The architecture of the OA4MP server (all versions, both based on OAuth 1.0a and OAuth 2.0) is designed to accommodate extensions. The delegation exchanges should, in general, never be altered since there is a high risk of making the system insecure, so hooks have been added in all the places that should let a developer extend the system as safely as possible. There are two main mechanisms involved. These are
These will be discussed in turn. To use this you should check out the most current maven module of oa4mp-webapp and create your own package under src/main/java which will hold any custom classes you need to write. Specifying these in the deployment descriptor should have them compiled and deployed automatically.
Internally, the state of the service is kept in a transaction. This has all the information available to the service on each leg of the delegation. Each servlet implements the TransactionFilter interface, which has two methods:
public void preprocess(TransactionState t); public void postprocess(TransactionState t);
The lifecycle is straightforward: A request is received by the servlet and parsed. The transaction is retrieved from storage and validity checks are made. Once a token is issued, the preprocess method is called. This allows you to intercept the state of the transaction before anything is written to the output stream. Once the output stream is written, postprocess is invoked.
The transactionState contains the original servlet request and response, any parsed parameters (this may be null) and the currently active transaction. To save a transaction, call it t, you must call the store:
getTransactionStore().save(t);
Servlets that present something to the user implement the presentation interface. This is extremely similar to the transaction filtering above. The difference being that it is assumed you will be customizing the response for any JSP pages, and an additional handleException method that is invoked on any error that lets you control what is displayed to the user. The entire API then is
public void prepare(PresentationState p); public void present(PresentationState p); public void handleException(PresentationState p, Throwable t);
Transaction filtering is still active, so if you just need some special processing and do not need to change the presentation layer, use that.
| Servlet name | Purpose | Transaction filtering | Presentation state |
| RegistrationServlet | Handles registration request for the service. | preprocess:invoked immediately before prepare. Note there is no parameter map or transaction for this, so these are null | prepare:invoked before anything else. First call in the servlet |
| postprocess:invoked immediately before present. There is no parameter map or transaction either. | present:invoked immediately before displaying a page. | ||
| InitServlet | Starts the delegation process. Sets initial state and issues a token. | preprocess: invoked after the request for a token has been made internally. | -- |
| postprocess: invoked immediately before return, after writing to the output stream. | -- | ||
| AuthorizationServlet | Authentication with MyProxy. The cert is fetched. The user is redirected to the callback url at the end. | preprocess:invoked after getting the username and password, immediately before fetching the cert | prepare:invoked as soon as the state is determined and the pending transaction has been retrieved. State is set depending upon user action -- see the documentation for state codes if this is of interest. |
| postprocess:invoked immediately before invoking present | present:invoked immediately before page display. This mostly just forwards to the correct JSP page. | ||
| AccessTokenServlet | Issues an access token so the client can retrieve a certificate. | preprocess:invoked as soon as the transaction is found to be valid, but before the request is parsed, so the paramter map is null | -- |
| postprocess:invoked after the access token has been issued and the transaction state has been updated. This is the last call in the servlet. The stream has been written at this point. | -- | ||
| CertServlet | Retrieves the certificate that has been previously fetched and returns it to the client. | preprocess:invoked after parsing the servlet request since this is needed to retrieve the transaction, but before the response is written | -- |
| postprocess:invoked immediately before returning, after the response stream is written. | -- |
Sometimes a service need to customize the cert request. Here is a complete example of how to do that in OA4MP OAuth 1.0a. You would want to intercept the request in the AuthorizationServlet, right before the cert is actually retrieved. Simply override the postprocess method:
package my.package;
import edu.uiuc.ncsa.security.util.crypto.CertUtil;
import edu.uiuc.ncsa.security.util.crypto.KeyUtil;
import edu.uiuc.ncsa.myproxy.oa4mp.server.OA4MPServiceTransaction;
import edu.uiuc.ncsa.myproxy.oa4mp.server.servlet.AuthorizationServlet;
import java.security.KeyPair;
public void MyAuthServlet extends AuthorizationServlet{
@Override
public void preprocess(transactionState state) throws Throwable{
super.preprocess(state); // required to get certain security headers set in response!
OA4MPServiceTransaction t = (OA4MPServiceTransaction) state.getTransaction(); // Here is how to use the utilities to create a new cert request
KeyPair kp = KeyUtil.generateKeyPair();
t.setCertReq(CertUtil.createCertRequest(kp)); // Note that if you will need the keypair later, you will have to store it at this point.
// You can use other information, such as the username or lifetime of the cert
getTransactionStore().save(t);
}
}
To use this, deploy this in place of the standard AuthorizationServlet in the deployment descriptor (web.xml file).


