, historian and President & CEO  of
Pamplin  Historical  Park & The National Museum of the Civil
War Soldier, will speak at the museum about his newest book,
Civil  War  Petersburg:  Confederate City in the Crucible of
War.  The book tracks both Petersburg's civilian  experience
and  the  city's  place in Confederate military strategy and
administration.  Employing scores  of  unpublished  sources,
the  book  weaves  a uniquely personal story of thousands of
citizens -- free blacks, slaves and their  holders,  factory
owners  and  merchants  --  all  of  whom  shared a singular
experience in Civil War Virginia.
The lecture is free and will be held  at  2:00  on  Saturday
afternoon,  December 16 at the Hardtack & Coffee Cafe in the
museum.  Afterward, Greene will sign  copies  of  his  work,
which  will  be available for sale in The Civil War Store at
Pamplin Historical Park.
Commission Plans to Commemorate
150th Anniversary of Civil War
On  Thursday,  November  9,  members  of  the  newly  formed
Virginia   Sesquicentennial   of   the  American  Civil  War
Commission met at Pamplin Historical  Park  &  The  National
Museum  of  the Civil War Soldier.  The Commission discussed
plans and objectives for the upcoming commemoration  of  the
American  Civil  War.   Organizations  represented  in  this
meeting included Commission members of the General Assembly,
the National Park Service, the Civil War Preservation Trust,
the Virginia Historical Society, the White House and  Museum
of  the  Confederacy  and  Pamplin  Historical  Park  &  The
National Museum of the Civil War Soldier.  Noted individuals
in  the  discussion included the Chair, Speaker of the House
of Delegates, Bill Howell; Vice-Chair, President Pro Tempore
of the Senate, John Chichester; and distinguished author and
historian, Dr.  James I.  Robertson, Jr.
A.  Wilson Greene, President and CEO of  Pamplin  Historical
Park  stated,  "This  commemoration  needs  to  include  all
Virginians from all walks of life.   The  150th  anniversary
will  be  our best opportunity to create a new generation of
Civil War enthusiasts."
The Virginia Sesquicentennial  of  the  American  Civil  War
Commission  was  created  this  year  and will be a standing
commission through July 1, 2015.  The commission is  charged
with  planning,  developing,  and  carrying out programs and
activities appropriate to commemorate  the  sesquicentennial
of the Civil War in Virginia.
To  find  out more about the 150th anniversary commemoration
of the  Civil  War,  contact  Cheryl  Jackson,  Division  of
Legislative  Services,  at  (804)  786-3591.  In 2007, a new
website specifically dedicated for  the  commemoration  will
have  more  detailed  information  of events and meetings at
You can receive your newsletter sooner and help the Richmond
Civil  War  Round  Table save money by signing up to receive
your newsletter via email.  To add your name  to  the  list,
simply email the editor at RMonroe500@comcast.net   Thanks!


Clear your desk, bring out your favorite pens, and get the stamps and washi tape ready. April is national card & letter writing month. Got an overdue thank-you note to write? Send it in April and pretend like you waited on purpose. Friend need a boost? Yep, send a card. More ideas? Check out the #write_on campaign HQ.
April is also child abuse prevention month, so we're doing a special, limited-edition series of cards to benefit Memphis-based charities that help children heal from the trauma of violence and neglect. Available April 1-30, 2019 only.


In our first issue of 2016, we take on the delicious task of determining what lies ahead for the world of food.
From meat that's never seen an animal to food that's printed instead of prepared, it's all change when it comes to the food we're set to consume in the future, and we're taking a close look at where this could lead. In addition, we take a look at some of the flavours we'll be enjoying in the world of tomorrow, and find out if food replacements could become a staple of our future diets.
Plus there's a look at the robotic chef that's set to be a central part of the kitchen of the future.


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Q: The neo4j documentation says that unmanaged extensions are dangerous. I want to know how? The neo4j documentation here
says that unmanaged extensions can be dangerous but does not explain how . Any examples or cases to explain how it may be dangerous would be much appreciated.

A: The tip, as you guess, lies in the name: unmanaged.
Unmanaged extensions are very powerful and allow you to deploy arbitrary code, such as those very bad things (the list is not exhaustive):

*

*System.exit

*security loopholes (like unchecked HTTP request parameters allowing Cypher injection for instance)

*thread-unsafe code

*inefficient Cypher queries/traversals (PROFILE might help troubleshooting with Cypher)

*highly garbage-producing code (e.g. creating many orphan objects in a giant Java for-each loop)

Simple example regarding the last point:
// do not do this at home
String foo = "";
for (int i = 0; i < 1000000; i++) {
    foo += String.valueOf(i);
}

This is of course both very naive and possible. Again, you can deploy arbitrary code and could end up in such a situation where the heap of your Neo4j instances gets polluted because of inefficient code defined in one of the active unmanaged extensions.
Indeed, unmanaged extensions directly impact your Neo4j instance(s) as they share the same server and environment. That is why you must be careful when using such a feature (and by careful, I just mean: monitor).