[gecode-users] Space entailment
Mikael Zayenz Lagerkvist
zayenz at gmail.com
Thu Mar 1 14:30:17 CET 2007
On 3/1/07, Gustavo Gutierrez <ggutierrez at cic.puj.edu.co> wrote:
> Hi all,
>
> I was wondering about the representation of the entailment relation in
> gecode. Suppose you have a space with variables and constraints. How
> can i verify if an extra constraint is already entailed by the store
> (space)?. In the mozart terminology this is the difference between a
> succeeded(entailed) and a succeeded(stuck) space. Of course, here we
> will not take threads into account since threads does not exist in
> gecode.
>
> At implementation level, if the relation implemented by a propagator
> to be posted in the space is already represented in terms of variables
> domains, the propagator is not posted at all. Then counting how many
> propagators are in the space before the posting of the new one and
> comparing it to the number of propagators after posting it, is enough
> to verify that property.
>
> Do you agree??
The short answer is no, this will not tell you if the posted
constraint was entailed.
In general, entailment for a constraint is a co-NP complete problem,
which means that it is a property that can only be approximated for
many common constraints.
For some constraints, posting will check for entailment (e.g., Boolean
or) and for some it will not (e.g., distinct). Furthermore, some
constraints there are good entailment checks (e.g. linear
in-equations) while others don't have any good ones (most global
constraints). As a simple example, try posting a distinct-constraint
on a collection of variables with non-overlapping ranges. The
constraint is trivially entailed, but the propagator is still not
subsumed.
A more specific reason why your technique won't work (not even as an
approximation), is that a newly created propagator will (in most
cases) be scheduled for propagation. To get a correct calculation of
the number of propagators, you would need to compute the fixpoint.
When you call status() for the space, the propagator will be run,
possibly resulting in some domain-reductions and more propagators
being run. One (or more) of the other propagators could in turn be
subsumed, leading to the count returned from propagators() to look
like the constraint was entailed.
If I recall correctly, Mozart/Oz is more strict than Gecode when it
comes to detecting entailment of propagators. But I am no expert in
the Mozart system. The common theme in Gecode is to try to delay
invocation of propagators until they can propagate.
A good example of possible approaches is the not-equals constraint
between two variables. If you only want to run the propagator when it
can propagate, it should only be run when one of the variables is
assigned. If we want to get early subsumption, it should listen to all
events to see if the domains are non-overlapping.
Hope this helps,
Mikael
--
Mikael Zayenz Lagerkvist, http://www.ict.kth.se/~zayenz/
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Datta Able comes with Bootstrap 4 & Angular 6. It is best kind of own Dashboard categoty.
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Ida Jorgensen


| Path: | vendor/plugins/spider_test/README |
| Last Update: | Thu May 15 13:22:25 -0700 2008 |
SpiderTester
SpiderTester is an automated integration-testing script that iterates over every page in your application. It performs a few valuable tasks for you:
- parses the html of every page, so if you have invalid html, you will be warned. - finds every link to within your site and follows it, whether static or dynamic. - finds every Ajax.Updater link and follows it. - finds every form and tries to submit it, filling in values where possible.
This is helpful in determining:
- missing static pages (.html) - poor code coverage - forgot to test a file? Don't wait for a user to find it. - simple fuzzing of form values. - automated testing of form paths. Often we have forms which point to incorrect locations, and up until now this has been impossible to test in an automated fashion or without being strongly coupled to your code.
USAGE
$ script/plugin install svn://caboo.se/plugins/court3nay/spider_test $ script/generate integration_test spider_test
Load up the test/integration/spider_test.rb and make it look something like this, replacing your own implementation details where appropriate. You‘ll probably want to load all of your fixtures.
require "#{File.dirname(__FILE__)}/../test_helper" class SpiderTest < ActionController::IntegrationTest fixtures :users, :roles, :images, :categories include SpiderIntegrator def test_spider get '/' assert_response :success<EMAIL_ADDRESS>'/') end end
If you require a login for your app, you‘ll need to specifically log in. I do it like:
require "#{File.dirname(__FILE__)}/../test_helper" class SpiderTest < ActionController::IntegrationTest fixtures :users, :roles, :images, :categories include SpiderIntegrator def test_spider get '/sessions/new' assert_response :success post '/sessions/create', :login => 'admin', :password => 'test' assert session[:user] assert_response :redirect assert_redirected_to '/' follow_redirect<EMAIL_ADDRESS>'/') end end
Todo:
- better, aka more random, fuzzing. currently, I check the fieldname and change the data types accordingly. It'd be good to have some more advanced algorithm in here - specify which actions to ignore you can modify this by editing the plugin and setting @visited_urls and @visited_forms but this should be more easily settable. - use hpricot instead of html::document no clue, really, but I hear hpricot is faster. x better capturing of errors instead of dying each time there's an error, store them all up so the user can fix 'em all at once.
Changelog:
SVN
Better capturing of errors (waits until the end to display the errors or missing pages) More fun status dots (! for error, ? for missing file)
0.1 : Initial release


Harry Styles announces 2020 tour
US leg of 'Love on Tour' begins in June
by Chloe Melas, CNN(CNN) - Harry Styles is hitting the road.
The former One Direction star on Wednesday announced a 2020 world tour, "Love On Tour."
The show kicks off in April in the United Kingdom and includes dates across Europe before heading to North America.
Styles will also feature other acts on the tour, including King Princess, Jenny Lewis and Jamaican reggae singer, Koffee.
The North American tour will begin on June 26 in Philadelphia at the Wells Fargo Center. Tickets for the tour go on sale Friday.
Styles is a busy man these days, promoting his upcoming album, "Fine Line," which will drop Dec. 13. The singer will be pulling double duty this weekend, hosting "Saturday Night Live" for the first time while also expected to perform his hit single, "Lights Up."
Styles debuted the music video for "Lights Up" last month.
His tour wraps up on Oct. 3, 2020, in Mexico City.


{% extends 'workshop.html' %} {% block content %}
Time to Success: 50-65 minutes
Ok, so fair warning; although this workshop is entitled Move over, Trinity I do not expect you to become a lightning fast hacker with this workshop. Basically, I'm hoping we can arm you with the tools to complete the exercises in the rest of the workshop, and not give an overly long view of Computer Science and Programming in general.

We're here to teach you to learn how to learn how to code.
So we're going to take a different tack in this module, and instead of the more complete and verbose explanations, we're going to give you a task, then we'll give you the discussion after you've attempted it. Good luck!
Keep in mind that you're going to need a text editor for this, as well as an open Terminal window in the working directory for where you're going to write these programs!
Write a program that prints out a greeting to the command line.
In order to execute a python program, you'll have open a terminal window and navigate to the directory containing your python program that you wrote in a text editor. If that program is named "hello.py" then use the following command:
$ python hello.py
A convention that python programmers use for programs that execute from the command line like we're doing is to put all their execution code in blocks like the following:
if __name__ == "__main__": print "Good Program!"
Don't worry if you don't get it-- but it is very good to do! You'll probably thank me later!
Write a program that prints all digits from 10 to 4
One good thing to consider is rather than writing 6 lines of code for each print statement, is to do a little bit of math. You'll need a variable to store the number you're currently on, then update it using subtraction after you print the number out.
You can't subtract only once in this case, you'll have to keep doing it
until a condition is met. What will keep the program subtracting? You're
probably going to have to use a for
loop or a while
loop to keep the subtraction going.
You'll have to test to make sure when to stop, otherwise you're program will just keep going forever! In this case, you need to ensure that your variable holding the current number (or state) is tested to make sure it's not less than four. If it is, then you're done!
There are many ways to write this program, here are a few:
There are usually many ways to solve programming problems, how did you solve this one?
Write a program that creates a list of contacts with their name and birthday
You're going to need a place to keep all of your data, and for the time being, the best way to keep it is in a list or a dictionary at the top of your program. All your functions will be able to access that list by name.
In this case, your function needs to take in two parameters, name and birthday. Interestingly, you'll have to decide how you'd like to store the Birthday; should you pass the day, month, year as seperate things? Are they numbers or strings? The arguments to the function can be parameters or keyword arguments.
You can always create seperate data structures for each month to store the birthdays by month. However, a nested data structure, e.g. a list of lists or a dictionary of lists, could help keep things more compact.
One possible solution to the finding the youngest person is to use the built in datetime module that is in Python. Datetime allows you to do math on dates and has a particularly good and efficient data store for dates and times. Ask your instructor if you're interested. However-- there are other ways, don't be afraid to try!
I highly recommend Learning Python the Hard Way by Zed A. Shaw. Don't worry, it's not as hard as it sounds!
{% endblock %}


Generate artwork using programs. We will explore generating artwork from within a browser. There are several parameters exposed for each artwork like background, stroke color which can be explored to obtain various diagrams. Some of the artwork planned
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Publisher
public extension iCombine.Publisher
Publisher+Constants.swift CombineUtility
Date
28/8/21-
An empty publisher with the current publisher output and failure.
Declaration
Swift
static var empty: iCombine.AnyPublisher<Output, Failure> { get }
-
Sink a publisher and record any result in
PublisherResult
Warning
This class doesn’t belong to Combine and need to be implemented manually after migrating to Combine.Declaration
Swift
func test() -> PublisherResult<Output, Failure, iCombine.Cancellable>
Return Value
The object that contains any events happening in the result
-
Attaches a subscriber with closure-based behavior.
Declaration
Swift
func sink(receiveFinished: @escaping (() -> Void) = {}, receiveFailure: @escaping ((Self.Failure) -> Void) = { _ in }, receiveValue: @escaping ((Self.Output) -> Void) = { _ in }) -> iCombine.AnyCancellable
Parameters
receiveFinished
The closure to execute on finishing
receiveFailure
The closure to execute on receipt of a failure
receiveValue
The closure to execute on receipt of a value
Return Value
A cancellable instance; used when you end assignment of the received value. Deallocation of the result will tear down the subscription stream.
-
Map any error into a specific error.
Declaration
Swift
func mapError<E>(into error: E) -> iCombine.AnyPublisher<Output, E> where E : Error
Parameters
error
The error to be mapped into.
-
Ignore errors occur in the publisher
Declaration
Swift
func ignoreError() -> iCombine.AnyPublisher<Output, Never>
-
Remove all nil values from the stream
Declaration
Swift
func removeNil<O>() -> iCombine.AnyPublisher<O, Failure> where Self.Output == O?