ngStyle directive is a attribute directive. It helps us to add dynamic css way of using it as
[ngStyel]="your conditional css" or [style.width.%] with property name.
dynamic css with value =>
[ngStyle]="'background-color':student.colorCode"
dynamic css property =>
[style.width.%]="student.attendance"
adding dynamic css collection which is coming from object
[ngStyle]="customStyle"
| Code |
Name |
City |
Stream |
Status |
|
{{student.colorCode}}
|
{{student.name}} |
{{student.city}} |
{{student.stream}} |
|


{%extends 'app/base.html'%} {%block body_block%}
{{post_filled_form.title}}
{{post_filled_form.info}}


About Kyle Maxwell {% capture about_include %}{% include about.md %}{% endcapture %} {{ about_include | markdownify }}


Full Stack Web Developer with a degree in Business Management and Marketing. Over 30 years of experience in network management, application review, design, implementation and system analysis. Provide training and mentoring across diverse teams to deliver solutions to meet the needs of the business.


My Background
Current graduate student at Teachers College, Columbia University, working towards an M.A. in Psychology in Education as part of the Spirituality Mind Body Institute
Graduate of Boston University, School of Education, with an M.Ed. in Curriculum and Instruction
Alumna of Teach for America, serving as an 8th-grade science teacher for 2 years at Roxbury Prep Charter School (Uncommon Schools) in Boston, MA
Certified Hatha yoga instructor, having taught over 1000 Hatha yoga classes.
Graduate of the University of Chicago with General Honors, with a B.A. in English Language & Literature
Raised in a conservative Evangelical Christian context


A {{ form.poemstyle(class='select-field') }} in the style of {{ form.textcorpus(class='select-field') }}!
{{ form.submit(class="btn btn-primary") }} I'm feeling lucky!
A {{ poemstyle }} in the style of {{ textcorpus }}
{{ poem }}


--- title: All Regions layout: default menu: regioncards searchcontext: in all regions level: home ---


--- layout: post status: publish published: true title: An Apology About My Email List author: Ryan Hayden wordpress_id: 914 wordpress_url: http://ryan-hayden.com/?p=914 date: '2013-03-11 12:16:45 -0500' date_gmt: '2013-03-11 17:16:45 -0500' categories: - Personal tags: [] ---
My email list is broken. It has for weeks been sending out empty emails. I've been trying to get it fixed, but have been unable to. So I'm turning it off.
If your email inbox has been barraged with empty emails, I'm sorry. Maybe some point in the future I can get it working right.


