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Sick building syndrome (SBS) describes a situation whereby people experience symptoms of ill health that seem to be linked to spending time in a building, but where no specific cause can be identified.
The term building-related illness (BRI) refers to recognised diseases, often infections, e.g. Legionnaires' disease, caused by being in a building. The cause of sick building syndrome is thought to be at least in part due to changes in building and ventilation design triggered by the energy crisis in the 1970s.
One large recent study found no significant relation between most aspects of the physical work environment and symptom prevalence.1
- Greater effects were found with features of the psychosocial work environment including high job demands and low support.
- The report concluded that the physical environment of office buildings appears to be less important than features of the psychosocial work environment in explaining differences in the prevalence of symptoms.
However, sick building syndrome usually occurs in those employed in buildings containing many people who are working closely together, especially in new buildings with sealed windows.
Risk factors
Sick building syndrome (SBS) is related to both personal and environmental risk factors.2 Risk factors for sick building syndrome include:
- Poor ventilation.
- Air conditioning.
- Low humidity.
- Psychological factors such as stress or poor staff morale.
Causes
- Internal chemical contaminants: usually air pollutants.
- Initial emissions from components and fittings of a building - the 'new smell' generally dissipates over a short period, but can last years.
- Volatile organic compounds, including formaldehyde, cleaning products, manufactured plastic and wood products.
- Ozone from photocopiers and printers.
- Carbon monoxide, carbon dioxide3 and other inorganic oxides given off as combustion products in heating systems.
- Small fibres from furnishings, regularly agitated into the air by frequent sweeping. Also, asbestos in older buildings.
- Tobacco smoke.
- External contaminants: outside air entering a building.
- Vehicle exhaust fumes: from streets/underground car parks.
- Recycling of the building's own exhaust back in through poorly positioned vents/windows.
- Other external air pollution or airborne particles, e.g. pollen, moulds.4
- The prime suspect in most cases is inadequate ventilation. The factors leading to poor ventilation include insufficient outside air, poor filtration of internal and external air, contaminated duct-work, dirty heating, ventilating and air conditioning units, poor planning and placement of vents.
Presentation
General tiredness is often the most common symptom. It usually starts within a few hours of arriving at work, and improves within minutes of leaving the building. Symptoms may be worse in the winter months in northern climates.5
- Headaches and dizziness; headaches are usually non-migrainous, rarely throbbing, usually described as dull, and often as a pressure on the head.5
- Tiredness, loss of concentration.
- Eye problems.
- Skin problems, e.g. dry or itchy skin.
- Nausea.
- Coughing, shortness of breath, wheezing.
- Ear, nose or throat irritation.6
Workplace assessment
Guidance from the Health and Safety Executive (HSE) recommends that employers should:
- Carry out an employee survey to see if the occurrence of symptoms is higher than expected.
- Check the general cleanliness of the building, the state of all cleaning machinery, e.g. vacuum cleaners, and the usage and storage of cleaning materials.
- Check the heating, ventilation and air conditioning system.
- After any initial steps to resolve the problem have been implemented, it may be necessary to repeat the employee survey and it may be necessary to carry out a more detailed assessment of the workplace environment.
Treating the underlying problem
- Education and recognition of the problem.
- Addressing relevant psychosocial issues, e.g. high job demands and low support.
- Removal of the pollution source if possible.
- Improved planning of building ventilation.
- Maintenance of indoor air quality by regular servicing and quality measurements.
- Discouragement of smoking.
- Increasing the number of live plants in buildings.


Examples
The following examples are provided as part of this documentation. Click
the name of any example to go to the corresponding page.
Basics
- Layout hierarchy
- Using layouts inside layouts to produce more complex designs
Using axes
- Positioning axes
- Using the different axes position properties.
- Axes legends and colorbars
- How to work with axes that may also have legends and/or colorbars.
Using panels
- Context help
- Adding context-sensitive help using panels.
- Minimize and maximize
- Creating a user interface with panels that can be minimized and
maximized.
- Dock and undock
- Creating a user interface with panels that can be undocked into
separate windows.
Visible
- Show and hide
- Showing and hiding a layout and its contents.
Applications
- Building a complete application
- Using layouts together to produce a complete application.
© 2016 The MathWorks Ltd
Terms of Use
Patents
Trademarks


What is coding club?
Coding club (also known as computer science club) is an after school program for students at HHS. It's run by Sam Wilson who took over in 2013 from Marc Cuva. At coding club, Sam teaches different programming languages and attempts to give insight into the processes that make computers go. This year, coding club will be held on Wednesdays from 2:45 to 3:30.
What will I learn at coding club?
In the past we have covered languages such as Scratch, Java, and Lua. At some point, articles and tutorials for these will be placed on this website. If you want to look at Scratch you can head over to the helpful links page. This year we will be learning the basics of website design including HTML, CSS, and JavaScript. Tutorials and video lessons of what we have learned will be added to the site as we cover them. If you want some more information, jump down to the introductions on HTML, CSS, JavaScript.
Introduction to HTML
HTML stands for HyperText Markup Language. It is the primary language used to make webpages across the internet. The basis of HTML are tags which tell a browser how to format text or another element. These tags list every element into a sort of hierarchy, and with the help of CSS, add styles and attributes. The other fundamental part of HTML are links, which add the "hyper" to "hypertext". Links allow webpages, essentially text documents, to interact with each other in a basic manner.
Introduction to CSS
CSS stands for Cascading Style Sheets. It adds nearly all of the styling to a webpage. Without it, webpages would look more like text documents than presentations. The name comes from how the style attributes are passed along between elements. Using the hierarchy outlined in the HTML, CSS can pass style attributes down from parent elements to child elements (hence, "cascading"). The "style sheets" part comes from the abilty to store these style rules in separate documents that are loaded by the HTML files.
Introduction to JavaScript
JavaScript, despite its name, has almost nothing to do with Java. JavaScript is what most web developers use to add functionality to their webpages. While HTML and CSS are markup languages, JavaScript is a full-fledged interpreted language. This means you can make actual programs which interact and affect the elements on a webpage. Pretty much everything you do on a website from logging in to searching for products uses at least some JavaScript to give that functionality.


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3.17. Summation Techniques (optional) (WORK IN PROGRESS)¶
Consider the following simple summation.
An easy proof by induction shows that this summation has the well-known closed form \(n(n+1)/2\). But while induction is a good technique for proving that a proposed closed-form expression is correct, how do we find a candidate closed-form expression to test in the first place? Let us try to think through this problem from first principles, as though we had never seen it before.
A good place to begin analyzing a summation it is to give an estimate of its value for a given \(n\). Observe that the biggest term for this summation is \(n\), and there are \(n\) terms being summed up. So the total must be less than \(n^2\). Actually, most terms are much less than \(n\), and the sizes of the terms grow linearly. If we were to draw a picture with bars for the size of the terms, their heights would form a line, and we could enclose them in a box \(n\) units wide and \(n\) units high. It is easy to see from this that a closer estimate for the summation is about \((n^2)/2\). Having this estimate in hand helps us when trying to determine an exact closed-form solution, because we will hopefully recognize if our proposed solution is badly wrong.
Let us now consider some ways that we might hit upon an exact equation for the closed form solution to this summation. One particularly clever approach that we can take is to observe that we can “pair up” the first and last terms, the second and (\(n-1\))th terms, and so on. Each pair sums to \(n+1\). The number of pairs is \(n/2\). Thus, the solution is \(n(n+1)/2\). This is pretty, and there is no doubt about it being correct. The problem is that it is not a useful technique for solving many other summations.
Now let us try to come up with something a bit more general. We already recognized that, because the largest term is \(n\) and there are \(n\) terms, the summation is less than \(n^2\). If we are lucky, the closed form solution is a polynomial. Using that as a working assumption, we can invoke a technique called guess-and-test. We will guess that the closed-form solution for this summation is a polynomial. That means that we are guessing that it is of the form \(c_1 n^2 + c_2 n + c_3\) for some constants \(c_1\), \(c_2\), and \(c_3\). If this is true, then we can plug in the answers to small cases of the summation to solve for the coefficients. For this example, substituting 0, 1, and 2 for \(n\) leads to three simultaneous equations. Because the summation when \(n=0\) is just 0, \(c_3\) must be 0. For \(n=1\) and \(n=2\) we get the two equations
which in turn yield \(c_1 = 1/2\) and \(c_2 = 1/2\). Thus, if the closed-form solution for the summation is a polynomial, then it can only be
which is more commonly written
At this point, we still must do the “test” part of the guess-and-test approach. We can use an induction proof to verify whether our candidate closed-form solution is correct. In this case it is indeed correct, as shown by Example . The induction proof is necessary because our initial assumption that the solution is a simple polynomial could be wrong. For example, it might have been that the true solution includes a logarithmic term, such as \(c_1n^2 + c_2 n \log n\). The process shown here is essentially fitting a curve to a fixed number of points. Because there is always an \(n\)-degree polynomial that fits \(n+1\) points, we have not done enough work to be sure that we to know the true equation without the induction proof.
Guess-and-test is useful whenever the solution is a polynomial expression. In particular, similar reasoning can be used to solve for \(\sum_{i=1}^n i^2\), or more generally \(\sum_{i=1}^n i^c\) for \(c\) any positive integer. Why is this not a universal approach to solving summations? Because many summations do not have a polynomial as their closed form solution.
A more general approach is based on the subtract-and-guess or divide-and-guess strategies. One form of subtract-and-guess is known as the shifting method. The shifting method subtracts the summation from a variation on the summation. The variation selected for the subtraction should be one that makes most of the terms cancel out. To solve sum \(f\), we pick a known function \(g\) and find a pattern in terms of \(f(n) - g(n)\) or \(f(n)/g(n)\).
Example 3.18.1
Find the closed form solution for \(\sum_{i=1}^n i\) using the divide-and-guess approach. We will try two example functions to illustrate the divide-and-guess method: dividing by \(n\) and dividing by \(f(n-1)\). Our goal is to find patterns that we can use to guess a closed-form expression as our candidate for testing with an induction proof. To aid us in finding such patterns, we can construct a table showing the first few numbers of each function, and the result of dividing one by the other, as follows.
Dividing by both \(n\) and \(f(n-1)\) happen to give us useful patterns to work with. \(\frac{f(n)}{n} = \frac{n+1}{2}\), and \(\frac{f(n)}{f(n-1)} = \frac{n+1}{n-1}\). Of course, lots of other guesses for function \(g\) do not work. For example, \(f(n) - n = f(n-1)\). Knowing that \(f(n) = f(n-1) + n\) is not useful for determining the closed form solution to this summation. Or consider \(f(n) - f(n-1) = n\). Again, knowing that \(f(n) = f(n-1) + n\) is not useful. Finding the right combination of equations can be like finding a needle in a haystack.
In our first example, we can see directly what the closed-form solution should be. Since \(\frac{f(n)}{n} = \frac{n+1}{2}\), obviously \(f(n) = n(n+1)/2\).
Dividing \(f(n)\) by \(f(n-1)\) does not give so obvious a result, but it provides another useful illustration.
Once again, we still do not have a proof that \(f(n) = n(n+1)/2\). Why? Because we did not prove that \(f(n)/n = (n+1)/2\) nor that \(f(n)/f(n-1) = (n+1)(n-1)\). We merely hypothesized patterns from looking at a few terms. Fortunately, it is easy to check our hypothesis with induction.
Example 3.18.2
Solve the summation
We will begin by writing out a table listing the first few values of the summation, to see if we can detect a pattern.
By direct inspection of the second line of the table, we might recognize the pattern \(f(n) = \frac{2^n-1}{2^n}\). A simple induction proof can then prove that this always holds true. Alternatively, consider if we hadn’t noticed the pattern for the form of \(f(n)\). We might observe that \(f(n)\) appears to be reaching an asymptote at 1. In which case, we might consider looking at the difference between \(f(n)\) and the expected asymptote. This result is shown in the last line of the table, which has a clear pattern since the \(i\) th entry is of \(1/2^i\). From this we can easily deduce a guess that \(f(n) = 1 - \frac{1}{2^n}\). Again, a simple induction proof will verify the guess.
Example 3.18.3
Solve the summation
This is called a geometric series. Our goal is to find some function \(g(n)\) such that the difference between \(f(n)\) and \(g(n)\) one from the other leaves us with an easily manipulated equation. Because the difference between consecutive terms of the summation is a factor of \(r\), we can shift terms if we multiply the entire expression by \(r\):
We can now subtract the one equation from the other, as follows:
The result leaves only the end terms:
Thus, we get the result
where \(r \neq 1\).
Example 3.18.4
For our second example of the shifting method, we solve
We can achieve our goal if we multiply by two:
The \(i\) th term of \(2f(n)\) is \(i \cdot 2^{i+1}\), while the \((i+1)\) th term of \(f(n)\) is \((i+1) \cdot 2^{i+1}\). Subtracting one expression from the other yields the summation of \(2^i\) and a few non-canceled terms:
Shift \(i\) ‘s value in the second summation, substituting \((i+1)\) for \(i\):
Break the second summation into two parts:
Cancel like terms:
Again shift \(i\) ‘s value in the summation, substituting \(i\) for \((i+1)\):
Replace the new summation with a solution that we already know:
Finally, reorganize the equation:
Here is another example.