COLRM(1) BSD General Commands Manual COLRM(1) NAME colrm — remove columns from a file SYNOPSIS colrm [start [stop]] DESCRIPTION The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read from the standard input. Output is written to the standard output. If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are specified, col‐ umns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not zero. Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one. ENVIRONMENT The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7). EXIT STATUS The colrm utility exits 0 on success, and >0 if an error occurs. SEE ALSO awk(1), column(1), cut(1), paste(1) HISTORY The colrm command appeared in 3.0BSD. BSD August 4, 2004 BSD


/**
* A map of Handlers, in the form
* [HandledEvent => [HandlerOne, HandlerTwo]]
* @var array
*/
private $listeners = [];
public function dispatch($event): void
{
// *snipped* handling of special cases
foreach ($this->handleableTypes($event) as $type) {
foreach ($this->listeners[$type] as $listener) {
$listener->handle($event);
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}
}


“Let’s not forget to fight for those who can’t remember”
Find Out MoreOne of the scariest consequences of dementia is that patients tend to wander off.
Imagine a lady with dementia sitting at home and suddenly thinking it is time to go to office (even though she retired 20 years ago). The surroundings seem familiar for awhile, but then she is confused.
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Wikidata id: Q174989
Individual Properties:
- block_size {#unsigned long long} (size of a single block / sector in bytes) - volume_size {#unsigned long long} (total size of the file system in bytes) - volume_name {#char[256]} - endianness {little, big} - version {#int} - UUID {#char[256]} - floppy_size {DD, HD} (Does the volume_size match the size of a DD/HD floppy?) - last_mounted {#char[256]} (location of the last mounting)
Instance of File System.
(HPFS)
Inherited Properties:
+ version (File System) + volume_size (File System) + block_size (File System)
Individual Properties:
- functional_version {#int}
Found in [dos.c]
Instance of File System.
no properties
Found in [amiga.c]
Instance of File System.
Inherited Properties:
+ volume_name (File System) + volume_size (File System) + block_size (File System)
Individual Properties:
- publisher {#char[256]} - preparer {#char[256]} - application {#char[256]} - joliet_extension {#char[256]} (volume name if a joliet extension is recognized) - el_torito_boot_record {#unsigned long long} (catalog position if an El Torito boot record is found) - descriptor {additional_primary_volume_descriptor, volume_partition_descriptor} (contains the respective descriptor if any is found)
Found in [cdrom.c, amiga.c]


T_Coffee is a multiple sequence alignment package. The version included with this distribution of Rocks is v3.84
T-coffee is used for standard alignments and alignment combinations. It is installed at /opt/Bio/t_coffee/ on the Rocks distribution. To use T-Coffee, just type t_coffee at the command line for a list of all possible parameters that can be used. T-coffee recognizes formats such as fasta, clustalw, blast, etc. Example input files are available at /opt/Bio/t_coffee/example/
A simple sequence alignment example is shown below about. It is run against a sample fasta file present in the example directory. Parts of the output are deleted for the sake of brevity.  Library Total Size: [5142] #### File Type= WEIGHT Format= tc_weight Name= no | NOT PRODUCED [WARNING:T-COFFEE:Version_3.84] WEIGHTED MODE:t_coffee 1cms 0.61 1cms_1 3.32 2apr 0.59 3app 0.49 4ape 0.48 4pep 0.51 MAKE NEIGHBOR JOINING DENDROGRAM [MODE=nj][DONE] PROGRESSIVE_ALIGNMENT [Tree Based] Group 7: [Group 6 ( 1 seq)] with [Group 1 ( 1 seq)]-->[Score= 53][Len= 176] Group 8: [Group 2 ( 1 seq)] with [Group 7 ( 2 seq)]-->[Score= 8][Len= 196] ...... CLUSTAL FORMAT for T-COFFEE Version_3.84, CPU=0.94 sec, SCORE=34, Nseq=6, Len=204 1cms ---gevasvpltnyl-dsqyfgkiylgtppqeftv------------------lfdtgss 4pep -----igdeplenyl-dteyfgtigigtpaqdftv------------------ifdtgss 1cms_1 y-tgslhwvpvtv----qqyw----------qftvdsvtisgvvvaceggcqaildtgts 2apr a---gvgtvpmtdygndieyygqvtigtpgkkfnl------------------dfdtgss 4ape s-tgsatttpids-l-ddayitpvqigtpaqtlnl------------------dfdtgss 3app aasgvatntptan---deeyitpvtig--gttlnl------------------nfdtgsa * * :.: :***:: ...... OUTPUT RESULTS #### File Type= GUIDE_TREE Format= newick Name= sample_aln2.dnd #### File Type= MSA Format= clustalw Name= sample_aln2.aln TIP: Change the Width of your MSA with the environement variable ALN_LINE_LENGTH (all formats) Command Line: t_coffee /opt/Bio/t_coffee/example/sample_aln2.fasta [PROGRAM:T-COFFEE] T-COFFEE Memory Usage: Current= 4.233 Mb, Max= 6.807 Mb T-COFFEE CPU Usage: 940 millisec [nostromo@rocks-168 ~]$ |
Further information about t_coffee is available at -
On your cluster head node at /opt/Bio/t_coffee/doc/


--- layout: single author_profile: true classes: wide title: "Publications" permalink: /publications/ ---
(with Zeynep Duygu Tekler and Lucienne Blessing)
Building and Environment, Elsevier. [Paper]
(with Zeynep Duygu Tekler and Lucienne Blessing)
Building and Environment, Elsevier. [Paper]
(with Zeynep Duygu Tekler and Lynette Cheah)
International Journal of Geo-Information, MDPI [Paper]
(with Lih Wei Yeow, Yu Xiang Tan and Lynette Cheah)
International Journal of Geo-Information, MDPI [Paper]
(with Zeynep Duygu Tekler, Yuren Zhou, Lucienne Blessing and Costas Spanos)
Applied Energy, Elsevier [Paper]
(with Zeynep Duygu Tekler, Kenny Tsu Wei Choo and Lucienne Blessing)
Extended Abstracts of the 2021 ACM CHI Conference on Human Factors in Computing Systems, Yokohama, Japan [Paper]
(with Zeynep Duygu Tekler and Lynette Cheah)
Transportation Research Record: Journal of the Transportation Research Board, Sage Journals [Paper]
(with Linlin You and Lynette Cheah)
IEEE Transactions on Intelligent Transportation Systems, IEEE [Paper]
(with Zeynep Duygu Tekler, Burak Gunay, Rune Korsholm Andersen and Lucienne Blessing)
Building and Environment, ScienceDirect [Paper]
(with Zeynep Duygu Tekler and Lucienne Blessing)
Int. Conference on Climate Resilient Cities - Energy Efficiency & Renewables in Digital Era (CISBAT), Lausanne, Switzerland [Paper]
(with Zeynep Duygu Tekler and Lucienne Blessing)
10th Int. Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings (IAQVEC), Bari, Italy [Paper]
(with Zeynep Duygu Tekler, Si Ying Chung, Jonathan Sze Choong Low and Lucienne Blessing)
26th CIRP Conference on Life Cycle Engineering (LCE), Purdue University, USA [Paper]


should contain the average time for each challenge
should contain the win to lose ratio
should be able to playback past matches