Request Class
The Request class processes URI requests. It is used by Fuel in index.php to process the users URI request, and you need it to generate requests in an HMVC context.
factory($uri = null, $route = true)
The factory method returns a new request object.
| Static |
Yes |
| Parameters |
| Param |
Default |
Description |
| $uri |
null
|
The URI being requested. If this parameter is not present, the URI class will be used to detect the URI. |
| $route |
true
|
If true, the URI passed or detected will be processed by the routing class. If no route is present, a 404 will be generated. If you request a non-public URI, set this to false. |
|
| Returns |
Fuel\Core\Request Object |
| Example |
// create the request object for the admin controller, login method
$request = Request::factory('admin/login');
// note that this only creates the object, it does not execute the request!
|
execute()
The execute method executes a request, and stores the resulting response in the request object to be used later.
| Static |
No |
| Parameters |
No |
| Returns |
Fuel\Core\Request Object |
| Example |
// create and execute the request object for the admin controller, login method
$request = Request::factory('admin/login')->execute();
|
response()
The response method fetches the response object of the executed request.
| Static |
No |
| Parameters |
No |
| Returns |
Fuel\Core\Response Object |
| Example |
// execute the request, fetch the response, and display it
$response = Request::factory('admin/login')->execute()->response();
echo $response;
// The Request object contains a __toString() method as an alternative way to fetch the output
$output = Request::factory('admin/login')->execute();
echo $output;
|
parent()
The Request that created this Request.
| Static |
No |
| Parameters |
No |
| Returns |
Fuel\Core\Request Object or null when it's the main request |
| Example |
// get the parent of the current active Request
$parent = Request::active()->parent();
|
children()
The Request objects that were created during this Request.
| Static |
No |
| Parameters |
No |
| Returns |
Array of Fuel\Core\Request Objects |
| Example |
// get the Requests that were created during the main Request
$children = Request::main()->children();
|
show_404($return = false)
The show_404 method will display or return the application's 404 page. If none is configured in your config routes.php, the Fuel default 404 page will be used instead. If the configured 404 route is incorrect, an error will be thrown.
| Static |
Yes |
| Parameters |
| Param |
Default |
Description |
| $return |
false
|
If false, the result will be echoed out. If true, it will be returned. |
|
| Returns |
If $return is false, the method will exit. If not, it will return the html of the 404 page configured. |
| Example |
Request::show_404();
|
main()
The main method returns the main Request instance (the one created by the initial page request).
| Static |
Yes |
| Parameters |
No |
| Returns |
Fuel\Core\Request Object, or false if no main request instance exists. |
| Example |
$main = Request::main();
|
active()
The active method returns the currently active Request instance.
| Static |
Yes |
| Parameters |
No |
| Returns |
Fuel\Core\Request Object, or false if no active request instance exists. |
| Example |
$active = Request::active();
|
add_path($path, $prefix = false)
The add_path method allows you to add a search path to the current request instance. The search paths are used by Fuel::find_file() to locate files within your application.
| Static |
No |
| Parameters |
| Param |
Default |
Description |
| $path |
required |
Path to be added to the list of Request local search paths |
| $prefix |
false
|
If false, the path will be appended to the search path. If true, it will be prepended. |
|
| Returns |
void |
| Example |
// add the applications myfiles folder to the search path of the active request instance
Request::active()->add_path(APPPATH.'myfiles'.DS);
|
get_paths()
The get_paths method returns the defined list of search paths.
| Static |
No |
| Parameters |
No |
| Returns |
void |
| Example |
// get the defined search paths of the active request instance
$paths = Request::active()->get_paths();
|


Dear Sir. May I seek your indulgence to introduce my humble self. I am Kokor Mobutu, the son of the late Zaire Republic President, Mobutu Sese Seko. Before the death of my father, he kept in my custody the sum of USD 30 Million ( Thirty million United States Dollars ) this money emanated from the sales of diamonds he made when he was still on the throne. My father lodged this money in a security company outside our country for security reasons and because of the political instability in my country. My Father introduced me to the security company shortly before his death. He however deposited this money without any name rather, with coded numbers which is in my possession. With my father dead, my life was at great risk, I therefore had to leave my country under cover to Spain. Now, I have decided to invest this money in a suitable and conducive environment. At this point, I now seek your assistance to transfer this money to your bank account for proper use. 20% of the total money will be yours after the transfer and 5% for any expenditure we might incur in the process while the balance will be for me. On the receipt of your positive response to assist me on this project, all information related to the project will be made available to you on request. This business is 100% risk free as long as the confidentiality the business needs is observed. For this business to take off, your bank particulars where this fund will be paid into is required. You can always reach me on my E Mail<EMAIL_ADDRESS>or telephone number-00 346 099 146 24 Warm Regards, Kokor