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Blackjack is a classic card game that you can enjoy in this app. You'll be taking on the dealer and trying to collect a hand with a value of as close to 21 as possible. Don't go over, though, or you'll lose.
Your hand value is the total of all the cards you are holding. Cards 2 to 10 are valued as indicated, face cards are all worth 10 and aces can either be 1 or 11, whichever benefits you the most.
The game starts with you making a bet.  From here you have got a few options: - If you want another card to try and get you closer to 21, you 'Hit', - To stick with what you have got, you 'Stay', - To receive just one more card and double your bet, hit 'Double'.
If you're dealt an ace and 10 as your first two cards, that's blackjack. This is an automatic win for you unless the dealer gets the same. If this happens, it's called a push and no one wins.


You’ve probably already heard the word “TypeScript” before.In 2018, TypeScript was the 7th most-used and the 3rd fastest-growing language on GitHub, with over 5 million weekly downloads of its compiler.
TypeScript is an open-source programming language developed by Microsoft that compiles to JavaScript.
TypeScript was created by Microsoft and was released in 2012 after two years of development. It was created to allow for optional static type checking, which would be particularly useful when developing large scale applications.
The most important difference between TypeScript and JavaScript is that they are two separate programming languages, though TypeScript is heavily based on JavaScript. In fact, TypeScript is a superset of JavaScript, meaning all valid JavaScript code is also valid TypeScript code.
Everything that can be written in JavaScript can also be written in TypeScript:
The key augmentation TypeScript brings to JavaScript is a type system (hence the name “TypeScript”).
Traditionally, JavaScript is dynamically typed (much like Python). This means that a single variable can either contain text, a number, or even a whole database entity, depending on the occasion—and that’s just fine. What TypeScript does is strictly define what a given variable can contain.
Going into greater technical detail, TypeScript gives you:
1. Strict typing
Everything stays the way we define it. Need a variable to always be a number? It’ll always be a number, then.
2. Structural typing
Indispensable when you care about fully defining the actual structure you use. JavaScript allows for a lot of strange things to be done, so relying on a specific structure is a much safer solution.
3. Type annotations
A handy way of saying explicitly what type should be used.
4. Type inference
Implicit typing performed by TypeScript itself, so that your developers don’t need to provide types where the compiler can find them on its own.
Interfaces
interface LabeledValue { label: string; } function printLabel(labeledObj: LabeledValue) { console.log(labeledObj.label); } let myObj = {size: 10, label: "Size 10 Object"}; printLabel(myObj);
Classes
class Greeter { greeting: string; constructor(message: string) { this.greeting = message; } greet() { return "Hello, " + this.greeting; } } let greeter = new Greeter("world");
Enumerated types
As mentioned in our section on enums, enum members have types when every member is literal-initialized.
Generics
function getArray(items : any[] ) : any[] { return new Array().concat(items); } let myNumArr = getArray([100, 200, 300]); let myStrArr = getArray(["Hello", "World"]); myNumArr.push(400); // OK myStrArr.push("Hello TypeScript"); // OK myNumArr.push("Hi"); // OK myStrArr.push(500); // OK console.log(myNumArr); // [100, 200, 300, 400, "Hi"] console.log(myStrArr); // ["Hello", "World", "Hello TypeScript", 500]
Modules
Modules are executed within their own scope, not in the global scope; this means that variables, functions, classes, etc. declared in a module are not visible outside the module unless they are explicitly exported using one of the export forms. Conversely, to consume a variable, function, class, interface, etc. exported from a different module, it has to be imported using one of the import forms.
For NPM users:
npm install -g typescript
In your editor, type the following JavaScript code in greeter.ts:
function greeter(person) { return "Hello, " + person; } var user = "Jane User"; document.body.innerHTML = greeter(user);
We used a .ts extension, but this code is just JavaScript. You could have copy/pasted this straight out of an existing JavaScript app.
At the command line, run the TypeScript compiler:
tsc greeter.ts
The result will be a file greeter.js which contains the same JavaScript that you fed in. We’re up and running using TypeScript in our JavaScript app!


16 People That Ordered Something Ordinary Online and Received an Unforeseen Surprise
Online shops are definitely a part of our lives. In the US, for example, in 2018, people spent 5 hours a week shopping online. But not all of their purchases have a happy ending. Inexperienced users often don’t check the rating of the seller and only pay attention to the low price of the product. In cases like this, funny things happen: like buying an unexpected holiday costume for your dog, ordering a cool dress that looks like a piece of old cloth, and realizing that the caption on the baseball cap you ordered is not exactly what you expected it to be.
Bright Side has found some bittersweet examples of online shopping experiences.
1. Ordered a costume for a cool party... A dog party
2. If you want to look like a caterpillar, just wear this dress.
3. Glasses for very tiny girls
4. Winter is coming.
5. Looks like a kimono.
6. At least they’re stylish.
7. “So I bought this in a size 8 and it wouldn’t even go over my head. It just fits my 4-year-old daughter! Really?????”
8. Cool-looking pajamas
9. Come on! It’s just a couple of letters!
10. Who is supposed to wear these pants?
11. This is what happens when you buy leggings online.
12. Not even close...
13. The mask turned out to be far scarier than it was in the ad.
14. The color is kind of close though...
15. The size is a bit wrong.
16. The designers probably don’t understand the actual size of a human head.
Bonus: The costume I ordered for Halloween vs What I got
Have you ever been in a similar situation? Share the photos of your disappointment!
Preview photo credit OliviaSkuce / twitter


5 Dead in Apparent Murder-Suicide in San Diego
SAN DIEGO (AP) — Five members of a family, including three young boys, have died and another boy was hospitalized with injuries in an apparent murder-suicide in San Diego.
by Breitbart NewsLt. Matt Dobbs said officers responded to a report of arguing and what sounded like a nail gun being fired inside a house in the Paradise Hills neighborhood Saturday morning.
He said when officers arrived, they found a 3-year-old boy, a 29-year-old woman and a 31-year-old man dead inside. A 5-year-old boy and 9-year-old boy were taken to the hospital where they were pronounced dead.
An 11-year-old boy was also taken to the hospital to undergo surgery. His condition has not been released.
Dobbs said investigators found a gun in the house. Police believe the shooter was one of the deceased.