--- title: 'Pricing: Raise, Lower or Stay' author: Sunita Kenner date: '2017-06-01' slug: pricing-raise-lower-or-stay categories: - Pricing - Business Science tags: - R - Price Elasticity - Linear Regression ---
“We would like to increase our revenue, so can we raise the price of Product”X“”? A question I’m often asked during Financial & Forecasting Fiscal Year Planning cycles. Using pricing as one of the levers to maximize revenue or profit margins is one of the challenging decisions businesses have to make. For offerings already in the market, how does a business determine if the pricing is right or optimal without the guesswork or intuition?
I usually start with gathering feedback on the product in question from Sales/Product Managers/Owners. Merging their feedback + my knowledge base on key features such as the competitive landscape for the product, Average Selling Price, regions/countries/industries its sold, discounts/promotions/launch initiatives, etc., provide an understanding and verifying relationships in the transactional database.
Past the intel gathering phase from subject Matter Experts and the availability of data with relevant features, the next step in my approach is to figure a customer’s price sensitivity by determining the price elasticity of the product. It is one of the several approaches that help predict the impact of pricing on product demand, and provides guidance to a company’s overall pricing strategy.
Price elasticity of demand (PED or Ed) is a measure used in economics to show the responsiveness, or elasticity, of the quantity demanded of a good or service to a change in its price, ceteris paribus. More precisely, it gives the percentage change in quantity demanded in response to a one percent change in price (ceteris paribus).
The R code below is a simple example of the Price elasticity analysis using a linear regression model.
Here’s a visual of the example data.
To determine which variables are strongly correlated to qty
sold, let’s use GGally’s ggpairs() function.
Final_Product_data %>% select(qty, cost, everything()) %>% ggpairs(lower = "blank")
The magnitude of the correlation coeffs between qty
and cost
is the highest, followed by Month
and Year
, so a linear regression model can include all the variables.
m.Final_product <- lm(qty ~ cost + Month, data = Final_Product_data)
sum_m.Final_product <- summary(m.Final_product)
sum_m.Final_product
##
## Call:
## lm(formula = qty ~ cost + Month, data = Final_Product_data)
##
## Residuals:
## Min 1Q Median 3Q Max
## -108.934 -29.140 -4.127 32.505 158.218
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 400.45221 306.89425 1.305 0.196
## cost -9.21379 0.95594 -9.638 5.54e-15 ***
## Month 0.06868 0.01264 5.436 5.90e-07 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 48.59 on 79 degrees of freedom
## Multiple R-squared: 0.883, Adjusted R-squared: 0.88
## F-statistic: 298.1 on 2 and 79 DF, p-value: < 2.2e-16
In this example, I have included only cost
and Month
variables with their P value at 5.543328910^{-15}, and 5.897822610^{-7} respectively, as they appear to be significant in affecting the volume of sale units.
We can try different model set-ups to find the best fit based on R2 and adjusted R2 values. Using functions in tidyverse/modelr/broom.
#Create List of models
formulas_for_lm <- list(
prod_no_log <- qty ~cost + Month,
prod_w_log <- log10(qty) ~ log10(cost) + Month
)
# Map the lm function to the list of formulas
Rsquared_fit_all <- formulas_for_lm %>%
map(lm, data = Final_Product_data) %>%
map_df(glance, .id = "model") %>%
select(model, r.squared, p.value)
#Display Rsquared
Rsquared_fit_all
## model r.squared p.value
## 1 1 0.8829924 1.564806e-37
## 2 2 0.8656075 3.722364e-35
#
slope_intercept_all <- formulas_for_lm %>%
map(lm, data = Final_Product_data) %>%
map_df(tidy, .id = "model") %>%
select(model, term, estimate, std.error)
slope_intercept_all
## model term estimate std.error
## 1 1 (Intercept) 4.004522e+02 3.068942e+02
## 2 1 cost -9.213787e+00 9.559375e-01
## 3 1 Month 6.868009e-02 1.263543e-02
## 4 2 (Intercept) 5.217442e+00 8.894790e-01
## 5 2 log10(cost) -2.157626e+00 3.232426e-01
## 6 2 Month 1.134625e-04 1.548824e-05
The best fit model appears to be model 1, so let us visualize the predicted values.
plot_model1 <- Final_Product_data %>%
add_predictions(m.Final_product) %>%
ggplot(aes(x = cost)) +
geom_point(aes(y = qty), data = Final_Product_data, color = "firebrick") +
geom_line(aes(y = pred))
plot_model1
To estimate the PE, we will need the coefficient on cost
\((\Delta Q/\Delta P)\) from the model, and the average cost & average quantity sold from the dataset:
PEcalc <- function(modelresult, df) {
PE <- round(as.numeric(modelresult$coefficients[2] * (mean(df$cost)/mean(df$qty))),2)
return(PE)
}
PEcalc(m.Final_product,Final_Product_data)
## [1] -3.25
The PE for the first model is -3.25, which shows that a 1% decrease in price will increase units sold by 3.25%. Or a 10% decrease in price will increase units sold by 32.5% and vice-versa.
Elasticity Interpretation:
The optimal price includes a “markup” proportional to the price elasticity of demand.
To find out the optimal price to maximize either revenue, or profit, we simplify the model output to:
options(scipen=999)
# x is the price
# Assume no marginal cost
equation_1_nocost = function(x) x*((m.Final_product$coefficients[[1]]) + PEcalc(m.Final_product,Final_Product_data)*x+ (m.Final_product$coefficients[[3]]))
# Assume $10 as marginal cost
equation_w_cost = function(x) (x-10)*((m.Final_product$coefficients[[1]]) + PEcalc(m.Final_product,Final_Product_data)*x+ (m.Final_product$coefficients[[3]]))
opt_price_w_no_cost <- optimize(equation_1_nocost, c(50,140), maximum = TRUE)
opt_price_w_cost <- optimize(equation_w_cost, c(50,100), maximum = TRUE)
The optimal price for maximizing revenue is 61.62; the maximum profit will be $
12339.77.
The optimal price for maximizing profit is 66.62; the maximum profit will be $
10418.41
Predict the sales
data_w_new_price <- tibble(cost = opt_price_w_no_cost[[1]], Month = as.IDate("2017-07-01"))
predict(m.Final_product, data_w_new_price, interval = "p")
## fit lwr upr
## 1 1024.174 888.1762 1160.171
Thanks to Allan Engelhardt for all his help on the analysis/thorough explanation of linear regression models, and the excellent and detailed Cross-Price_Elasticity article by Jack Han.


This is the first time you started the digitizer after the initial installation. You have been automatically routed to the initial setup procedure. Here you adjust the settings for your meter within five steps. In the final step the inital setup will be disabled and it will restart to the normal mode. All settings will also be accessible there. See https://jomjol.github.io/AI-on-the-edge-device-docs/initial-setup for additional explanations.
You can navigate forward and backward during the setup with the buttons "Next" and "Previous".
Do not forget to save in each step before heading to another step!
This is an overview over the five steps:
Create the Reference Image.
It is the base for the position referencing and the identification of the digits and counters.
Define two unique Reference Marks.
They is used to align the individual camera images and identify the absolut positions.
General Settings
Further configuration of your device.
Please be patient when switching to another step. The device takes some time to load all needed information!
After step 5 the setup is completed, you then can reboot and starts into the normal operation mode.
If you need support, have a look to the documentation or the discussion pages.
Have fun with your digitizer!


There are two lists you can sign-up to for updates, A general news & updates list, sent on a weekly basis, and a security alerts list that's sent when new security updates are available.
News and Updates | Security Alerts


Difficulty: 1
Time: 10 minutes
As your web sites grows and maintenance gets more detailed, links will break due to web pages being moved or changed. In a big website, manually checking each link is a time consuming task and difficult to track.
There are tools available to automate this task, but they all have their pros and cons. Some web tools lack features, while others are resource intensive and run on the same server as the website.
Wget is a Linux-based tool that you can use to check for broken links on a separate machine. This tool includes highly customizable web crawlers (wget
) and custom-built link checkers (linkchecker
and klinkstatus
) that minimize the negative impact on your website.
In this article you will learn how to find broken links on a website using wget
, so that you can fix them.
For this article, you will need:
wget
, and one web server for hosting your website.If your domain name is registered through COMPANY_NAME and you're using COMPANY_NAME Cloud Servers, point your domain name to your server.
If you're using COMPANY_NAME Cloud Servers, but a domain name registered somewhere else, find your server's IP address.
Let's create a webpage with a few broken links to test using wget.
Internal missing link

External missing link.