Javascript Quiz
Start
Highscores
Question
A
This is an option
B
So is this
C
And this
D
Maybe even this


public class PortConnector extends Stream
This works on the devices and on JDK (in this case, it uses javax.comm, which must be installed separately)
When a serial port is created, an attempt is made to open the port. If the open attempt is successful, the port will remain open until close() is called. If close() is never called, the port will be closed when the object is garbage collected.
Here is an example showing data being written and read from a serial port:
PortConnector port = new PortConnector(0, 9600); DataStream ds = new DataStream(port); ds.writeCString("Hello...\r\n"); port.close();On JDK, you can define a file called serial.properties with the number and ports to be used:
| Modifier and Type | Field and Description |
|---|---|
static int |
BLUETOOTH
Bluetooth: open the built-in Bluetooth discovery dialog,
then establish a Serial Port Profile (just serial emulation across
Bluetooth, using the RFComm BT layer) virtual serial port connection.
|
static int |
DEFAULT
Default Port (cradle)
|
static int |
IRCOMM
IrCOMM Port (Serial Connection on top of IrDA Stack)
|
static int |
PARITY_EVEN
Used in the constructor to define the parity
|
static int |
PARITY_NONE
Used in the constructor to define the parity
|
static int |
PARITY_ODD
Used in the constructor to define the parity
|
int |
readTimeout
Defines the read timeout, in milliseconds.
|
static int |
readTries
Set this to a value that will be used to keep trying to read further while something is available.
|
static int |
SIR
SIR Port (Physical Layer of IrDA Stack).
|
boolean |
stopWriteCheckOnTimeout
Set to false to not let the timeout error stop the write check loop.
|
static int |
USB
USB Endpoint 2 Port
|
int |
writeTimeout
Defines the write timeout, in milliseconds.
|
skipBuffer
| Constructor and Description |
|---|
PortConnector(int number,
int baudRate)
Open a port with settings of 8 bits, no parity and 1 stop bit.
|
PortConnector(int number,
int baudRate,
int bits,
boolean parity,
int stopBits)
Opens a port.
|
PortConnector(int number,
int baudRate,
int bits,
int parity,
int stopBits)
Opens a port.
|
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Closes the port.
|
protected void |
finalize() |
int |
readBytes(byte[] buf,
int start,
int count)
Reads bytes from the stream.
|
int |
readCheck()
Returns the number of bytes currently available to be read from the
port's queue.
|
void |
setFlowControl(boolean on)
Turns RTS/CTS flow control (hardware flow control) on or off.
|
int |
writeBytes(byte[] buf,
int start,
int count)
Writes to the port.
|
asInputStream, asOutputStream, asStream, asStream, skipBytes, wrapInputStream, wrapInputStreamToStream, write, writeBytes, writeBytes, writeBytes
public int writeTimeout
public int readTimeout
public boolean stopWriteCheckOnTimeout
public static final int DEFAULT
public static final int IRCOMM
public static final int SIR
public static final int USB
public static final int BLUETOOTH
public static final int PARITY_NONE
public static final int PARITY_EVEN
public static final int PARITY_ODD
public static int readTries
public PortConnector(int number, int baudRate, int bits, boolean parity, int stopBits) throws IllegalArgumentIOException, IOException
number
- port number. In Windows, this is the number of the COM port.baudRate
- baud ratebits
- bits per char [5 to 8]parity
- true for even parity, false for no paritystopBits
- number of stop bitsIllegalArgumentIOException
IOException
setFlowControl(boolean)
,
PortConnector(int, int, int, int, int)
public PortConnector(int number, int baudRate, int bits, int parity, int stopBits) throws IllegalArgumentIOException, IOException
On Windows devices, port numbers map to COM port numbers. For example, serial port 2 maps to "COM2:".
Here is an example showing how to open the serial port of a Palm OS device at 9600 baud with settings of 8 bits, no partity and one stop bit (8/N/1):
PortConnector port = new PortConnector(0, 9600, 8, false, 1);Here is an example of opening serial port COM2: on a Windows device:
PortConnector port = new PortConnector(2, 57600, 8, false, 1);No serial XON/XOFF flow control (commonly called software flow control) is used and RTS/CTS flow control (commonly called hardware flow control) is turn on by default on all platforms but Windows CE. The parity setting must be one of the constants PARITY_NONE, PARITY_EVEN, PARITY_ODD. For Palm OS, PARITY_ODD turns on XON/XOFF mode.
number
- port number. In Windows, this is the number of the COM port. On Windows and Palm OS, you can pass
a 4-letter that indicates the connection that will be used. For example, on Palm OS you could use Convert.chars2int("rfcm")
or in Windows CE use Convert.chars2int("COM4")
.baudRate
- baud ratebits
- bits per char [5 to 8]parity
- of the constants PARITY_NONE, PARITY_EVEN, PARITY_ODD. For Palm OS, PARITY_ODD turns on XonXoff mode.stopBits
- number of stop bitsIllegalArgumentIOException
IOException
setFlowControl(boolean)
public PortConnector(int number, int baudRate) throws IllegalArgumentIOException, IOException
number
- port number. On Windows, this is the number of the COM port.baudRate
- baud rateIllegalArgumentIOException
IOException
PortConnector(int, int, int, int, int)
public void close() throws IOException
close
in interface java.io.Closeable
close
in interface totalcross.lang.AutoCloseable
IOException
- If an I/O error occurs.public final void setFlowControl(boolean on) throws IOException
on
- pass true to set flow control on and false to set it offIOException
public int readBytes(byte[] buf, int start, int count) throws IOException
Stream
readBytes
in class Stream
buf
- the byte array to read data intostart
- the start position in the arraycount
- the number of bytes to readIOException
public final int readCheck() throws IOException
IOException
public int writeBytes(byte[] buf, int start, int count) throws IOException
IOException
if an error prevented the write operation from occurring. If data
can't be written to the port and flow control is on, the write
operation will time out and fail after approximately 2 seconds.writeBytes
in class Stream
buf
- the byte array to write data fromstart
- the start position in the byte arraycount
- the number of bytes to writeIOException
protected void finalize()
finalize
in class totalcross.lang.Object