|
Petri Net Plans
|
A Controller that can log markings' values at the end of each episode. More...
#include <LoggingController.h>
Public Member Functions | |
| LoggingController (Learner *learner) | |
| Created a LoggingController from a given learner. | |
| virtual | ~LoggingController () |
| virtual dtor | |
| void | visited (const Marking ¤t) |
| Notifies this controller that a Marking has been visited. | |
| void | addLogger (const PlaceLogger &pl) |
| Registers a given PlaceLogger with this controller. | |
Protected Attributes | |
| Learner * | learner |
A Controller that can log markings' values at the end of each episode.
The actual logging is performed by PlaceLogger s, that must be registered with the LoggingController
here is an example of pseudocode:
set<string> interestingPlaces; //insert every marking you want to log interestingPlaces.insert("p1"); //create the place logger PlaceLogger logger("File_to_save_logging.txt",interestingPlaces); //if it is the first episode, initialise logger if(firstEpisode) logger.initialize() //instantiate the controller //use the sub-class of LoggingController of your choice LoggingController *controller = new LoggingController(); //register the logger with the controller controller->addLogger(logger);
You may use multiple loggers with the same controller.
When the controller is destroyed, all registered place loggers output the value of the specified markings on the file, for each of those marking that have been visited during the current episode. Otherwise the output is a '?' (question mark).
| learnpnp::LoggingController::LoggingController | ( | Learner * | learner | ) | [explicit] |
Created a LoggingController from a given learner.
The learner
is used to read values from its value function
| learner | a Learner whose value function must be logged/ |
| virtual learnpnp::LoggingController::~LoggingController | ( | ) | [virtual] |
virtual dtor
| void learnpnp::LoggingController::addLogger | ( | const PlaceLogger & | pl | ) |
Registers a given PlaceLogger with this controller.
The registered PlaceLogger pl
will be notified when a Marking has been visited, and when this controller is being destroyed, and it must write markings' values to the file.
Remember to initialise the place logger on the first episode to reset the file.
| pl | the PlaceLogger to be register |
| void learnpnp::LoggingController::visited | ( | const Marking & | current | ) |
Notifies this controller that a Marking has been visited.
This function lets the loggers know whether a Marking has been visited or not. Loggers only save the Marking's value if it has been visited during that episode. Must be called by the sub-classes for logging to take place.
| current | the Marking that has been visited |
Learner* learnpnp::LoggingController::learner [protected] |


scala
– Run code in the Scala 2 language
scala
[ <option> ]... [ <torun> <argument>... ]
<compiler-option>
-howtorun:
<how>
guess
(the default), script
, and object
.-i
-e
-savecompiled
.jar
. On subsequent runs of the same script, the pre-compiled .jar
file will be used if it is newer than the script file.-nocompdaemon
-D
<property=value>
<torun>
<argument>
The scala
utility runs Scala code using a Java runtime environment. The Scala code to run is specified in one of three ways:
-howtorun:object
specified, the fully qualified name of a top-level Scala object may be specified. The object should previously have been compiled using scalac(1).-howtorun:script
specified, a file containing Scala code may be specified.
If -howtorun:
is left as the default (guess
), then the scala
command will check whether a file of the specified name exists. If it does, then it will treat it as a script file; if it does not, then it will treat it as the name of an object.
In all three cases, arbitrary scalac options may be specified. The most common option is to specify a classpath with -classpath
, but see the scalac(1) page for full details.
If an object is specified to run, then that object must be a top-level Scala object with the specified name. The object must define a method main with the following signature:
def main(args: Array[String]): Unit
The method must return a Unit value, and it must accept a String array as a parameter. All arguments specified on the command line will be passed as arguments to the main method.
If a script file is specified to run, then the file is read and all Scala statements and declarations in the file are processed in order. Any arguments specified will be available via the args
variable.
Script files may have an optional header that is ignored if present. There are two ways to format the header: either beginning with #!
and ending with !#
, or beginning with ::#!
and ending with ::!#
.
Such a header must have each header boundary start at the beginning of a line. Headers can be used to make stand-alone script files, as shown in the examples below.
If scala
is run from an sbaz(1) directory, then it will add to its classpath any jars installed in the lib directory of the sbaz directory. Additionally, if no -classpath option is specified, then scala
will add ".", the current directory, to the end of the classpath.
If any compiler options are specified, they must be first in the command line and must be followed by a bare hypen ("-") character. If no arguments are specified after the optional compiler arguments, then an interactive Scala shell is started. Otherwise, either a script file is run, or a pre-compiled Scala object is run. It is possible to distinguish the last two cases by using an explicit -object
or -script
flag, but usually the program can guess correctly.
JAVACMD
java
command to be used for running the Scala code. Arguments may be specified as part of the environment variable; spaces, quotation marks, etc., will be passed directly to the shell for expansion.JAVA_HOME
java
command unless JAVACMD
variable set.JAVA_OPTS
java
command defined by JAVACMD
.
JAVA_OPTS="-Xmx512M -Xms16M -Xss16M"
JAVA_OPTS="--mx512m --ms16m"
Here are some examples of running Scala code:
scala
hello.HelloWorld
scala
–classpath classes
hello.HelloWorldjava
command
env JAVACMD
=/usr/local/bin/cacao
scala
–classpath classes
hello.HelloWorldenv JAVACMD
=java
JAVA_OPTS
="-Dmsg=hello -enableassertions"
scala
–classpath classes
hello.HelloWorld
Here is a complete Scala script for Unix:
#!/bin/sh exec scala "$0" "$@" !#  Console.println("Hello, world!") argv.toList foreach Console.println
If you want to use the compilation cache to speed up multiple executions of the script, then add -savecompiled
to the scala command:
#!/bin/sh exec scala -savecompiled "$0" "$@" !# Console.println("Hello, world!") argv.toList foreach Console.println
The scala
command returns a zero exit status if it succeeds. Non zero is returned in case of any error. If a script or top-level object is executed and returns a value, then that return value is passed on to scala
.
Written by Martin Odersky and other members of the Scala team.
Report bugs to http://lampsvn.epfl.ch/trac/scala
.
This is open-source software, available to you under a BSD-like license. See accomponying "copyright" or "LICENSE" file for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
fsc(1), sbaz(1), scalac(1), scaladoc(1), scalap(1)


"East vs West" seems to be a paradox occurring not only on the global scale, but also even more locally within the China. It has been recently reported that the gap between China’s rich and poor is now one of the world’s highest, surpassing even that in the U.S. This visualization enables us to also understand the scale of geographic inequalities between the cities, in which the urban east is far better connected than the rural west.
Africa is home to the world's fastest-growing population; Africa's workforce is expected to be the world's largest by 2035, bigger than both China's and India's; consumer spending is growing in Africa from around $900bn today to an anticipated $1.4 trillion by 2020. However, currently it lags far behind other more developed continents in terms of flight routes served or expenditure of foreign visitors in their country.
In 2012, United Airlines merged with Continental Airlines to surpass Delta in becoming the world largest carrier. Prior to the merger, United offered a hub at Narita Airport, Tokyo, to serve non-stop flights from Tokyo, while Continental, on the other hand, has an airport hub at Guam International Airport. Both of these are visible under the United Airline name on the world map.
This visualization shows there are extremely few flights that connect Israel with nearby Arab countries. For the majority of the other countries, the flight connections are very frequent in their neighbors; clearly Israel seems to be an exception to the rule. This data can speak directly to the political relationships between the countries in the Arab world; an extremely interesting find!
The airline industry had the worst demand decline ever in 2009, when the global crisis shook most economies. Passenger demand fell 3.5%, with an average load factor of 75.6%. Freight markets also saw a decline of 10.1%, with an average load factor of only 49.1%. The linechart shows how some of the countries with the most incoming passengers in the world experienced significant declines.
Source


If this cli helped you, please give me a star on this github !
inline the js/css chunks according to the entry in runtime
custom package.json file


{% extends 'accounts/base.html' %} {% load crispy_forms_tags %} {% block title %} Enter new password {% endblock %} {% block content %}
{% trans "The password reset link was invalid, possibly because it has already been used. Please, request a new password reset.
{% endif %}


| About Dailyrotten |
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On the first full day this page went live, 100,000 people visited this Rotten
News page. Of course that was the day after the WTC attacks, so that number is
somewhat distorted. Right now this page gets between 50,000 and 75,000 people
every day.
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June 06, 2002
Scavenger Hunt or Wild Teen Sex Party
Boston Globe | Submitted by: z0rak187, Bob
Apparently it just isn't fun anymore At Newtown South High School unless half
the school is on The Hunt; The Scanveger Hunt that is, where stand up 69 is
worth 35 points and a game of "ookie Cookie" worth 50. The organizers get some
props for creating a dummy list to hand over to the cops. The 2nd link is
to the scavenger list itself.
|
|
Read article... and
This article...
|
|
Bondage girls left out in the cold
Stuff NZ | Submitted by: Biggles
Two women in bondage clothing couldn't come up with the taxi fare, so the angry cabbie steals their bag containg hundreds of dollars worth of bondage equipment, lingere, liquid latex and house keys...
Needless to say the cabbie has not come forward with the goods. (somewhere there's a lucky Mrs "Cabbie")
|
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Read article...
|
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McDonalds to pay for French Fry sins
CNN Money | Submitted by: Jesus Conejo
"McDonald's Corp. said it would pay $10 million to Hindu, vegetarian and
other groups more than a year after a Seattle lawyer sued the fast-food chain,
alleging it failed to disclose the use of beef flavoring in its French fries."
|
|
Read article...
|
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Not responding saves police time, money
KOTV-TV 6 Tulsa | Submitted by: metaload
One police lieutenant said the new rules have saved them lots of money and hundreds of man-hours, and he knows of no crimes they've missed by not responding to every alarm. If you get the $24 permit and the alarm company calls... you'll get a police response. Rick Wells, "So now what are you gonna do?" DeVore, "Pay the fee."
|
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Read article...
|
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Japanese teen suicide island
Globe and Mail | Submitted by: Kathy
"Shortly after Chan Wing-yun and his two school friends arrived at an island
retreat off Hong Kong recently, they carefully sealed the windows of their
rented room, lit a charcoal burner, and killed themselves. The rise in suicides
has become a blight on the resort island of Cheung Chau... For reasons that are
not clear, the island and its numerous holiday bungalows and rooms for rent
seem to be a magnet for many who want to end their lives, a grim phenomenon
that irks residents and business operators."
|
|
Read article...
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Replay users sue Hollywood
EFF | Submitted by: Soylent
Hollywood hates your rights.
|
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Read article...
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Japanese nurses gone wild
Japan Today | Submitted by: Powerlung
"When he came over, she gave him curry and rice laced with a hypnotic sedative.
After he fell asleep, she inserted tubes into both his mouth and nose and then
poured in about 700 ml of whiskey. Furthermore, she injected about four liters
of water into his veins. As a result, Kumon suffered a breathing disorder and
died shortly after." More details on this story, earlier posted.
|
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Read article...
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Police wannabes get the anal probe
Associated Press | Submitted by: Son of Benway
"A Polk County sheriff's deputy has been accused of sexually abusing young men during false medical exams, which he allegedly said would help them get jobs with the sheriff's office...Lawson met the 18- and 19-year-old victims through his law enforcement work between 1998 and 2001, officials said. He falsely posed as a physician's assistant, giving the men free medical tests, including rectal exams, officials said."
|
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Read article...
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Nickelodeon's secret agenda revealed
Cybercast News Service | Submitted by: Son of Benway
"Plans by the Nickelodeon cable television network to air a special on
homosexuality and same-sex parenting have outraged thousands of parents, many
of whom are threatening to tune out the show - or cancel it altogether.
According to a poll conducted by CNSNews on June 4-5, 99 percent of 15,227 the people responding did not believe it was appropriate for the kid's channel
Nickelodeon to air a show about homosexuality."
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Read article...
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The Great Firewall of China
BBC | Submitted by: Soylent
"Inside an imposing building in Beijing is the Ministry of Information
Industry, where a hi-tech police force keeps watch over the internet 24
hours a day. It has been nicknamed the great fire-wall of China."
|
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Read article...
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I'm Too Sexy For My Tongue
Newsday | Submitted by: Hail Otis
Michigan legislature declines to ban elective tongue-splitting surgery for those who wish to achieve that oh-so-sexy viper look. Good news for anthropologists: no need to travel all the way to the Australia Outback to study Aboriginal penis-splitting rituals while wondering if these people are truly sane; Michigan is so much closer.
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Read article...
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Good ol' fashioned rip on Britney Spears
BayArea.com | Submitted by: ENAK
A nice exploit of Britney's "package" for what it really is. Britney reveals, "I had something to do one day, and I was like, I'm tired. I don't
want to do it. And afterward, I was like, Oh. That was simple. I say
this, then that happens." Britney admits learning the answer to 2+2
later that same month.
|
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Read article...
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What really happens to your luggage
Miami New Times | Submitted by: neon
"In the rapidly rising morning heat, Marvin and Lazaro position the suitcases,
trunks, boxes, animal cages, and all the other cargo in the holds. But before
they do, they've already appraised their potential yield. Marvin is an
acknowledged master of trinket heist. He can spot a suitcase that looks full of
loot (he relies mostly on hunches, as a good Customs agent does when deciding
whether to search a traveler for contraband), open the bag (locks pose no
deterrent), and in a matter of seconds pocket a gold bracelet and earrings, a
few packs of cigarettes, and a bottle of expensive perfume." This is what
shitty wages plus the keys to the castle do to you.
|
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Read article...
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Healthy eating is one of the best things you can do to prevent and control health problems such as heart disease, high blood pressure, type 2 diabetes, and some types of cancer.
{{diet.introduction}}