Wget is a free software package for retrieving files using HTTP, HTTPS, and FTP that can also be used as a web crawler.
Here you will use wget to report if your links are pointing to an existing web page or if they are broken or if the page is not downloading.
| Flags | Description |
|---|---|
| --spider | Tells wget to not download the page |
| -r | Tells wget follow each link recursively |
| -nd | Short for --no-directories . Tells wget to not create a hierarchy of directories on your server. |
| -nv | short for --no-verbose , tells wget to not otuput extra information for broken links. |
| Flags | Description |
|---|---|
| -H | Lets wget go to subdomains and domains other than the primary one |
| -l 1 | The number of levels to which wget will crawl |
| -w 2 | The number of seconds that wget will wait between requests |
| -o test1.log | The name of the file where wget will be saving the output of the run |
http://your server IP/errorlink1: Remote file does not exist -- broken link!!! -- https://cloud.godaddy.com/servers/brokenlink: Remote file does not exist -- broken link!!!
Wget shows you the broken links in your pages, but it doesn't let you know to what page they are being referred.
To do this, you can check the web server's access log.
In this command, the first grep
gets the requests performed by wget. The access request contains a User Agent string which is used by grep to identify the software agent performing the requests.
grep
searches for the partial url of the broken link.
The output of the execution of this command looks like this:
In this article, you learned how to identify broken links on your website and how to identify what pages are refered those broken links.
With this information, you will be able to correct those references in your website.


|
Don't
Say You Love Me
(M2M) |
|
Verse
1:
Got introduced to you by a friend You were cute and all that, baby you set the trend Yes you did oh The next thing I know we're down at the cinema We're sitting there, you said you love me What's that about? Verse 2: You're moving too fast, I don't understand you I'm not ready yet, baby I can't pretend No I can't The best I can do is tell you to talk to me It's possible, eventual Love will find a way Love will find a way...   Baby don't say love me, baby Give me some time... CHORUS (repeat until fade out) |


U2 Honour Australian Firefighters Battling Blazes Down Under: ‘We Salute You’
by Brent FurdykBono, The Edge and the other members of U2 happened to run into some Australian firefighters at the Melbourne airport, and sent a big shoutout to them and the others who are risking their lives battling the wildfires that have devastated the country in recent weeks.
“An honour to run into a couple of @cfavic heroes at Melbourne airport today…” the members of the band wrote in a tweet issued on Tuesday, accompanying a photo of the Irish rockers posing in front of a plane surrounded by dozens of firefighters.
“To all the firefighters working so hard across Australia – we salute you,” the band added. “Bono, The Edge, Adam and Larry.”
According to the band’s tour schedule, they were on their way to Adelaide for a Tuesday-night performance, the latest stop on their worldwide Joshua Tree tour, with Noel Gallagher and the High Flying Birds serving as support act.
“It’s only taken me 30 years to learn how to sing these songs. And it’s great to be able to say that I’ve finally caught up with the band,” said Bono of the band’s new tour, in which they perform their 1conic 1987 album The Joshua Tree in its entirety.
“Our audience has given The Joshua Tree a whole new life on this tour,” he added. “Doing these shows has been very special for us, a lot of emotion… From the despair of how relevant some of the dark songs still are, to the joy, pure fun of the staging… it’s quite a ride. And now we get to do it all over again. Auckland, Brisbane, Melbourne, Adelaide, Perth, Sydney, Tokyo, Singapore, Seoul, Mumbai… We’re coming for you.”


This page is under development We hope to have it ready soon Chris Paulson-Ellis |<EMAIL_ADDRESS>| Last updated: 25 October 1995 | © Crown Copyright 1995


This is a port to JavaScript of some of Mike Chmutov's Java code for the Affine Matrix Ball Construction algorithm. The original code can be found here: https://github.com/mchmutov/AMBC. The drawing code and the code to run the webpages are borrowed from the pages on my site: https://devragj.github.io/. Two papers describing the Affine Matrix Ball Construction can be found at these links: Matrix-Ball Construction of affine Robinson-Schensted correspondence, Monodromy in Kazhdan-Lusztig cells in affine type A. The second paper has a more condensed description of the algorithm.
The first page linked to below runs the AMBC algorithm. The second page runs the algorithm in reverse.
Please contact me at devra.johnson at verizon.net.


JSCoord is a simple coordinate library for Javascript. It features basic mutation methods for X, Y and Z and also provides a "Map" feature, which means you can limit the size of each Set. Modify each axis value with the built-in methods or easily add custom methods with a simple API.
new JSCoord([x, y, z])
Create a new JSCoord Set.
let coords = new JSCoord([100, 100, 100])
.x
, .y
, .z
Get X, Y or Z value. Do NOT modify these variables, they can break your coordinate set.
coords.x
.incrX(amount)
, .incrY(amount)
, .incrZ(amount)
Increments the specified axis by amount
. If amount
parameter is not provided, increments by 1.
coords.incrX(10)
.decrX(amount)
, .frcrY(amount)
, .decrZ(amount)
Decrements the specified axis by amount
. If amount
parameter is not provided, decrements by 1.
coords.decrX(10)
.setX(amount)
, .setY(amount)
, .setZ(amount)
Sets the axis value to val
.
coords.setX(20)
.invX()
, .invY()
, .invZ()
"Inverts" the number, so it becomes its negative/positive version. 3 becomes -3, -3 becomes 3 and so on.
coords.invX()
.setMap(x, y, z)
Sets the maximum range for each axis. It sets the maximum to the provided number and the minimum to the negative of the provided number. Other methods will fail if they are out of range. This will fail if axis is above limit already.
coords.setMap(100, 100, 100)
.mapJSON
Get Map as Object.
coords.mapJSON // {x: 20, y: 0, z: 0}
.mapArray
Get Map as Array.
coords.mapArray // [x, y, z]
.JSON
Returns the X, Y and Z axis values as an object.
coords.JSON // {x: 20, y: 0, z: 0}
.array
Returns the X, Y and Z axis values as an array. .array[0]
contains the X axis, .array[1]
the Y axis and .array()[2]
the Z axis.
coords.array // [x, y, z]
.reset()
Resets all of the X, Y and Z values to 0.
coords.reset()
.rlt(x, y, z)
Resets all of the X, Y and Z values to 0.
coords.rlt(10, 20, 30)
.rltJSON
Get the relativity set as an object.
coords.rltJSON // {x: 1, y: 2, z: 3}
.rltArray
Get the relativity set as an array.
coords.rltArray // [x, y, z]
.getRltAngle()
Get the angle of 2 coordinate set values. set
is the 2 axies which should be used for calculation, can be xy
, yz
or zx
.
coords.getRltAngle("xy")
new CoordChunk(maxLength)
Create a new Coordinate Chunk.
let chunk = new CoordChunk(10)
.sets
Array in which Sets are stored. Do NOT modify this variable, it can break your coordinate set.
chunk.sets
.limit
Maximum length of chunk. Do NOT modify this variable, it can break your coordinate set.
chunk.limit
.addSet(coords)
Add a Set to the Chunk. coords
can be an Array with coordinate values ([x, y, z])
or a JSCoord instance. You can not have 2 of the same coordinate sets in the same chunk.
coords.addSet(new JSCoord([100, 100, 100])
.getSet(coords)
Find a Set by coordinates. Throws if Set could not be found.
coords.getSet([100, 100, 100])
.delSet(coords)
Delete a Set from the Chunk. coords
can be an Array with coordinate values or a JSCoord instance. Throws if Set could not be found.
coords.delSet([100, 100, 100])


Eat Wise is a web application intended to empower young professionals in making informed decisions towards achieving a healthier diet. We have more choices and more temptations than ever before. As fast-food chains continually find ways to exploit the human cravings for fats and sweets, Eat-Wise is dedicated to equip consumers with tools and strategies in taking charge of their choices.
Eat Wise app features the ability to populate a list of recipes for the user to make at home, and also to populate a list of restaurant choices in your city. The significance of the generated lists is that they are based on custom user preferences in the categories of cuisine, intolerances, dietary restrictions and meal time. Users are given accurate, precise and real-time information to achieve a more wholesome diet. Future capabilities to give users further customization and guidance can be easily implemented due to the modular programming in our app design.
Users are given accurate, precise and real-time information to achieve a more wholesome diet.
The MVP of Eat Wise provides tremendous value as a tool to simplify the decision making process for choosing what to eat. Our filtering process effortlessly guides you to quickly narrow down your choices. The results generated are detailed with ingredients lists and full instructions for recipes while restaurant search results provide information for rating, location and cuisine.
CSS / SASS / Content / JS / Firebase / Project Manager / QA Testing / Mobile Responsiveness
1. What’s your favourite food?
Burritos- any kind.
2. Tell us something that we wouldn’t know about yourself?
My boxing name is Crusher
3. If you could have a super power what would that be?
Infinite energy. I’m always tired.
4. When you’re not working, where will we find you?
At home cuddling with Ivanhoe , (the cat), and watching British comedy panel shows on YouTube.
5. Last but not least, the million dollar question - pineapple on pizza: Yes/No
Sorry, no.
JS / API / User input data / Sketch of final product
1. What’s your favourite food?
Cheese
2. Tell us something that we wouldn’t know about yourself?
I'm a pretty avid poker player
3. If you could have a super power what would that be?
Invulnerability
4. When you’re not working, where will we find you?
You'll probably find me on my PC at home. I just love computers, the internet, video games, you name it!
5. Last but not least, the million dollar question - pineapple on pizza: Yes/No
Yes. All day. Every day. If you disagree, get at me.
JS / API / User input data
1. What’s your favourite food?
Cold skin noodles (liangpi) and pork burgers (roujiamo)
2. Tell us something that we wouldn’t know about yourself?
Studied at 3 different universities
3. If you could have a super power what would that be?
Wolverine from the X-Men
4. When you’re not working, where will we find you?
Spending time with family/Playing video games
5. Last but not least, the million dollar question - pineapple on pizza: Yes/No
Yes
HTML / CSS / Design User Flow / Sketch of final project
1. What’s your favourite food?
Fried chicken
2. Tell us something that we wouldn’t know about yourself?
I am an avid marathon runner
3. If you could have a super power what would that be?
Healing
4. When you’re not working, where will we find you?
Researching my next travel adventure or hiking somewhere
5. Last but not least, the million dollar question - pineapple on pizza: Yes/No
Yes, 100%


Quote: Posted 05/03/05 01:56:02 (GMT) -- avado
(i know tumble is very popular, but imho if your pc has a dex of 8.. is tumble really a choice for skills?)
peace
Edited By Stravinsky00 on 05/03/05 04:27
It's my druid dragon build that I recently reposted with CoT


Filling in something on behalf of someone else
Standard pattern
Use this when either:
- the user legally needs to declare if they're completing the transaction on behalf of someone else - not solely to gather information for the business ('MI')
- there's data to show that incorrect information is being put into the transaction by third parties because they mistake themselves for the end user
Research notes
User research for Carer's Allowance found that asking people early in the transaction if they were completing it on behalf of the carer stopped them from mistakenly entering their own details later in the form.
Are you the carer?
View code snippet
Content notes
This content should be placed as early as possible in the service. In Carer's Allowance these details were originally entered at the end of the service as part of the legal declaration. By this time it had no utility in helping people avoid errors in filling in the form.
Avoid the term 'third party' and make the question specific to the activity (eg, 'person doing the caring' rather than 'applicant'). Some carers are still unclear as to whether it's they or the person they care for who is awarded Carer's Allowance, regardless of who is eventually paid it.
Progressive disclosure should be used for third party applicants to remind them to fill in the form from here on as the applicant. Such content should never be presented to people applying for themselves as it can cause confusion.