Krysta works on quantum algorithms and how to implement them, ranging from how to code in a high-level programming language, to how run these programs in hardware.
She is the senior engineering manager of Patreon, a startup helping artists, musicians and other creative people get paid for their work by selling subscriptions.


Collector Yumi:
Oh, dear. How could you forget something so important?
In order to open the eastern building entrance, you must take the middle road after entering through the western entrance and turning south at the first corner. That's right, isn't it?
Here, look, this is the map.
Look at the map.


(For a full list see below or go to Google Scholar, ResearcherID)
Our first completely home-built STM is alive! And it has the world’s highest resonance frequency.
I Battisti, G Verdoes, K van Oosten, KM Bastiaans, and MP Allan
Rev. Sci. Instrum. 89, 123705 (2018)
Using our newly developed noise-spectroscopy technique we discover charge trapping in a cuprate high-temperature superconductor.
KM Bastiaans, D Cho, T Benschop, I Battisti, Y Huang, MS Golden, Q Dong, Y Jin, J Zaanen, MP Allan
Nature Physics 14, 1183 (2018)
Instrument details in Rev. Sci. Instrum. 89, 093709 (2018)
See also quantum universe (in dutch), Phys.org , Leiden University news, UvA news.
We introduce a platform for bringing new, device-based functionality to STM, with the goal of utilizing decades of progress in device engineering for the field of scanning probe.
M Leeuwenhoek, RA Norte, KM Bastiaans, Doohee Cho, I Battisti, YaM Blanter, S Gröblacher, MP Allan
We propose an approach to transform a ‘pristine’ material into a better (meta-) superconductor by making use of modern fabrication techniques – designing and engineering the electronic properties of thin films via periodic patterning on the nanoscale.
MP Allan, MH Fischer, O Ostojic, A Andringa
We develop a simple model to interpret STM results on lightly doped Mott insulators, and find that the effective Mott gap measured by STM correspons to the one measured with other techniques when taking into account the poor electronic screeing.
I Battisti, V Fedoseev, KM Bastiaans, A de la Torre, RS Perry, F Baumberger, MP Allan
Phys. Rev. B 95, 235141, Editors’ suggestion (2017)
We discover of electronic order, pseudo gap phase separation and an impurity-band Mott transition in an iridate compound, cuprate-style. Along the way, we gained unique knowledge on how a Mott state collapses.
I. Battisti* & K.M. Bastiaans*, V. Fedoseev, A. de la Torre, N. Iliopoulos, A. Tamai, E.C. Hunter, R.S. Perry, J. Zaanen, F. Baumberger, M.P. Allan
See also Leiden University news by Erik Arends, Phys.org
Both the density of states and the QPI dispersion of LiFeAs shows signatures of electron-boson coupling. Comparing these with fingerprints of different boson couplings to conclude that these signatures stem from AF spin fluctuations.
MP Allan* & Kyungmin Lee* & AW Rost*, MH Fischer, F Massee, K Kihou, C-H Lee, A Iyo, H Eisaki, T-M Chuang, AP Mackenzie, JC Davis, DJ Scalapino, E-A Kim
See also Cornell Chronicle by Anne Ju, Phys.org
The heavy Fermion superconductor CeCoIn5 has a d-wave gap with nodes along the (1,1) direction, as we find using QPI.