microformat-node
Microformats Tests
Inspect the details of any test from the list
Test
Expected JSON
Parser JSON
Differences


--- layout: data_model title: NetworkSocketObjectType this_version: 1.0.1 ---
The NetworkSocketObjectType is intended to characterize network sockets.
| Field Name | Type | Description |
|---|---|---|
| @object_referenceoptional | QName |
The object_reference field specifies a unique ID reference to an Object defined elsewhere. This construct allows for the re-use of the defined Properties of one Object within another, without the need to embed the full Object in the location from which it is being referenced. Thus, this ID reference is intended to resolve to the Properties of the Object that it points to. |
| Custom_Properties0..1 | CustomPropertiesType |
The Custom_Properties construct is optional and enables the specification of a set of custom Object Properties that may not be defined in existing Properties schemas. |
| @is_blockingoptional | boolean |
The is_blocking field specifies whether or not the socket is in blocking mode. |
| @is_listeningoptional | boolean |
The is_listening field specifies whether or not the socket is in listening mode. |
| Address_Family0..1 | AddressFamilyType |
The Address_Family field specifies the address family (AF_*) that the socket is configured for. |
| Domain0..1 | DomainFamilyType |
The Domain field specifies the communication domain (PF_*) of the socket. |
| Local_Address0..1 | SocketAddressObjectType |
The Local_Address field specifies the IP address and port for the socket on the local machine. |
| Options0..1 | SocketOptionsType |
The Options field specifies any particular options used by the socket. |
| Protocol0..1 | ProtocolType |
The Protocol field specifies the type of IP layer protocol used by the socket. |
| Remote_Address0..1 | SocketAddressObjectType |
The Remote_Address field specifies the IP address and port for the socket on the remote machine. |
| Type0..1 | SocketType |
The Type field specifies the type of socket being characterized. |


About Our Team
Dani Newport
- Summer Feelz: excited, motivated, relaxed
- Aspirational Hobby: Sculpting! I love 2D art, and would love to get into 3D art
- Ask me About: 👟 Running 👟
Bianca Lyons
- Summer Feelz: Creative, Eager, Adventurous
- Aspirational Hobby: Painting and Making Comics
- Ask me About: Video Games
Gloria Kitchens
- Summer Feelz: Excited, Anxious, Ready
- Aspirational Hobby: Learning different languages
- Ask me About: Horror movies


Coding Quiz
Welcome to the Javascript quiz! This quiz will test your ability to quickly comprehend and answer easy to challenging Javascript questions and problems.
You will start with 90 seconds for this quiz, but every time you get an answer wrong, the timer will drop by 10 seconds. If the timer reaches 0, or you complete the final question of the quiz, the quiz will end, and the remaining time will be your score. Try to get the highest score you can!
Click below to start.


On average, how many hours do you spend on social media per day?
3.00This post is going to explore the following question:
Presentation shows how to determine the total possible connections in a social network of 1000 users: In progress
Presentation shows the number of total possible connections for 10, 30, and 100 users: In progress
Presentation includes at least two different representations that show how the number of connections changes based on the number of users: In progress


public interface TransportLayerProtocol
SSH message code constants for the SSH Transport Layer Protocol. The Message Number is a byte value that describes the payload of a packet.
RFC 4251 - The Secure Shell (SSH) Protocol Architecture: Message Numbers
| Modifier and Type | Field and Description |
|---|---|
static int |
SSH_DISCONNECT_AUTH_CANCELLED_BY_USER
SSH disconnect reason code constant for user authentication canceled by user.
|
static int |
SSH_DISCONNECT_BY_APPLICATION
SSH disconnect reason code constant for disconnect by application.
|
static int |
SSH_DISCONNECT_COMPRESSION_ERROR
SSH disconnect reason code constant for compression errors.
|
static int |
SSH_DISCONNECT_CONNECTION_LOST
SSH disconnect reason code constant for connection lost.
|
static int |
SSH_DISCONNECT_HOST_KEY_NOT_VERIFIABLE
SSH disconnect reason code constant for host key not verifiable.
|
static int |
SSH_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT
SSH disconnect reason code constant for host not allowed to connect.
|
static int |
SSH_DISCONNECT_ILLEGAL_USER_NAME
SSH disconnect reason code constant for illegal user name.
|
static int |
SSH_DISCONNECT_KEY_EXCHANGE_FAILED
SSH disconnect reason code constant for key exchange failure.
|
static int |
SSH_DISCONNECT_MAC_ERROR
SSH disconnect reason code constant for MAC errors.
|
static int |
SSH_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE
SSH disconnect reason code constant for no more authentication methods available.
|
static int |
SSH_DISCONNECT_PROTOCOL_ERROR
SSH disconnect reason code constant for protocol error.
|
static int |
SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED
SSH disconnect reason code constant for protocol version not supported.
|
static int |
SSH_DISCONNECT_RESERVED
SSH disconnect reason code constant for reserved errors.
|
static int |
SSH_DISCONNECT_SERVICE_NOT_AVAILABLE
SSH disconnect reason code constant for service not available.
|
static int |
SSH_DISCONNECT_TOO_MANY_CONNECTIONS
SSH disconnect reason code constant for too many connections.
|
static byte |
SSH_MSG_DEBUG
SSH message code constant '4' to signal debug message.
|
static byte |
SSH_MSG_DISCONNECT
SSH message code constant '1' to signal SSH disconnect.
|
static byte |
SSH_MSG_IGNORE
SSH message code constant '2' to signal ignore message.
|
static byte |
SSH_MSG_KEX_DH_GEX_GROUP
SSH message code constant '31' to signal key exchange DH group request.
|
static byte |
SSH_MSG_KEX_DH_GEX_INIT
SSH message code constant '32' to signal key exchange DH group init.
|
static byte |
SSH_MSG_KEX_DH_GEX_REPLY
SSH message code constant '33' to signal key exchange DH group reply.
|
static byte |
SSH_MSG_KEX_DH_GEX_REQUEST
SSH message code constant '34' to signal key exchange DH group request.
|
static byte |
SSH_MSG_KEXDH_INIT
SSH message code constant '30' to signal key exchange request.
|
static byte |
SSH_MSG_KEXDH_REPLY
SSH message code constant '31' to signal key exchange response.
|
static byte |
SSH_MSG_KEXINIT
SSH message code constant '20' to signal key exchange init (client or server).
|
static byte |
SSH_MSG_NEWKEYS
SSH message code constant '21' to signal new keys (client or server).
|
static byte |
SSH_MSG_SERVICE_ACCEPT
SSH message code constant '6' to signal SSH service accepted.
|
static byte |
SSH_MSG_SERVICE_REQUEST
SSH message code constant '5' to signal service request.
|
static byte |
SSH_MSG_UNIMPLEMENTED
SSH message code constant '3' to signal unimplemented.
|
static final byte SSH_MSG_DISCONNECT
static final byte SSH_MSG_IGNORE
static final byte SSH_MSG_UNIMPLEMENTED
static final byte SSH_MSG_DEBUG
static final byte SSH_MSG_SERVICE_REQUEST
static final byte SSH_MSG_SERVICE_ACCEPT
static final byte SSH_MSG_KEXINIT
static final byte SSH_MSG_NEWKEYS
static final byte SSH_MSG_KEXDH_INIT
static final byte SSH_MSG_KEXDH_REPLY
static final byte SSH_MSG_KEX_DH_GEX_GROUP
static final byte SSH_MSG_KEX_DH_GEX_INIT
static final byte SSH_MSG_KEX_DH_GEX_REPLY
static final byte SSH_MSG_KEX_DH_GEX_REQUEST
static final int SSH_DISCONNECT_HOST_NOT_ALLOWED_TO_CONNECT
static final int SSH_DISCONNECT_PROTOCOL_ERROR
static final int SSH_DISCONNECT_KEY_EXCHANGE_FAILED
static final int SSH_DISCONNECT_RESERVED
static final int SSH_DISCONNECT_MAC_ERROR
static final int SSH_DISCONNECT_COMPRESSION_ERROR
static final int SSH_DISCONNECT_SERVICE_NOT_AVAILABLE
static final int SSH_DISCONNECT_PROTOCOL_VERSION_NOT_SUPPORTED
static final int SSH_DISCONNECT_HOST_KEY_NOT_VERIFIABLE
static final int SSH_DISCONNECT_CONNECTION_LOST
static final int SSH_DISCONNECT_BY_APPLICATION
static final int SSH_DISCONNECT_TOO_MANY_CONNECTIONS
static final int SSH_DISCONNECT_AUTH_CANCELLED_BY_USER
static final int SSH_DISCONNECT_NO_MORE_AUTH_METHODS_AVAILABLE
static final int SSH_DISCONNECT_ILLEGAL_USER_NAME
Copyright © 2015. All rights reserved.