QuantConnect provides split and merger data on all US stocks back to January 1st, 1998. When a symbol is requested with prior splits/mergers, we automatically pass the previous symbol data into your algorithm. You can monitor the split/merger events using the built-in event handlers.
// Manually adding inside your Initialize() method: public override void Initialize() { AddEquity("IBM", Resolution.Minute); } // v2.0 Technique: Dedicated Event handler: public void OnData(Splits data) { //access Split objects via Splits dictionary data["IBM"].SplitFactor // e.g. 1 -> 2 split-> split factor of 2. } // v3.0 Technique: Accessing via Slice object: public override void OnData(Slice data) { data.Splits["IBM"].SplitFactor; }
# Splits data is accessible via the Splits property in the slice: def OnData(self, data): # e.g. 1 -> 2 split-> split factor of 2. data.Splits["IBM"].SplitFactor


Car engine covers, brake calipers, rims, hard hats, controllers, cases, emblems, motor vehicle parts, and just about anything plastic or metal.
Our process adheres the patterns of your choice with a manufactured finish in your choice of matte or gloss.
Due to popular demand, we are in the process of setting up a coating facility.
Owner & Operator
7171 Torbram Road - Unit 4
Mississauga ON
Canada L4T3W4


All form fields are required.
Keep hitting the shuffle button until you win.
{{index}}. {{meeting.name}} {{meeting.time_formatted}} {{meeting.day | dayName}}
We’ll start simple with tabs. For every tab, there must be an accompanying tab pane. The showing/hiding is achieved by adding/removing a class “active” to both the tab and the tab pane, so that’s what Vue will need to handle.

Tab 1

Tab 2

Pane 1

Pane 2


from stream2py.source_reader import SourceReader
import pytest
import random
import time
import operator
[docs]class RandomFloatSource(SourceReader):
"""
A simple example of source reader based on a random float generator
"""
def __init__(self, seed=1):
random.seed(seed)
self.seed = seed
self.open_count = 0
[docs] def open(self):
self.open_count += 1
self.random_gen = iter(random.random, 2)
def read(self):
value = next(self.random_gen)
return value
[docs] def close(self):
del self.random_gen
@property
def info(self):
return dict(seed=self.seed, open_count=self.open_count)
[docs] def key(self, data):
return data
[docs]class TenthSecondCounter(SourceReader):
"""
Example SourceReader
Start counting when as soon as you construct
"""
def __init__(self, starting_count=0):
self._init_kwargs = {
k: v for k, v in locals().items() if k not in ('self', '__class__')
}
self.starting_count = starting_count
self._count = 0
self._start_time = 0
self.open_count = 0
[docs] def open(self):
"""Reset params for first read"""
self.open_count += 1
self._count = self.starting_count
self._start_time = int(time.time() * 10)
@property
def info(self):
_info = self._init_kwargs.copy()
_info.update(name=self.__class__.__name__, bt=self._start_time * 100000)
return _info
[docs] def close(self):
"""Not needed but satisfies the abstract"""
def read(self):
next_count = self._count
next_time = self._start_time + self._count
now = time.time() * 10
if now >= next_time:
self._count += 1
return next_time * 100000, next_count # (timestamp_us, count)
return None
key = operator.itemgetter(0) # (timestamp_us, count) -> timestamp_us
# note that the class to test must have the additional attribute open_count for the test to pass
@pytest.mark.parametrize(
'n_reads,n_open_close,source_reader_class,class_params',
[
(1, 10, RandomFloatSource, {'seed': 1}),
(5, 100, RandomFloatSource, {'seed': 1}),
(10, 10, RandomFloatSource, {'seed': 1}),
(10, 10, TenthSecondCounter, dict()),
],
)
def test_source_readers_open_close(
n_reads, n_open_close, source_reader_class, class_params
):
sc = source_reader_class(**class_params)
for open_number in range(n_open_close):
with sc:
# check that the count increments
assert sc.open_count == open_number + 1
random_numbers = [sc.read() for i in range(n_reads)]
# check that each read yielding one float
assert len(random_numbers) == n_reads
# check that after closing, the count of open did not increment
assert sc.open_count == open_number + 1
# checking access to the info
assert isinstance(sc.info, dict)


--- layout: post title: Advanced Techniques - Part 2 subtitle: Series: Leveling up CSS with Sass categories: - series tags: [Sass] published: true ---
Since the last Sass article in this series was published over a year ago, here is a quick refresher. We covered the setup of Sass apps including: Guard, Compass, Prepross, and Scout. There was also info on variables and rule nesting. And we talked about why Sass is so awesome. In this article we are going to go through some more advanced techniques specifically: Functions, Mixins, Placeholders, Parent selector, Calculations, and conditional statements.
At its core, the goal of Sass is to avoid repetitive CSS styles. One efficient Sass practice is the use of variables which allow for a single location, or source of truth, on specific styles or values. These variables are easily reusable across multiple files. The next step to removing repetition in your styles is through the use of functions, mixins, and placeholders. These techniques allow you to use large blocks of code without duplicating it.
Before we get into the differences lets get into a quick review of what each one is. If you have ever used a backend programming language like php or rails, then you already know the function of functions. If this is a new concept for you, then a function basically performs an operation and then explicitly returns a value for usage. Think of it like the addition button on a calculator. Mixins are very similar to functions except they do not have to explicitly return a value. They can instead return Sass styles directly to the file. Essentially a Mixin can output multiple styles within a selector while a function can only return a single value. Placeholders are a little more tricky. A placeholder provides a style or group of styles that can be extended or included into other styles. Let's take some time and break down each of these further.
As I mentioned before a function must explicitly return a value. Functions use the keyword @return
to define what value is being output. When building a function a good rule to follow is that it should only perform a single operation or action. An example would be calculating a letter-spacing, a single CSS value, from a Photoshop design. A function that is specific can be used across more projects. Functions can also optionally take arguments as seen below ($value)
. These instance variables can then be used within the function. Functions are called just by using the declared function name in this instance letter-spacing(50)
.
In the function above I have also used conditional statements in the form of @if
, @else if
, and @else
. These work in the same manner as other languages and allow for more functionality.
Additionally, the function uses standard operators to perform math calculations. If you look at this line of code @return ($value / 1000) * 1em;
it follows the order of operations with the parenthesis to find the correct letter-spacing value. The * 1em
at the end of the line is a trick to convert a non-unit value into a unit of your choice.
Mixins share a very similiar responsibility as functions do. They essentially could be used the same way, e.g. you could build a Mixin that outputs single value. The difference here is that Mixins don't use the @return
keyword and Mixins can directly output styles when the are included into your Sass.
Additionally like functions, Mixins can also accept arguments, which allow for some added functionality. To call a Mixin you use the @include
keyword and then the mixin name. To declare a Mixin you use the @mixin
keyword followed by any arguments.
There is an important line in the pseudo-content Mixin that I glossed over.  I've actually utilized two Sass features on the same line: string interpolation and the parent selector.
String Interpolation is a method of outputting a value or variable so that Sass doesn't perform any operations on it. This is useful for inputting names into selectors as I have done above. The portion of the code #{$pseudo}
says output the $pseudo
variable directly at this location. So #{$pseudo} {
is equal to before {
. Since the original variable for $pseudo was a string, using string interpolation removes this formatting allowing us to use it as a selector.
The parent selector is the first part of the line &:
which tells the proceeding selector that it is the child of the current selector. Essentially, .sidebar
is the parent selector so calling &:#{$pseudo}
says that the new selector is the child of .sidebar
and has a string interpolated variable as its name. The parent selector is not limiting to pseudo classes, you can also use &.some-class-name
or &:hover
for child classes and child pseudo selectors respectively.
Placeholders are basically super classes in CSS. Unlike, Mixins and Functions, placeholders do not allow for arguments to be passed in. They do directly output styles similar to Mixins. Placeholders are declared by using a %
symbol and are called using the @extend
keyword. Take a look at the below example.
We could now declare html elements with the class of .color-red
to make their font color red. This could then be reused on any number of elements. The downside is that we need to actually place this into the html. Sass solves this issue through Placeholders. Additionally by using Placeholders all the styles that extend them will be placed together into a single rule.
As you can see above the placeholder combines all the styles using the current placeholder into a single rule. This drastically reduces the amount of CSS your webpage will be loading. Also you no longer have to keep adding classes to the html as you can now just write Sass. There are some bugs with using placeholder and media queries but the newer version of Sass should fix these.
I have talked about the differences of Functions, Mixins, and Placeholders. We have seen the power in using parent selectors and the utility of string interpolation. We briefly went over math calculations and how they follow the order of operations like other programming languages. In my next article we will step away from style techniques and focus on project and file organization.