MP Allan* & F Massee*, DK Morr, J van Dyke, AW Rost, AP Mackenzie, C Petrovic, JC Davis
Featured in ‘News and Views’ by L Taillefer
See also Phys.org, DoE headliner
Using APRES, we find that the bands in Sr3Ru2O7 look more like in heavy fermion material than in a normal metal. We present a detailed investigation into the formation of this particular electronic structure.
MP Allan, A Tamai, E Rozbicki, MH Fischer, J Voss, PDC King, W Meevasana, S Thirupathaiah, E Rienks, J Fink, A Tennant, RS Perry, JF Mercure, MA Wang, J Lee, CJ Fennie, E-A Kim, MJ Lawler, KM Shen, AP Mackenzie, Z-X Shen, F Baumberger
New Journal of Physics 15, 063029 (2013)
We elucidate on the formation of the electronic nematic state in Co-CaFe2As2, finding that the Cobalt dopant atoms play a key role.
MP Allan, T-M Chuang, F Massee, Y Xie, N Ni, SL Bud’ko, GS Boebinger, Q Wang, DS Dessau, PC Canfield, MS Golden, JC Davis
See also Tech Connect by Jennifer Rocha, Phys.org by Bill Steele
In contrast to earlier photoemission reports, we show that the gaps in iron based superconductors are not isotropic but modulated with angle.
MP Allan⋆ & AW Rost⋆, AP Mackenzie, Y Xie, JC Davis, K Kihou, CH Lee, A Iyo, H Eisaki, T-M Chuang
See also Cornell Cornincle by Bill Steele, Eureka Alert
We discovered an electronic nematic in the iron based superconductor Co-CaFe2As2! This state is by now confirmed and quite well characterized by transport, photoemission, and more SI-STM experiments.
T-M Chuang* & MP Allan*, J Lee, Y Xie, N Ni, SL Bud’ko, GS Boebinger PC Canfield, JC Davis
Featured in a ‘Perspective’ by E Fradkin & SA Kivelson
See also Article on NewScientist by Colin Barras
Hexagonal boron nitride shows fancy superstructures on the Mo(111) surface.
MP Allan, S Berner, M Corso, T Greber, J Osterwalder
Nanoscale Research Letters 2, 94 (2007)
Definition of design guidelines, construction and performance of an ultra-stable scanning tunneling microscope for spectroscopic imaging
I Battisti, G Verdoes, K van Oosten, KM Bastiaans, and MP Allan
Rev. Sci. Instrum. 89, 123705 (2018)
Charge trapping and super-Poissonian noise centres in a cuprate superconductor
KM Bastiaans, D Cho, T Benschop, I Battisti, Y Huang, MS Golden, Q Dong, Y Jin, J Zaanen, MP Allan
Nature Physics 14, 1183 (2018)
Amplifier for scanning tunneling microscopy at MHz frequencies
KM Bastiaans, T Benschop, D Chatzopoulos, D Cho, Q Dong, Y Jin, MP Allan
Rev. Sci. Instrum. 89, 093709 (2018)
Nanofabricated tips as a platform for double-tip and device based scanning tunneling microscopy
M Leeuwenhoek, RA Norte, KM Bastiaans, Doohee Cho, I Battisti, YaM Blanter, S Gröblacher, MP Allan
arxiv:1712.08620 (2017)
Revisiting quasiparticle scattering interference in high-temperature superconductors: the problem of narrow peaks
MA Sulangi, MP Allan, J Zaanen
PRB 96, 134507 (2017)
Robust procedure for creating and characterizing the atomic structure of scanning tunneling microscope tips
S Tewari, KM Bastiaans, MP Allan, JM van Ruitenbeek
Beilstein J. Nanotechnol. 8, 2389 (2017)
Creating better superconductors by periodic nanopatterning
MP Allan, MH Fischer, O Ostojic, A Andringa
SciPost Phys. 3, 010 (2017)