--- layout: archive title: Zulip Chat Archive permalink: /stream/116395-maths/topic/lean-stacks-project.html ---
I noticed some updates to lean-stacks-project today. In case this helps, I wanted to share a fork I played with a few weeks ago where I also tried to update it to work with more recent mathlib commits. See the testing branch here which builds successfullly with mathlib at commit b267edc
(from July 16-17). Here's the relevant page of the mathlib commit history for reference.
I tried bumping the mathlib commit to a0dd286
(since that seems to be the next one in the history with a green Travis CI checkmark) but I couldn't figure out how to fix the resulting issues in tensor_product. The same issues seem to be present in the master branch of lean-stacks-project as well. So I think whatever's going on there was caused by one of these changes between those two commits.
Anyways, I'm curious to understand better what happened there and what the eventual fix will be.
Hi. I'm the maintainer. I tried today to get the project to compile with the latest mathlib, I'm something like one sorry away. I'm trying to put together a paper about this stuff. I seem to have two options: try publishing in a CS place, which would involve tidying the code up, or in a maths place, which might well not. I might try a maths journal, I am far keener to tell mathematicians that schemes can be formalised than to tell computer scientists that something they don't care about can be formalised, because they know that already.
{% endraw %}Last updated: Apr 24 2020 at 19:02 UTC


Frequent flyer always carries a shoelace when he travels - and you should too
'Flying doctor' Ben MacFarlane shares his secrets to staying healthy and happy as you move through airports and hotel rooms
by Luke Matthews, https://www.mirror.co.uk/authors/luke-matthews/A 'flying doctor' who spends a lot of his time on planes and in hotel rooms has revealed his top tips for staying safe on your travels.
Ben MacFarlane works to bring ill or injured holidaymakers back home after a crisis and his experiences have taught him a lot of lessons about keeping happy and healthy overseas.
The doctor shared the reasons he always carries a black shoelace on his travels and how to stay on the right side of fight attendants as he revealed his secrets, writing for the Daily Mail .
When you board a plane, Ben says the two things you need to ditch are fizzy drinks and chewing gum, with both adding to getting excessive gas in the air.
The drinks will add extra oxygen to your system and chewing gum also makes us swallow more air. If you suffer with painful ears during the take-off or landing, try wiggling your jaw or fake yawning instead.
If you fancy another drink on a plane, the doc advises waiting until an hour after your meal trays have been cleared away.
That hour is used by flight staff to eat their own meals, so if you interrupt them for another G&T, you're going to be in their bad books.
Pickpockets can often be rife in tourist destinations, so tying the two zips of your backpack together with a discreet shoelace makes it a lot harder for you to be targetted.
It will also stop your over-stuffed bags falling open in crowded areas.
Ben says the airline staff he knows will always unplug the phone as soon as check into a hotel room to avoid any late-night wrong number calls and suggests always checking the person in the room before you hasn't set an unwanted alarm to go off either.
He also never sleeps naked, as dozing off in shorts and a T-shirt rids him of the anxiety of a late-night fire alarm or a stranger bursting in after being accidentally checked into the same room.
Check the bedside alarm clock against your phone, watch or the news to ensure it's set to the correct time, as finding out it's actually two hours later than you thought can be disastrous if you've got a plane to catch.
 Leave it behind when you head out, as it tells potential thieves where you're staying, which room you're in and that you're not there.


You are about to do a small short term memory test. A few digits will flash on your computer monitor for a seconds. Your job is to write down as many digits as you can remember after they disappear.


The first trailer for Ghostbusters: Afterlife ain’t afraid of no ghost!
by Darryn BonthuysAre you troubled by strange noises in the middle of the night? Do you experience feelings of dread in your basement or attic? Have you or any of your family have seen a spook, spectre or Ghost? If the answer is yes, then pick up your phone and call the professionals: Ghostbusters! Much like the phantasms they hunt, you just can’t keep a good paranormal extermination service down, and after a few decades of retirement it looks like a new generation is ready to grab strap a proton pack on and answer the call.
Here’s the first trailer, for Ghostbusters: Afterlife.
Ghostbusters: Afterlife stars McKenna Grace, Finn Wolfhard, Carrie Coon, Sigourney Weaver, Annie Potts, Paul Rudd, Celeste O’Connor, Logan Kim and Ernie Hudson, with Jason Reitman directing. It’ll be reminding people that bustin’ makes you feel good on July 10 in 2020.


{% extends "layout.html" %} {% block title %}Login{% endblock %} {% block main %} {% if next %} {% if user.is_authenticated %}
Your account doesn't have access to this page. To proceed, please login with an account that has access.
{% else %}Please login to see this page.
{% endif %} {% endif %}Unable to log in with those credentials. Try again.
{% endif %} {% endblock %}


Sign up to receive news, updates, event notifications and other ways to get involved. We will never share your personal information.
Donate to NewPower Education to help women get involved in public service throughout the state of Georgia. All donations to NewPower Education are tax deductible.
Interested in having a speaker talk with your organization about how women can get more civically involved? Contact us to learn more!


PhoneGap Kitchen Sink
Starting app
Accelerometer
Camera
Contacts
Device
Notification
Geolocation
Acceleration X:
Acceleration Y:
Acceleration Z:
Camera
Gallery
Scroll an alphabetical list like contacts
Name
UUID
Platform
Version:
Phonegap Version:
Alert
Vibrate


The claimant's response to your offer
Jan Clark has rejected your offer to repay them £200 per month starting {{ now | date('add', 1, 'months') | date( 'D MMMM YYYY' ) }}.
They have proposed the following repayment plan and signed a settlement agreement.
| Monthly instalments of | £250 | |
| Make the first payment on | 1 {{ now | date("add", 1, "month") | date( "MMMM YYYY" ) }} | |
| Last payment on | 1 {{ now | date("add", 13, "month") | date( "MMMM YYYY" ) }} | |
| Duration of payments | 1 year |
Based on the financial details you provided, the court affordability calculator believes this plan is affordable. If you do not feel it is, you can request a judge determines a new repayment plan.
Signing the settlement agreement will put the claim on hold and the claimant will not be able to request a County Court Judgment against you.


Congratulations on surviving the school year, and enjoy your summer break!
UGWA now has an obnoxious message to remind you that we will no longer maintain the app next year. Learn more about our decision by watching our video: The End of gunn.app | gunn.app.
Also, please consider watching our gunn.app series.


---
layout: post
title: Capistrano 1.1
post_id: 161
categories:
- announcements
date: 2006-03-06 12:07:00.000000000 -07:00
author: Jamis
permalink: 2006/3/6/capistrano-1-1.html
---
Capistrano is a utility for executing tasks in parallel across multiple remote hosts. It was formerly known as SwitchTower.
Installation:
gem install capistrano
Version 1.1 introduces a few changes:
- The generated capistrano.rake file is simpler now than it used to be. You can easily append custom options to individual tasks now. For instance, if you want the deploy to be silent, instead of verbose, just add “-q” to the parameter list for that task.
- The generated capistrano.rake file uses the “remote” namespace, so you’ll need to have at least Rake 0.7.0. You can still do “rake deploy” and “rake rollback”, but the other tasks must be prefixed with the namespace (“rake remote:exec”, “rake remote:show_tasks”, etc.)
- The ‘switchtower’ command is replaced by the ‘cap’ command.
- The cap utility is verbose by default. If you want it to be silent, use the -q option. If you want it to be less verbose, you can specify the -v or -vv flags explicitly.
- The cap utility uses more rake-like command-line semantics. Instead of needing to do “cap -r config/deploy -a deploy”, you can just do “cap deploy”. It will look for config/deploy.rb, capfile, or Capfile automatically, and will treat raw parameters as action names.
Upgrading/switching from SwitchTower to Capistrano is a little inconvenient. Here’s what you’ll need to do:
- gem uninstall switchtower (remove all versions)
- gem install capistrano
- For each of your Rails projects, do “cap -A .”, keeping your deploy.rb
- For each of your Rails projects, remove lib/tasks/switchtower.rake
Enjoy!


Firefox App of the Month - September
September 11, 2014
We have heard a lot of Firefox OS and currently it is one of the top trending Mobile OS in the world. Recently it has been released in India and has seen massive success.
Developing apps for Firefox OS is very simple, it is just with the help of HTML5, Javascript and CSS3. We can also develop apps with the help of the Mozilla Appmaker tool. It is always interesting to develop more apps. In upcoming post you can learn more about developing apps with the help of API's.
| Education Apps for Firefox |
Each and every month Firefox Student Ambassador team is working on different theme which will be helping lot of students to think apps in different perspective. For the month of September it is Educational Games.
We all know Education is Key for Success, and we all know Gaming brings fun to all of us. Keeping this is mind students will have to develop some of the interesting apps which will be teaching others in Gamified Manner.
We have lot of game ideas
- Coloring Alphabets and Number for kids.
- Hangman
- Find the missing letter
- Matching the numbers and words
- Label parts of objects and so on..


Jetty SSL Demo
The Jetty demo can be run with a packaged keystore by following these steps:
- Edit the etc/demo.xml file to uncomment the SSL listener.
- Make sure that your CLASSPATH contains jnet.jar, jcert.jar and jsse.jar
- Run the demo with:
java org.mortbay.jetty.Server etc/demo.xml
Startup is slower than normal as the SecureRandom class must be initialized.
- Follow the link https://<IP_ADDRESS>:8443/jetty/index.html. Remember that the first access to the server via SSL will be slower than usual as the SSL session will need to be negotiated - subsequent requests will be processed much more rapidly.