Profile.
Casandra McDonald is an NN/g Master Certified UX / UI Designer and Front-End Web Engineer with over 10+ years of experience based in New York City. Her goal is to help businesses grow by designing and developing web and native applications. She currently runs her consulting firm as a designer and developer for clients based in NYC, specializing in the finance and e-commerce industries.
As a UX Designer, I believe in user-centric design and enforce those principles throughout the design process. I follow the double diamond framework when starting any UX project: Discover, Design, Develop, Deliver. I work with companies on business strategy, perform competitive analysis, conduct user interviews, contextual inquiries, and usability testing. I also develop user personas, user flows, and feature prioritization with MVP focus. I possess a keen understanding of market dynamics that impact the successful launch of applications.
As a UI Designer, I follow all up-to-date HCI and W3C guidelines for accessibly on desktop and mobile applications. I would describe my work as clean, beautiful, and aesthetically pleasing. I conform to a "less is more" methodology and apply that approach to reduce cognitive friction throughout my design deliverables. I create sketches and low, mid, and high fidelity mockups using Adobe XD and am well-versed in creating highly detailed interactive prototypes with custom animations using XD and Principle. I frequently work with development teams to ensure pixel-perfect asset delivery and create follow-up documentation and style guides.
As a Front-End Engineer, my goal is to write clean, semantic, accessible code. I work with HTML5, CSS3, JavaScript, and jQuery, and PHP. I have hand-coded over 200+ responsive websites and have experience building apps and APIs with JS, Firebase, Node.js, Express, and Heroku. I am currently in school at Columbia University Software Engineering Bootcamp until Summer 2021 to expand my existing skillset in the Full Stack Development realm.
Featured Work.
Video Game Tracking app using Front end, SQL, & Express & RAWG API.
Star Wars Personality Test built in HTML, CSS, & JS. Uses GIPHY and SWAPI.
A Star Wars Password Generator built in JS.
Weather App built in JS that uses OpenWeatherApi.
Happy Coding Quiz Project built in HTML, CSS, JS.
Resume.
Click the button to download my resume! :)
Contact.
Here are my details to get in touch.
Email: Cas@casmcdonald.com


This is Colonial One, your flag-blog on the way to the future. The universe is huge and non-deterministic so expect some random weirdness along the way, including but not limited to: functional programming, environmental ethics, network science and Renaissance stuffed crocodiles hung on the church ceilings.


Lighre229.github.io
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Page 1: Installation Instructions (once-per-hour for the 315 MHz model), or according to local standards. Since messages transmitted by the MCT-101, -102 and -104 might collide with other messages sent by other PowerCode transmitters, a smart anti-collision transmission sequence Increase your knowledge and understanding of photoraphy, get tips and advice from pros and be inspired, watch video tutorials, learn new techniques, find out about classes and workshops Control Keyfobs MCT-101/102/104: One, two and four button hand-held wireless transmitters designed for emergency and control applications. Visonic is an international developer and manufacturer of high-quality wireless home security products and systems. PDF User s Guide - WF-3620/WF-3640.
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Recently I’ve heard that Heroku allows deployment of Java applications in it’s Cedar stack. Having no real software idea I decided I’ll give it a try and just configure SOMETHING to work on Heroku.
I have some kind of crush on ReST (I still want to learn it and practice it) so I’ve decided my first application will be a simple hello world using Jersey (JAX-RS implementation). So I started a project on GitHub and started setting up Heroku CLI.
Setting up Heroku CLI
Heroku is now easy to set up. I remember when it required Ruby env and my first encounter with Ruby was not so great (there was no installer of any sort so it was all manual – and I’m lazy) so I gave up on Heroku back then. But now installing it is a breeze – simply go to Heroku Toolbelt and download version for your platform. I have now set it up both on Linux Mint and Windows 7 and it works great.
Setting up project for Heroku
My project is called recaps – it’s supposed to be yet another ticket management system. But that’s irrelevant for now. The most important thing is that in order for Heroku to discover that our application is a Java application pom.xml file must be present. That’s because Heroku uses Maven 3 to build Java applications.
So to actually begin any work with Heroku you need a simple pom.xml file. In my case I’ve added a separate module for the application, so my main pom looks like this:
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Then there is the web module, just for the sake of splitting projects:
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My first attempt at running my sample project concentrated on setting up Jersey. After checking out docs I decided I’ll use Grizzly2 HTTP server just because it’s very easy to set up. I’ve basically pasted the docs tutorial into main Main class. There were some necessary differences, because for example port of the server is dynamically assigned by Heroku. So after very few changes, the resulting Main class looks like this:
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That starts up the server and registers some resources with it.
Some Grizzly tricks
Firstly, the GrizzlyServerFactory.createHttpServer method accepts an URI which has to begin witch schema name – in this case http://. Then it has to specify host name, which at first I set up to the application name on herokuapp.com. This didn’t work, but Heroku told me nicely about it: there is a notification in logs that server should bind to <IP_ADDRESS>, so I changed the URI to http://<IP_ADDRESS>.
Secondly, the Jersey example waited for a key press to terminate the server. Unfortunately Heroku printed a message which was then passed to the application somehow and the server was terminated. To resolve this, I wrapped the System.in.read() in an endless while loop.
This of course is not the best solution, but it worked, or so it seemed. After a few hours I checked the logs of the application and they said that the application went from up to down. So I’ve decided to switch from Grizzly to Jetty, but that’s out of topic for this post :)
Before pushing all this to Heroku I also added a Procfile:
1
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After pushing to Heroku the application was build and started, and request to http://growing-dawn-9158.herokuapp.com/helloworld produced some output (in this case a simple ‘Message’ message). Job well done :)
Mistakes I’ve made and learnt from
Firstly, I forgot to add the Maven Dependency plugin, but I resolved that one before pushing to Heroku. Without it configured I couldn’t add dependencies to classpath, which in turn produced ClassNotFound exceptions. It didn’t occur to me at first it was required, but then I looked at Heroku example and fixed it easily.
Secondly, I didn’t know that web dynos time out. After successful deployment I was sure the application was running, but because of time out, logs said the application went down. Because I wasn’t aware of the fact that web dynos time out I suspected that Grizzly was simply interrupted somehow so I’ve decided to move to Jetty. But it happened to Jetty implementation too, so I started digging and I found relevant information :)
Summary
I think that Heroku is great. It’s free Java hosting, something that is NOT popular and yet they did it and it works quite nicely. I once tried Google App Engine, but the experience wasn’t great (mind you it was some long time ago) so I’ve decided to give Heroku a chance and because it was actually quite simple to set up the application I think I’ll stick to it for a while and play with the platform – look at all those plugins :)