Poor electronic screening in lightly doped Mott insulators observed with scanning tunneling microscopy
I Battisti, V Fedoseev, KM Bastiaans, A de la Torre, RS Perry, F Baumberger, MP Allan
Phys. Rev. B 95, 235141, Editors’ suggestion (2017)
Universality of pseudo gap and emergent order in lightly doped Mott insulators
I. Battisti* & K.M. Bastiaans*, V. Fedoseev, A. de la Torre, N. Iliopoulos, A. Tamai, E.C. Hunter, R.S. Perry, J. Zaanen, F. Baumberger, M.P. Allan
Nature Physics 13, 21 (2017)
Identifying the fingerprint of antiferromagnetic spin fluctuations in iron pnictide superconductors
MP Allan* & Kyungmin Lee* & AW Rost*, MH Fischer, F Massee, K Kihou, C-H Lee, A Iyo, H Eisaki, T-M Chuang, AP Mackenzie, JC Davis, DJ Scalapino, E-A Kim
Nature Physics 11, 177 (2015)
Direct evidence for a magnetic f-electron mediated Cooper pairing mechanism of heavy fermion superconductivity in CeCoIn5
J Van Dyke, F Massee, MP Allan, JC Davis, C Petrovic, and DK Morr
PNAS 111, 11663 (2014)
Imaging Cooper pairing of heavy fermions in CeCoIn5
MP Allan* & F Massee*, DK Morr, J van Dyke, AW Rost, AP Mackenzie, C Petrovic, JC Davis
Nature Physics 9, 468 (2013)
Formation of heavy d-electron quasiparticles in Sr3Ru2O7
MP Allan, A Tamai, E Rozbicki, MH Fischer, J Voss, PDC King, W Meevasana, S Thirupathaiah, E Rienks, J Fink, A Tennant, RS Perry, JF Mercure, MA Wang, J Lee, CJ Fennie, E-A Kim, MJ Lawler, KM Shen, AP Mackenzie, Z-X Shen, F Baumberger
New Journal of Physics 15, 063029 (2013)
Anisotropic impurity states, quasiparticle scattering and nematic transport in underdoped Ca(Fe1−xCox)2As2
MP Allan, T-M Chuang, F Massee, Y Xie, N Ni, SL Bud’ko, GS Boebinger, Q Wang, DS Dessau, PC Canfield, MS Golden, JC Davis
Nature Physics 9, 220 (2013)
Anisotropic energy gaps of iron-based superconductivity from intraband quasiparticle interference in LiFeAs
MP Allan⋆ & AW Rost⋆, AP Mackenzie, Y Xie, JC Davis, K Kihou, CH Lee, A Iyo, H Eisaki, T-M Chuang
Science 336, 563 (2012)
How Kondo-holes create intense nanoscale heavy-fermion hybridization disorder
MH Hamidian, AR Schmidt, IA Firmo, MP Allan, P Bradley, JD Garrett, TJ Williams, GM Luke, Y Dubi, AV Balatsky, JC Davis
PNAS 108, 18233 (2011)
Nematic electronic structure in the “parent” state of the iron-based superconductor Ca(Fe1−xCox)2As2
T-M Chuang* & MP Allan*, J Lee, Y Xie, N Ni, SL Bud’ko, GS Boebinger PC Canfield, JC Davis
Science 327, 181 (2010)
Heavy d-electron quasiparticle interference and real-space electronic structure of Sr3Ru2O7
Jinho Lee* & M. P. Allan*, M. A.Wang, J. Farrell, S. A. Grigera, F. Baumberger, J. C. Davis and A. P. Mackenzie
Nature Physics 5, 800 (2009)
Fermi surface and van Hove singularities in the itinerant metamagnet Sr3Ru2O7
A Tamai, MP Allan, JF Mercure, W Meevasana, R Dunkel, DH Lu, RS Perry, AP Mackenzie, David J Singh, Z-X Shen, F Baumberger
Phys. Rev. Lett. 101, 026407 (2008)
Tunable self-assembly of one-dimensional nanostructures with orthogonal directions
MP Allan, S Berner, M Corso, T Greber, J Osterwalder
Nanoscale Research Letters 2, 94 (2007)
Photoelectron Diffraction for a Look inside Nanostructures
J Osterwalder, A Tamai, W Auwärter; MP Allan, T Greber
CHIMIA 11, 759 (2006)