Calculated using the auto-correlation algorithm for every frequency.
| input: | - Test Tones: |
| output: | |
| length: | Audio Buffer Length |
| minRms: | Minimal signal strength (Red) |
| normalize: | |
| Pitch Detection: | |
| Pitch Detection Range: | (Green) |
| Visualize: | |
| stopAfterDetection | |
|
|
Y-Axis: RMS (Red), Auto-Correlation Increase (Blue), Auto-Correlation Score (Black).
X-Axis: Frequency range (2-512 samples = 22.05 kHz - 83 Hz = F10 - E2) and detection area (Green)


Your browser does not support HTML5! Original Game code from GitHub user yumetodo
Other games are in construction


Continuous patient monitoring systems
{{product.productName}}
{{product.price}}
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I first began experimenting with web development back in 2001. I was among the first classes in my school to take classes on web development and learning HTML. I have since been able to experiment and learn CSS and some Javascript and jQuery through personal projects and experiments.
A bulk of my learning occurred when I began work at EKR Agency. I was taught mostly in a Wordpress setting, and I learned some PHP as well as expanded my CSS, Javascript, and jQuery knowledge. I'm currently attending school at MATC to learn more and improve my development skills and speed.
Resume
Experiments, Projects, and Tests: Quick links
Timpanogos High High School Diploma Graduated: 6/2006 Orem, UT
UVU One year completed, studied Digital Media Orem, UT
MATC Currently Attending, studied Web Development Lehi, UT
226 S 175 E
OREM, UT 84058
Cell Phone:<PHONE_NUMBER>
THEICEAN@GMAIL.COM


Thank you for visiting my page! I am a Georgia State University senior, graduating in Spring 2020.
I'm from Columbus, Georgia, but I've lived in Atlanta for the last four years. I have been interested in full-stack development during
my college career, however, these last couple of years I've become more focused on front-end development. When I'm not coding, you
will probably find me dancing :)


A day ago, I got in a fairly serious car accident. Physical injury was minimal, I didn't have any problems besides six staples in my scalp and a sore knee from kicking my door open... but from the looks of the accident and how hard I got hit (70mph), everyone expected to me to be pretty sore the next day.
To make a long story short, I'm not in much pain at all, and that leaves me with a full bottle of Vicodin and a whole bottle of Soma at my disposal. At about 9:30 I injested two 5mg Vicodin tablets, rolled up a blunt, and started watching Adult Swim. Half an hour later, I injested two 350mg Soma tablets, and half an hour after that smoked my blunt.
I'm a fairly experienced pot smoker, and no stranger to vicodin. It takes a good quantity of either one to really fade me, and combined the effects of the two typically seemed to negate each other. This is the first time I had even heard of Soma, but I had been taking it the whole day before, combined with the Vicodin; just like they had given it to me at the hospital. That combination produced the expected floating sensation... but not as much as it just made me extremely drowsy.
Anyway, after I smoked my blunt I started working in Fruity Loops on my laptop... and the next thing I know I get an instant message and realize it's a quarter until two in the morning, and I missed Family Guy.
In Fruity Loops I had made a little bit of progress on the instrumental, but definitely not 3 hours worth. I chase the whole experience with another one of the Vicodin and smoke a cigarette.
Soma by itself didn't have much kick... but something about the weed brought about some nice effects.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


Core Tuxxedo library namespace. This namespace contains all the main
foundation components of Tuxxedo Engine, plus additional utilities
thats provided by default. Some of these default components have
sub namespaces if they provide child objects.
| Class | Description |
| \Tuxxedo\Bootstrap | Bootstraper, this class works as an encapsulated and easier way |
| \Tuxxedo\Cookie | Cookie Jar, this is a basic OO wrapper for cookies, it shares |
| \Tuxxedo\Database | Abstract Abstract database class |
| \Tuxxedo\Datastore | Datastore cache, this enables datastore caching for |
| \Tuxxedo\Exception | Default exception, mainly used for general errors. All |
| \Tuxxedo\Helper | Abstract Helper loading interface |
| \Tuxxedo\Input | Input filtering class, this class cleans data from |
| \Tuxxedo\Intl | Internationalization Interface |
| \Tuxxedo\Loader | Autoloader handler |
| \Tuxxedo\Options | Options class, allows the options registry entry to allow |
| \Tuxxedo\Registry | Registry class, this acts as a mixed singleton/registry |
| \Tuxxedo\Session | Session interface, this class is designed to be attached to |
| \Tuxxedo\Style | Styling API, this enables basic styling frontend for |
| \Tuxxedo\Template | Template class, this class serves as an object oriented way of creating |
| \Tuxxedo\Upload | Upload API |
| \Tuxxedo\User | User session class, this class manages the current user |
| \Tuxxedo\Utilities | Utilities class wrapper. This class wraps around the previously |
| \Tuxxedo\Version | Versioning class, contains all of the Core versioning |
| \Tuxxedo\Xml | XML Parser for Engine, this class works as a factory for a generic |
Generated by Tuxxedo Engine 1.3.0 "Intergalactic" Alpha 1 (experimental).


Provides a way to simulate from the prior distribution of Bayesian trees by Chipman et al. (1998) <doi:10.2307/2669832>. The prior distribution of Bayesian trees is highly dependent on the design matrix X, therefore using the suggested hyperparameters by Chipman et al. (1998) <doi:10.2307/2669832> is not recommended and could lead to unexpected prior distribution. This work is part of my master thesis (expected 2016).
| Version: | 1.0.1 |
| Imports: | stats |
| Suggests: | tgp, BayesTree, bartMachine, MASS |
| Published: | 2016-07-04 |
| Author: | Alexia Jolicoeur-Martineau |
| Maintainer: | Alexia Jolicoeur-Martineau <alexia.jolicoeur-martineau at mail.mcgill.ca> |
| License: | GPL-3 |
| NeedsCompilation: | no |
| CRAN checks: | BayesTreePrior results |
| Reference manual: | BayesTreePrior.pdf |
| Package source: | BayesTreePrior_1.0.1.tar.gz |
| Windows binaries: | r-devel: BayesTreePrior_1.0.1.zip, r-release: BayesTreePrior_1.0.1.zip, r-oldrel: BayesTreePrior_1.0.1.zip |
| OS X binaries: | r-release: BayesTreePrior_1.0.1.tgz, r-oldrel: BayesTreePrior_1.0.1.tgz |
| Old sources: | BayesTreePrior archive |
Please use the canonical form https://CRAN.R-project.org/package=BayesTreePrior to link to this page.


My test form
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bloch_multiplication(self,
k_x,
k_y,
nodes,
ref_im,
*matrices)
| source code
|
This function multiplies a given matrix
(in a future a given set of matrices), multiplies each Bloch boundary
node, by the phase factor correspondent with it's position.
Parameters:
-----------
k_x: Current value of the x component from the wavenumber vector
k_y: Current value of the y component from the wavenumber vector
nodes: Numpy array like matrix of node coordinates (n_nodes,3) where
coorsd(x,:)= x,y,z components of the node.
ref_im: A list of 2-column numpy arrays. Each array in the list
'ref_im', has in it's first column the reference node and on it's
second column the image node for that particular reference node.
matrices: Matrices to be operated.
Returns:
--------
matrices: The input matrix with all the phase multiplication operations
performed.
|


Track by alumni name
Track by alumni ID
Track by passout years
Track by organization
Update another passing year
Add an alumni
Modify existing passing years
Remove an alumni
Track Alumni
Manage Database


{% extends 'scs/base.html' %} {% block title %} Upload data {% endblock %} {% block page-title %} Upload Data   {% endblock%} {% block content-title %}
{% endblock %} {% block content %}Upload data to VPH-Share, be it structured, tabular data or unstructured images and scans, to make use of many time and cost saving facilites:
If you're new to VPH-Share and want to find out how the upload works, click here.
Otherwise, follow the relevant link below:
Tutorial (login required)
{% endif %}Data Publications Suite (login required)
{% endif %} {% if request.user.is_authenticated %} {% else %}FileStore (login required)
{% endif %}