Afterword#
Why Python?#
Advantages of Python#
The primary implementation language of Sage is Python (see [Py]), though code that must be fast is implemented in a compiled language. Python has several advantages:
Object saving is well-supported in Python. There is extensive support in Python for saving (nearly) arbitrary objects to disk files or a database.
Excellent support for documentation of functions and packages in the source code, including automatic extraction of documentation and automatic testing of all examples. The examples are automatically tested regularly and guaranteed to work as indicated.
Memory management: Python now has a well thought out and robust memory manager and garbage collector that correctly deals with circular references, and allows for local variables in files.
Python has many packages available now that might be of great interest to users of Sage: numerical analysis and linear algebra, 2D and 3D visualization, networking (for distributed computations and servers, e.g., via twisted), database support, etc.
Portability: Python is easy to compile from source on most platforms in minutes.
Exception handling: Python has a sophisticated and well thought out system of exception handling, whereby programs gracefully recover even if errors occur in code they call.
Debugger: Python includes a debugger, so when code fails for some reason, the user can access an extensive stack trace, inspect the state of all relevant variables, and move up and down the stack.
Profiler: There is a Python profiler, which runs code and creates a report detailing how many times and for how long each function was called.
A Language: Instead of writing a new language for mathematics as was done for Magma, Maple, Mathematica, Matlab, GP/PARI, GAP, Macaulay 2, Simath, etc., we use the Python language, which is a popular computer language that is being actively developed and optimized by hundreds of skilled software engineers. Python is a major open-source success story with a mature development process (see [PyDev]).
The Pre-Parser: Differences between Sage and Python#
Some mathematical aspects of Python can be confusing, so Sage behaves differently from Python in several ways.
Notation for exponentiation:
**
versus^
. In Python,^
means “xor”, not exponentiation, so in Python we have>>> 2^8 10 >>> 3^2 1 >>> 3**2 9
This use of
^
may appear odd, and it is inefficient for pure math research, since the “exclusive or” function is rarely used. For convenience, Sage pre-parses all command lines before passing them to Python, replacing instances of^
that are not in strings with**
:sage: 2^8 256 sage: 3^2 9 sage: "3^2" '3^2'
The bitwise xor operator in Sage is
^^
. This also works for the inplace operator^^=
:sage: 3^^2 1 sage: a = 2 sage: a ^^= 8 sage: a 10
Integer division: The Python expression
2/3
does not behave the way mathematicians might expect. In Python2, ifm
andn
are ints, thenm/n
is also an int, namely the quotient ofm
divided byn
. Therefore2/3=0
. In Python3,2/3
returns the floating point number0.6666...
. In both Python2 and Python3,//
is the Euclidean division and2//3
returns0
.We deal with this in the Sage interpreter, by wrapping integer literals in
Integer( )
and making division a constructor for rational numbers. For example:sage: 2/3 2/3 sage: (2/3).parent() Rational Field sage: 2//3 0 sage: int(2)/int(3) # not tested, python2 0
Long integers: Python has native support for arbitrary precision integers, in addition to C-int’s. These are significantly slower than what GMP provides, and have the property that they print with an
L
at the end to distinguish them from int’s (and this won’t change any time soon). Sage implements arbitrary precision integers using the GMP C-library, and these print without anL
.
Rather than modifying the Python interpreter (as some people have done for internal projects), we use the Python language exactly as is, and write a pre-parser for IPython so that the command line behavior of IPython is what a mathematician expects. This means any existing Python code can be used in Sage. However, one must still obey the standard Python rules when writing packages that will be imported into Sage.
(To install a Python library, for example that you have found on
the Internet, follow the directions, but run sage -python
instead of python
. Very often this means typing
sage -python setup.py install
.)
I would like to contribute somehow. How can I?#
If you would like to contribute to Sage, your help will be greatly appreciated! It can range from substantial code contributions to adding to the Sage documentation to reporting bugs.
Browse the Sage web page for information for developers; among
other things, you can find a long list of Sage-related projects
ordered by priority and category. The
Sage Developer’s Guide
has helpful information, as well, and you can also check out the
sage-devel
Google group.
How do I reference Sage?#
If you write a paper using Sage, please reference computations done with Sage by including
[Sage] SageMath, the Sage Mathematics Software System (Version 8.7),
The Sage Developers, 2019, https://www.sagemath.org.
in your bibliography (replacing 8.7 with the version of Sage you
used). Moreover, please attempt to track down what components of Sage
are used for your computation, e.g., PARI?, GAP?, Singular? Maxima?
and also cite those systems. If you are in doubt about what
software your computation uses, feel free to ask on the
sage-devel
Google group. See Univariate Polynomials for further
discussion of this point.
If you happen to have just read straight through this tutorial, and
have some sense of how long it took you, please let us know on the
sage-devel
Google group.
Have fun with Sage!


Ghostbusters: Afterlife's First Trailer Ain't Afraid of Leaning into Legacy
by Stephen GerdingThe Ghostbusters franchise rises from the dead once again with the release of the first teaser trailer for the third film in the franchise - Ghostbusters: Afterlife.
Paul Rudd, Finn Wolfhard and more join the Ghostbusters family in the teaser, which hints at the film's plot, without giving too much story away (aside from Wolfhard apparently playing Egon's grandson). What is clear is that the film, which takes place in the same universe as the original movies rather than the reality introduced by the ill-received reboot in 2015, follows in its predecessors' footsteps, merging humor, action and the supernatural.
From director Jason Reitman and producer Ivan Reitman, comes the next chapter in the original Ghostbusters universe. In Ghostbusters: Afterlife, when a single mom and her two kids arrive in a small town, they begin to discover their connection to the original Ghostbusters and the secret legacy their grandfather left behind. The film is written by Jason Reitman & Gil Kenan.
Ghostbusters: Afterlife is directed by Jason Reitman, who also co-wrote the film with Gil Kenan. Starring Finn Wolfhard, Carrie Coon, Paul Rudd and Mckenna Grace, the film arrives in theaters July 10, 2020.
https://schema.orgBreadcrumbListListItem1Homehttps://www.cbr.com/ListItem2Movieshttps://www.cbr.com/category/movies/ListItem3Movie Newshttps://www.cbr.com/category/movies/news-movies/ListItem4Ghostbusters: Afterlife's First Trailer Ain't Afraid of Leaning into Legacyhttps://www.cbr.com/ghostbusters-afterlife-first-trailer/


Although the cardiovascular system is inextricably linked to blood, cardiology is relatively unconcerned with hematology and its diseases. Some obvious exceptions that affect the function of the heart would be blood tests (electrolyte disturbances, troponins), decreased oxygen carrying capacity (anemia, hypovolemic shock), and coagulopathies.
All cardiologists study the disorders of the heart, but the study of adult and child heart disorders are through different training pathways. Therefore, an adult cardiologist (often simply called "cardiologist") is inadequately trained to take care of children, and pediatric cardiologists are inadequately trained to take care of adults. The surgical aspects are not included in cardiology and are in the domain of cardiothoracic surgery. For example, coronary artery bypass surgery (CABG), cardiopulmonary bypass and valve replacement are surgical procedures performed by surgeons, not cardiologists. However the insertion of stents, pacemakers are performed by cardiologists.
for more details on cardiology
Slide down to watch some videos realted to the topic.


Sean Spicer 'humbled' by support of 'DWTS' fans, applauds Trump Jr. for 'owning' liberal 'View' hosts
by Julia MustoFormer White House Press Secretary Sean Spicer said Thursday night that he is truly "humbled" by the support he has received, as he tangos his way into the quarter-finals of ABC's "Dancing With the Stars."
Appearing on "Fox News @ Night" with host Shannon Bream, Spicer said he "can't believe" he has lasted this long on the show.
"I'm truly humbled that people are saying 'we want you to continue on' when I'm clearly not the best guy. I am trying to make as much progress as possible every week, but I get it," he said, lamenting the backlash from some over his staying power despite dismal reviews from the show's judges.
"If you're upset with that, they should watch another show or the judges should change the format. But, the reality is is that it's been this way for 28 seasons," he said, adding that the best dancer is not always the winner.
He acknowledged his dancing shortfalls but explained that he has taken the process seriously and the judges have credited him for "making progress" each week.
Spicer was also asked about Donald Trump Jr.'s explosive appearance on "The View," praising the way the president's son handled the situation.
CLICK HERE FOR THE FOX NEWS APP
"Don Trump went in there to the liberal lion's den and owned them," he told Bream, incredulously.
"He kind of took it right to them and owned them in a way that no one has on that show before," Spicer said.
"The thing that's so interesting is, that's the nexus of his book. He talks about how these guys have such a double standard."


Directory used for the tutorials:
cd /home/training/ngs_course/calling
Enter in the genome directory:
cd /home/training/ngs_course/reference_genome
Use SAMTools
to generate the fasta file index:
samtools faidx f000_chr21_ref_genome_sequence.fa
This creates a file called samtools faidx f000_chr21_ref_genome_sequence.fa.fai, with one record per line for each of the contigs in the FASTA reference file.
Generate the sequence dictionary using Picard
:
java -jar ~/soft/picard-tools/picard.jar CreateSequenceDictionary \
REFERENCE=f000_chr21_ref_genome_sequence.fa \
OUTPUT=f000_chr21_ref_genome_sequence.dict
Go to the example1 folder:
cd /home/training/ngs_course/calling/example_0
We must sort and index the BAM file before processing it with Picard and GATK. To sort the bam file we use samtools
samtools sort 000-dna_chr21_100_hq_pe.bam 001-dna_chr21_100_hq_pe_sorted
Index the BAM file:
samtools index 001-dna_chr21_100_hq_pe_sorted.bam
Run the following Picard command to mark duplicates:
java -jar ~/soft/picard-tools/picard.jar MarkDuplicates \
INPUT=001-dna_chr21_100_hq_pe_sorted.bam \
OUTPUT=002-dna_chr21_100_hq_pe_sorted_noDup.bam \
METRICS_FILE=002-metrics.txt
This creates a sorted BAM file called 002-dna_chr21_100_hq_pe_sorted_noDup.bam
with the same content as the input file, except that any duplicate reads are marked as such. It also produces a metrics file called metrics.txt
.
QUESTION: How many reads are removed as duplicates from the files (hint view the on-screen output from the two commands)?
Run the following Picard command to index the new BAM file:
java -jar ~/soft/picard-tools/picard.jar BuildBamIndex \
INPUT=002-dna_chr21_100_hq_pe_sorted_noDup.bam
There are 2 steps to the realignment process:
First, create a target list of intervals which need to be realigned
java -jar ~/soft/GATK/GenomeAnalysisTK.jar \
-T RealignerTargetCreator \
-R ../../reference_genome/f000_chr21_ref_genome_sequence.fa \
-I 002-dna_chr21_100_hq_pe_sorted_noDup.bam \
-o 003-indelRealigner.intervals
Second, perform realignment of the target intervals
java -jar ~/soft/GATK/GenomeAnalysisTK.jar \
-T IndelRealigner \
-R ../../reference_genome/f000_chr21_ref_genome_sequence.fa \
-I 002-dna_chr21_100_hq_pe_sorted_noDup.bam \
-targetIntervals 003-indelRealigner.intervals \
-o 003-dna_chr21_100_hq_pe_sorted_noDup_realigned.bam
This creates a file called 003-dna_chr21_100_hq_pe_sorted_noDup_realigned.bam
containing all the original reads, but with better local alignments in the regions that were realigned.
 These tables contain the covariation data that will be used in a later step to recalibrate the base qualities of your sequence data.
It is important that you provide the program with a set of known sites, otherwise it will refuse to run. The known sites are used to build the covariation model and estimate empirical base qualities. For details on what to do if there are no known sites available for your organism of study, please see the online GATK documentation.
Second, apply the recalibration to your sequence data
java -jar ~/soft/GATK/GenomeAnalysisTK.jar \
-T PrintReads \
-R ../../reference_genome/f000_chr21_ref_genome_sequence.fa \
-I 003-dna_chr21_100_hq_pe_sorted_noDup_realigned.bam \
-BQSR 004-recalibration_data.table \
-o 004-dna_chr21_100_hq_pe_sorted_noDup_realigned_recalibrated.bam
This creates a file called 004-dna_chr21_100_hq_pe_sorted_noDup_realigned_recalibrated.bam
containing all the original reads, but now with exquisitely accurate base substitution, insertion and deletion quality scores. By default, the original quality scores are discarded in order to keep the file size down. However, you have the option to retain them by adding the flag –emit_original_quals
to the PrintReads
command, in which case the original qualities will also be written in the file, tagged OQ.
SNPs and INDELS are called using a single instruction.
java -jar ~/soft/GATK/GenomeAnalysisTK.jar \
-T HaplotypeCaller \
-R ../../reference_genome/f000_chr21_ref_genome_sequence.fa \
-I 004-dna_chr21_100_hq_pe_sorted_noDup_realigned_recalibrated.bam \
-o 005-dna_chr21_100_he_pe.vcf
Once we have called the variants, we might be interested in filtering out some according to our confidence in them. Some of the most basic filters consist of identifying variants with low calling quality or a low number of reads supporting the variant. There are many programs that can be used to filter VCFs. Here we are going to use bcftools from Samtools to preform a basic filtering.
bcftools filter -s LowQual -e 'QUAL<20 | DP<3' 005-dna_chr21_100_he_pe.vcf > 006-dna_chr21_100_he_pe_filtered.vcf
Let’s see how many variants fail to pass our filters:
grep LowQual 006-dna_chr21_100_he_pe_filtered.vcf | wc -l
And how many passed:
grep PASS 006-dna_chr21_100_he_pe_filtered.vcf | wc -l
002-dna_chr21_100_hq_pe_sorted_noDup.bam
and 003-dna_chr21_100_hq_pe_sorted_noDup_realigned.bam
)003-indelRealigner.intervals
and locate IGV in this region004-dna_chr21_100_hq_pe_sorted_noDup_realigned_recalibrated.bam
) and the generated VCF (005-dna_chr21_100_he_pe.vcf
)


You can use QGraph queries to update (add, delete, or modify) database elements. However, implementation in Proximity is currently limited to using queries to add new links to the database.
You must specify an attribute value for all new links created by queries. The attribute must currently exist in the database and all new links (defined by a single link specification) must be assigned the same value for this attribute.
Create a query that matches the desired objects and links.
In the Add-link area at the bottom of the query properties pane, click Add. The Query Editor adds a temporary, example link specification, shown in the query properties pane.
Edit the temporary, example link specification to show the correct link information. Specify the vertices corresponding to the starting and ending objects and attribute value for the new links.
Press Tab or Return.


The driving factor of a makerspace is a community around it. The best-equipped maker space that is not accessible has no potential to enforce learning and benefit the community. However, a small community-driven space with really limited resources but motivated participants can achieve amazing results.
In the beginning, it might be difficult to attract people and inform them about the space. That is why it important to find a core group of people, who can are motivated and are willing to invest their time into community building in the space. We compile several resources that could be a starting point for building the community around the space:
One of the programs we propose is titled Makerstars.
We mostly looked at building Makerspaces at schools, and we found that it is absolutely crucial to have student-led initiatives. To encourage and train a group of motivated students we propose offering positions of Makerstarts. Maker stars are encouraged to spend lots of time in the space working on their projects and helping other. They could also hold lab hours formally, where they teach and help others.
Makerstars are most likely to be students, who are excited, motivated, reliable and dedicated. Makerstars should be familiar with the mission of the makerspace. They should know how to use most of the tools in the space and most importantly, they should enjoy being in the space. Appointing Makerstars on this position should give them a sense of ownership and fulfillment, which would be a motivating factor for them to perform their best, grow personally and professionally and meet people. Please download a detailed description of Makerstars Roles and Responsibilities.
Parents support is one of the most important factors that drive student's participation in the makerspace. Makerspaces are complementary to the traditional studies and they help to stabilize the knowledge students learned in the classroom. They teach kinds of skills that universities and employers look for: leadership, ability to work independently and in the group, collaborative learning and ability to coordinate projects from the start to the end. That is why parents should understand the benefit of such spaces and support students in their learning journey.
Despite that makerspace creates a shift from teacher-centered focus in learning to a student centered experiences, the roles of teachers and experts is still extremely important for the space. Makerspace-Playbook defines several various roles teachers could take in the makerspace:


A lot of layouts place boxes
next to each other. The float
property is commonly used to
achieve this.
When elements are floated, the
height of the boxes can affect
where the following elements sit.
In this example, you can see six
paragraphs, each of which has a
width and a float property set.
The fourth paragraph does not
go across to the left hand edge
of the page as one might expect.
Rather it sits right under the
third paragraph.
The reason for this is that the
fourth paragraph has space to
start under the third paragraph,
but it cannot go any further to
the left because the second
paragraph is in the way.
Setting the height of the
paragraphs to be the same
height as the tallest paragraph
would solve this issue, but it
is rarely suited to real world
designs where the amount of
text in a paragraph or column
may vary. It is more common
to use the clear property
(discussed on the next page) to
solve this issue.
A lot of layouts place boxes
next to each other. The float
property is commonly used to
achieve this.
When elements are floated, the
height of the boxes can affect
where the following elements sit.
In this example, you can see six
paragraphs, each of which has a
width and a float property set.
The fourth paragraph does not
go across to the left hand edge
of the page as one might expect.
Rather it sits right under the
third paragraph.
The reason for this is that the
fourth paragraph has space to
start under the third paragraph,
but it cannot go any further to
the left because the second
paragraph is in the way.
Setting the height of the
paragraphs to be the same
height as the tallest paragraph
would solve this issue, but it
is rarely suited to real world
designs where the amount of
text in a paragraph or column
may vary. It is more common
to use the clear property
(discussed on the next page) to
solve this issue.
A lot of layouts place boxes
next to each other. The float
property is commonly used to
achieve this.
When elements are floated, the
height of the boxes can affect
where the following elements sit.
In this example, you can see six
paragraphs, each of which has a
width and a float property set.
The fourth paragraph does not
go across to the left hand edge
of the page as one might expect.
Rather it sits right under the
third paragraph.
The reason for this is that the
fourth paragraph has space to
start under the third paragraph,
but it cannot go any further to
the left because the second
paragraph is in the way.
Setting the height of the
paragraphs to be the same
height as the tallest paragraph
would solve this issue, but it
is rarely suited to real world
designs where the amount of
text in a paragraph or column
may vary. It is more common
to use the clear property
(discussed on the next page) to
solve this issue.
A lot of layouts place boxes
next to each other. The float
property is commonly used to
achieve this.
When elements are floated, the
height of the boxes can affect
where the following elements sit.
In this example, you can see six
paragraphs, each of which has a
width and a float property set.
The fourth paragraph does not
go across to the left hand edge
of the page as one might expect.
Rather it sits right under the
third paragraph.
The reason for this is that the
fourth paragraph has space to
start under the third paragraph,
but it cannot go any further to
the left because the second
paragraph is in the way.
Setting the height of the
paragraphs to be the same
height as the tallest paragraph
would solve this issue, but it
is rarely suited to real world
designs where the amount of
text in a paragraph or column
may vary. It is more common
to use the clear property
(discussed on the next page) to
solve this issue.


Louisiana parish government hit in cyberattack
CONVENT, La. (AP) - Parish officials in Louisiana say their computer systems were attacked by hackers that may have originated in Russia causing a precautionary shutdown of the network.
News outlets report the attack on the St. James Parish’s network was discovered Sunday, prompting a special cyber-task force and Louisiana State Police to try to stop the attempted hack.
Parish President Timmy Roussel says investigators told officials to shut down the network to stop the cyberattack from spreading. He says the network could be back up by Friday.
Roussel says the attack was similar to a phishing scheme used to lock down computers within the Tangipahoa Parish School Board in July. Prior to the Tangipahoa attack, three other public school systems were hacked causing Gov. John Bel Edwards to declare an emergency.
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