| Module | SymetrieCom::Acts::NestedSet::InstanceMethods |
| In: |
lib/better_nested_set.rb
|
This module provides instance methods for an enhanced acts_as_nested_set mixin. Please see the README for background information, examples, and tips on usage.
By default, records are compared and sorted using the left column.
# File lib/better_nested_set.rb, line 451 451: def <=>(x) 452: self[left_col_name] <=> x[left_col_name] 453: end
Deprecated. Adds a child to this object in the tree. If this object hasn‘t been initialized, it gets set up as a root node.
This method exists only for compatibility and will be removed in future versions.
# File lib/better_nested_set.rb, line 755 755: def add_child(child) 756: transaction do 757: self.reload; child.reload # for compatibility with old version 758: # the old version allows records with nil values for lft and rgt 759: unless self[left_col_name] && self[right_col_name] 760: if child[left_col_name] || child[right_col_name] 761: raise ActiveRecord::ActiveRecordError, "If parent lft or rgt are nil, you can't add a child with non-nil lft or rgt" 762: end 763: base_set_class.update_all("#{left_col_name} = CASE \ 764: WHEN id = #{self.id} \ 765: THEN 1 \ 766: WHEN id = #{child.id} \ 767: THEN 3 \ 768: ELSE #{left_col_name} END, \ 769: #{right_col_name} = CASE \ 770: WHEN id = #{self.id} \ 771: THEN 2 \ 772: WHEN id = #{child.id} \ 773: THEN 4 \ 774: ELSE #{right_col_name} END", 775: scope_condition) 776: self.reload; child.reload 777: end 778: unless child[left_col_name] && child[right_col_name] 779: maxright = base_set_class.maximum(right_col_name, :conditions => scope_condition) || 0 780: base_set_class.update_all("#{left_col_name} = CASE \ 781: WHEN id = #{child.id} \ 782: THEN #{maxright + 1} \ 783: ELSE #{left_col_name} END, \ 784: #{right_col_name} = CASE \ 785: WHEN id = #{child.id} \ 786: THEN #{maxright + 2} \ 787: ELSE #{right_col_name} END", 788: scope_condition) 789: child.reload 790: end 791: 792: child.move_to_child_of(self) 793: # self.reload ## even though move_to calls target.reload, at least one object in the tests was not reloading (near the end of test_common_usage) 794: end 795: # self.reload 796: # child.reload 797: # 798: # if child.root? 799: # raise ActiveRecord::ActiveRecordError, "Adding sub-tree isn\'t currently supported" 800: # else 801: # if ( (self[left_col_name] == nil) || (self[right_col_name] == nil) ) 802: # # Looks like we're now the root node! Woo 803: # self[left_col_name] = 1 804: # self[right_col_name] = 4 805: # 806: # # What do to do about validation? 807: # return nil unless self.save 808: # 809: # child[parent_col_name] = self.id 810: # child[left_col_name] = 2 811: # child[right_col_name]= 3 812: # return child.save 813: # else 814: # # OK, we need to add and shift everything else to the right 815: # child[parent_col_name] = self.id 816: # right_bound = self[right_col_name] 817: # child[left_col_name] = right_bound 818: # child[right_col_name] = right_bound + 1 819: # self[right_col_name] += 2 820: # self.class.transaction { 821: # self.class.update_all( "#{left_col_name} = (#{left_col_name} + 2)", "#{scope_condition} AND #{left_col_name} >= #{right_bound}" ) 822: # self.class.update_all( "#{right_col_name} = (#{right_col_name} + 2)", "#{scope_condition} AND #{right_col_name} >= #{right_bound}" ) 823: # self.save 824: # child.save 825: # } 826: # end 827: # end 828: end
All nodes between two nodes, those nodes included in effect all ancestors until the other is reached
# File lib/better_nested_set.rb, line 668 668: def ancestors_and_self_through(other, scope = {}) 669: first, last = [self, other].sort 670: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND (#{last[left_col_name]} BETWEEN #{prefixed_left_col_name} AND #{prefixed_right_col_name}) AND #{prefixed_left_col_name} >= #{first[left_col_name]}", 671: :order => "#{prefixed_left_col_name}" }, scope) 672: end
Ancestors until the other is reached - excluding self
# File lib/better_nested_set.rb, line 675 675: def ancestors_through(other, scope = {}) 676: ancestors_and_self_through(other, scope) - [self] 677: end
Checks the left/right indexes of the entire tree that this node belongs to, returning the number of records checked. Throws ActiveRecord::ActiveRecordError if it finds a problem. This method is needed because check_subtree alone cannot find gaps between virtual roots, orphaned nodes or endless loops.
# File lib/better_nested_set.rb, line 718 718: def check_full_tree 719: total_nodes = 0 720: transaction do 721: # virtual roots make this method more complex than it otherwise would be 722: n = 1 723: roots.each do |r| 724: raise ActiveRecord::ActiveRecordError, "Gaps between roots in the tree containing record ##{r.id}" if r[left_col_name] != n 725: r.check_subtree 726: n = r[right_col_name] + 1 727: end 728: total_nodes = roots.inject(0) {|sum, r| sum + r.all_children_count + 1 } 729: unless base_set_class.count(:conditions => "#{scope_condition}") == total_nodes 730: raise ActiveRecord::ActiveRecordError, "Orphaned nodes or endless loops in the tree containing record ##{self.id}" 731: end 732: end 733: return total_nodes 734: end
Checks the left/right indexes of one node and all descendants. Throws ActiveRecord::ActiveRecordError if it finds a problem.
# File lib/better_nested_set.rb, line 708 708: def check_subtree 709: transaction do 710: self.reload 711: check # this method is implemented via #check, so that we don't generate lots of unnecessary nested transactions 712: end 713: end
Deprecated. Returns true if this is a child node
# File lib/better_nested_set.rb, line 462 462: def child? 463: parent_id = self[parent_col_name] 464: !(parent_id == 0 || parent_id.nil?) && (self[left_col_name] > 1) && (self[right_col_name] > self[left_col_name]) 465: end
Tests wether self is within scope of parent
# File lib/better_nested_set.rb, line 616 616: def child_of?(parent, scope = {}) 617: if !scope.empty? && parent.respond_to?(:child_by_id) 618: parent.child_by_id(self.id, scope).is_a?(self.class) 619: else 620: parent.respond_to?(left_col_name) && self[left_col_name] > parent[left_col_name] && self[right_col_name] < parent[right_col_name] 621: end 622: end
Returns this record‘s immediate children.
# File lib/better_nested_set.rb, line 644 644: def children(scope = {}) 645: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND #{prefixed_parent_col_name} = #{self.id}", :order => "#{prefixed_left_col_name}" }, scope) 646: end
# File lib/better_nested_set.rb, line 648 648: def children?(scope = {}) 649: children_count(scope) > 0 650: end
Returns a child collection for the requested ids within the scope of its children, otherwise empty array
# File lib/better_nested_set.rb, line 593 593: def children_by_id(*args) 594: scope = args.last.is_a?(Hash) ? args.pop : {} 595: ids = args.flatten.compact.uniq 596: self.class.find_in_nested_set(:all, { 597: :conditions => ["#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]}) AND #{self.class.table_name}.#{self.class.primary_key} IN (?)", ids] 598: }, scope) 599: end
# File lib/better_nested_set.rb, line 639 639: def children_count(scope= {}) 640: self.class.count_in_nested_set({ :conditions => "#{scope_condition} AND #{prefixed_parent_col_name} = #{self.id}" }, scope) 641: end
On destruction, delete all children and shift the lft/rgt values back to the left so the counts still work.
# File lib/better_nested_set.rb, line 430 430: def destroy_descendants # already protected by a transaction within #destroy 431: return if self[right_col_name].nil? || self[left_col_name].nil? || self.skip_before_destroy 432: reloaded = self.reload rescue nil # in case a concurrent move has altered the indexes - rescue if non-existent 433: return unless reloaded 434: dif = self[right_col_name] - self[left_col_name] + 1 435: if acts_as_nested_set_options[:dependent] == :delete_all 436: base_set_class.delete_all( "#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]})" ) 437: else 438: set = base_set_class.find(:all, :conditions => "#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]})", :order => "#{prefixed_right_col_name} DESC") 439: set.each { |child| child.skip_before_destroy = true; remove_descendant(child) } 440: end 441: base_set_class.update_all("#{left_col_name} = CASE \ 442: WHEN #{left_col_name} > #{self[right_col_name]} THEN (#{left_col_name} - #{dif}) \ 443: ELSE #{left_col_name} END, \ 444: #{right_col_name} = CASE \ 445: WHEN #{right_col_name} > #{self[right_col_name]} THEN (#{right_col_name} - #{dif} ) \ 446: ELSE #{right_col_name} END", 447: scope_condition) 448: end
Tests wether self is within immediate scope of parent
# File lib/better_nested_set.rb, line 625 625: def direct_child_of?(parent, scope = {}) 626: if !scope.empty? && parent.respond_to?(:direct_child_by_id) 627: parent.direct_child_by_id(self.id, scope).is_a?(self.class) 628: else 629: parent.respond_to?(parent_col_name) && self[parent_col_name] == parent.id 630: end 631: end
Returns a child collection for the requested ids within the scope of its immediate children, otherwise empty array
# File lib/better_nested_set.rb, line 607 607: def direct_children_by_id(*args) 608: scope = args.last.is_a?(Hash) ? args.pop : {} 609: ids = args.flatten.compact.uniq 610: self.class.find_in_nested_set(:all, { 611: :conditions => ["#{scope_condition} AND #{prefixed_parent_col_name} = #{self.id} AND #{self.class.table_name}.#{self.class.primary_key} IN (?)", ids] 612: }, scope) 613: end
# File lib/better_nested_set.rb, line 521 521: def first_sibling?(scope = {}) 522: self == first_sibling(scope) 523: end
Returns itself and all nested children. Pass :exclude => item, or id, or [items or id] to exclude one or more items and all of their descendants.
# File lib/better_nested_set.rb, line 575 575: def full_set(scope = {}) 576: if exclude = scope.delete(:exclude) 577: exclude_str = " AND NOT (#{base_set_class.sql_for(exclude)}) " 578: elsif new_record? || self[right_col_name] - self[left_col_name] == 1 579: return [self] 580: end 581: self.class.find_in_nested_set(:all, { 582: :order => "#{prefixed_left_col_name}", 583: :conditions => "#{scope_condition} #{exclude_str} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]})" 584: }, scope) 585: end
All children until the other is reached - including self
# File lib/better_nested_set.rb, line 685 685: def full_set_through(other, scope = {}) 686: first, last = [self, other].sort 687: self.class.find_in_nested_set(:all, 688: { :conditions => "#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{first[left_col_name]} AND #{first[right_col_name]}) AND #{prefixed_left_col_name} <= #{last[left_col_name]}", :order => "#{prefixed_left_col_name}" }, scope) 689: end
Insert a node at a specific position among the children of target.
# File lib/better_nested_set.rb, line 831 831: def insert_at(target, index = :last, scope = {}) 832: level_nodes = target.children(scope) 833: current_index = level_nodes.index(self) 834: last_index = level_nodes.length - 1 835: as_first = (index == :first) 836: as_last = (index == :last || (index.is_a?(Fixnum) && index > last_index)) 837: index = 0 if as_first 838: index = last_index if as_last 839: if last_index < 0 840: move_to_child_of(target) 841: elsif index >= 0 && index <= last_index && level_nodes[index] 842: if as_last && index != current_index 843: move_to_right_of(level_nodes[index]) 844: elsif (as_first || index == 0) && index != current_index 845: move_to_left_of(level_nodes[index]) 846: elsif !current_index.nil? && index > current_index 847: move_to_right_of(level_nodes[index]) 848: elsif !current_index.nil? && index < current_index 849: move_to_left_of(level_nodes[index]) 850: elsif current_index.nil? 851: move_to_left_of(level_nodes[index]) 852: end 853: end 854: end
# File lib/better_nested_set.rb, line 531 531: def last_sibling?(scope = {}) 532: self == last_sibling(scope) 533: end
Returns this record‘s terminal children (nodes without children).
# File lib/better_nested_set.rb, line 656 656: def leaves(scope = {}) 657: self.class.find_in_nested_set(:all, 658: { :conditions => "#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]}) AND #{prefixed_left_col_name} + 1 = #{prefixed_right_col_name}", :order => "#{prefixed_left_col_name}" }, scope) 659: end
Returns the count of this record‘s terminal children (nodes without children).
# File lib/better_nested_set.rb, line 662 662: def leaves_count(scope = {}) 663: self.class.count_in_nested_set({ :conditions => "#{scope_condition} AND (#{prefixed_left_col_name} BETWEEN #{self[left_col_name]} AND #{self[right_col_name]}) AND #{prefixed_left_col_name} + 1 = #{prefixed_right_col_name}" }, scope) 664: end
Returns the level of this object in the tree, root level being 0.
# File lib/better_nested_set.rb, line 562 562: def level(scope = {}) 563: return 0 if self[parent_col_name].nil? 564: self.class.count_in_nested_set({ :conditions => "#{scope_condition} AND (#{self[left_col_name]} BETWEEN #{prefixed_left_col_name} AND #{prefixed_right_col_name})" }, scope) - 1 565: end
Make this node a child of target (you can pass an object or just an id). Unsaved changes in either object will be lost. Raises ActiveRecord::ActiveRecordError if it encounters a problem.
# File lib/better_nested_set.rb, line 870 870: def move_to_child_of(target) 871: self.move_to target, :child 872: end
Move this node to the left of target (you can pass an object or just an id). Unsaved changes in either object will be lost. Raises ActiveRecord::ActiveRecordError if it encounters a problem.
# File lib/better_nested_set.rb, line 858 858: def move_to_left_of(target) 859: self.move_to target, :left 860: end
Move this node to the right of target (you can pass an object or just an id). Unsaved changes in either object will be lost. Raises ActiveRecord::ActiveRecordError if it encounters a problem.
# File lib/better_nested_set.rb, line 864 864: def move_to_right_of(target) 865: self.move_to target, :right 866: end
Returns next sibling of node or nil if there is none.
# File lib/better_nested_set.rb, line 545 545: def next_sibling(num = 1, scope = {}) 546: scope[:limit] = num 547: siblings = next_siblings(scope) 548: num == 1 ? siblings.first : siblings 549: end
Returns all siblings to the right of self, in ascending order, so the first sibling is the one closest to the right of self
# File lib/better_nested_set.rb, line 511 511: def next_siblings(scope = {}) 512: self.class.find_in_nested_set(:all, 513: { :conditions => ["#{scope_condition} AND #{sibling_condition} AND #{self.class.table_name}.id != ? AND #{prefixed_left_col_name} > ?", self.id, self[right_col_name]], :order => "#{prefixed_left_col_name} ASC"}, scope) 514: end
Returns previous sibling of node or nil if there is none.
# File lib/better_nested_set.rb, line 537 537: def previous_sibling(num = 1, scope = {}) 538: scope[:limit] = num 539: siblings = previous_siblings(scope) 540: num == 1 ? siblings.first : siblings 541: end
Returns all siblings to the left of self, in descending order, so the first sibling is the one closest to the left of self
# File lib/better_nested_set.rb, line 505 505: def previous_siblings(scope = {}) 506: self.class.find_in_nested_set(:all, 507: { :conditions => ["#{scope_condition} AND #{sibling_condition} AND #{self.class.table_name}.id != ? AND #{prefixed_right_col_name} < ?", self.id, self[left_col_name]], :order => "#{prefixed_left_col_name} DESC" }, scope) 508: end
Re-calculate the left/right values of all nodes in this record‘s tree. Can be used to convert an ordinary tree into a nested set.
# File lib/better_nested_set.rb, line 737 737: def renumber_full_tree 738: indexes = [] 739: n = 1 740: transaction do 741: for r in roots # because we may have virtual roots 742: n = 1 + r.calc_numbers(n, indexes) 743: end 744: for i in indexes 745: base_set_class.update_all("#{left_col_name} = #{i[:lft]}, #{right_col_name} = #{i[:rgt]}", "#{self.class.primary_key} = #{i[:id]}") 746: end 747: end 748: ## reload? 749: end
Reorder children according to an array of ids
# File lib/better_nested_set.rb, line 914 914: def reorder_children(*ids) 915: transaction do 916: ordered_ids = ids.flatten.uniq 917: current_children = children({ :conditions => { :id => ordered_ids } }) 918: current_children_ids = current_children.map(&:id) 919: ordered_ids = ordered_ids & current_children_ids 920: return [] unless ordered_ids.length > 1 && ordered_ids != current_children_ids 921: perform_reorder_of_children(ordered_ids, current_children) 922: end 923: end
Returns this record‘s root ancestor.
# File lib/better_nested_set.rb, line 473 473: def root(scope = {}) 474: # the BETWEEN clause is needed to ensure we get the right virtual root, if using those 475: self.class.find_in_nested_set(:first, { :conditions => "#{scope_condition} \ 476: AND (#{prefixed_parent_col_name} IS NULL OR #{prefixed_parent_col_name} = 0) AND (#{self[left_col_name]} BETWEEN #{prefixed_left_col_name} AND #{prefixed_right_col_name})" }, scope) 477: end
Returns the root or virtual roots of this record‘s tree (a tree cannot have more than one real root). See the explanation of virtual roots in the README.
# File lib/better_nested_set.rb, line 480 480: def roots(scope = {}) 481: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND (#{prefixed_parent_col_name} IS NULL OR #{prefixed_parent_col_name} = 0)", :order => "#{prefixed_left_col_name}" }, scope) 482: end
Returns an array of all parents plus self, starting with the root.
# File lib/better_nested_set.rb, line 495 495: def self_and_ancestors(scope = {}) 496: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND (#{self[left_col_name]} BETWEEN #{prefixed_left_col_name} AND #{prefixed_right_col_name})", :order => "#{prefixed_left_col_name}" }, scope) 497: end
Returns all the children of this node‘s parent, including self.
# File lib/better_nested_set.rb, line 553 553: def self_and_siblings(scope = {}) 554: if self[parent_col_name].nil? || self[parent_col_name].zero? 555: [self] 556: else 557: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND #{sibling_condition}", :order => "#{prefixed_left_col_name}" }, scope) 558: end 559: end
All siblings until the other is reached - including self
# File lib/better_nested_set.rb, line 692 692: def self_and_siblings_through(other, scope = {}) 693: if self[parent_col_name].nil? || self[parent_col_name].zero? 694: [self] 695: else 696: first, last = [self, other].sort 697: self.class.find_in_nested_set(:all, { :conditions => "#{scope_condition} AND #{sibling_condition} AND (#{prefixed_left_col_name} BETWEEN #{first[left_col_name]} AND #{last[right_col_name]})", :order => "#{prefixed_left_col_name}" }, scope) 698: end 699: end
On creation, automatically add the new node to the right of all existing nodes in this tree.
# File lib/better_nested_set.rb, line 423 423: def set_left_right # already protected by a transaction within #create 424: maxright = base_set_class.maximum(right_col_name, :conditions => scope_condition) || 0 425: self[left_col_name] = maxright+1 426: self[right_col_name] = maxright+2 427: end
This takes care of valid queries when called on a root node
# File lib/better_nested_set.rb, line 418 418: def sibling_condition 419: self[parent_col_name] ? "#{prefixed_parent_col_name} = #{self[parent_col_name]}" : "(#{prefixed_parent_col_name} IS NULL OR #{prefixed_parent_col_name} = 0)" 420: end
Deprecated. Returns true if we have no idea what this is
# File lib/better_nested_set.rb, line 468 468: def unknown? 469: !root? && !child? 470: end
Calculate the least amount of swap steps to achieve the requested order
# File lib/better_nested_set.rb, line 1080 1080: def calculate_reorder_steps(ordered_ids, current) 1081: steps = [] 1082: current.each_with_index do |source, idx| 1083: new_idx = ordered_ids.index(source.id) 1084: steps << [source, new_idx] if idx != new_idx 1085: end 1086: steps 1087: end
Actually perform the ordering using calculated steps
# File lib/better_nested_set.rb, line 1065 1065: def perform_reorder_of_children(ordered_ids, current) 1066: steps = calculate_reorder_steps(ordered_ids, current) 1067: steps.inject([]) do |result, (source, idx)| 1068: target = current[idx] 1069: if source.id != target.id 1070: source.swap(target, false) 1071: from = current.index(source) 1072: current[from], current[idx] = current[idx], current[from] 1073: result << source 1074: end 1075: result 1076: end 1077: end


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Stefan Bonea
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I like to code and code and code again...
I enjoy writting code in these programming languages
Just drop by for a beer anytime. My Website


The rest of Chap 4 will be seen later in the course and it is NOT covered in midterm 1.
An object moving in two dimensions will make a trajectory in the x-y plane. The instantaneous velocity is tangent to the trajectory and will generally have x and y component.
2D motion is basically 1D motion twice and all the relations we have seen still hold.
For the next question you need to use the definition of average acceleration
Motion diagram in 2D works the same way as in 1D. The velocity vectors connect two points in each motion diagram while the acceleration vector is shown on top the of the dot and come from the vector subtraction of the velocity after - velocity before the point.
The length and direction of the acceleration vector is hard to guess at first. Only careful subtraction of the velocity vectors will yield the answers.
Here is an example of 2D motion diagram with all acceleration vectors. The explicit vector subtraction is shown for point 4. Make sure you understand how the other acceleration vectors were obtained.


Bangalore Lake Dashboard
Jakkur
Biodiversity
Bathymetry
Maps
Water Quality
Water Balance
Local Weather
Contact
Jakkur Lake Level
Date: 28/09/2016
Prepared By: Sayam Roy
Download File:
download
Jakkur STP Inlet Volume
Date: 28/09/2016
Prepared By: Sayam Roy
Download File:
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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.
Inherited Properties:
+ block_size (File System) {4096} (cramfs has always a blocksize of 4KB) + endianness (File System) + volume_name (File System)
Individual Properties:
- start_sector {#int} - compressed_size {#unsigned long long} - data_size {#unsigned long long}
Found in [linux.c]
Instance of File System.
Inherited Properties:
+ volume_name (File System) {#char[301]} (volume name may be longer here than the usual 256 chars) + volume_size (File System)
Found in [linux.c]
Instance of File System.
Inherited Properties:
+ version (File System) + block_size (File System) + endianness (File System)
Individual Properties:
- minor_version {#int} - compressed_size {#unsigned long long}
Found in [linux.c]
Instance of File System.
no properties
Found in [apple.c]
Instance of File System.
Inherited Properties:
+ version (File System) + volume_size (File System) + block_size (File System)
Individual Properties:
- name_size {#int}
Found in [amiga.c, linux.c]
Instance of File System.
Inherited Properties:
+ volume_size (File System) + block_size (File System)
Found in [dos.c]
Instance of File System.
(3DO CD-ROM file system)
no properties
Found in [cdrom.c]


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August 22
Availability Zones in Openstack and Openshift (Part 1)
May 23
Deploying MetalLB with BGP on Openstack (Part 2)
May 22
Deploying MetalLB with BGP on Openstack (Part 1)
May 9
Handling the switch to the Cloud Controller Manager (CCM) with OpenShift Operators


$D1D3/53715: Get drive number Jump from $CA53, $CA66, $CF26, $D183, $D1A3, $E03C, $E31C: D1D3: 20 93 DF JSR $DF93 ; get drive number D1D6: AA TAX D1D7: BD 5B 02 LDA $025B,X D1DA: 29 01 AND #$01 ; isolate drive number D1DC: 85 7F STA $7F ; and save D1DE: 60 RTS Previous Page / Next Page