Up and running WebChimera with nwjs
-
Add proxy to windows environment
set http_proxy="http://<user>:<password>@<ip>:<port>"
set https_proxy="http://<user>:<password>@<ip>:<port>"
-
Install build dependencies for WebChimera
Refer link : https://github.com/RSATom/WebChimera.js#windows
- Visual Studio Community 2013/2015 - (I tried with VS2015)
- Install VLC Player 32 bit and add it to PATH environment variable (Used to build webchimera)
- CMake - cmake-3.6.0-rc2-win64-x64.msi
- Node.js
- Install NW.js ia32 add it to PATH environment variable (Used to run player)
-
Add proxy to npm packaging system
npm config set proxy http://<user>:<password>@<ip>:<port>
npm config set https-proxy http://<user>:<password>@<ip>:<port>
Check npm configuration in C:\Users<user>.npmrc
https-proxy=http://<user>:<password>@<IP_ADDRESS>:8080/
proxy=http://<user>:<password>@<IP_ADDRESS>:8080/
-
Check cmake generators
cmake --help
-
Clone code and build it
git clone https://github.com/RSATom/wcjs-ugly-demo.git
cd wcjs-ugly-demo/
build_nwjs.cmd
-
Run
run_nwjs.cmd
Written on November 11, 2016


Lyrics of Hanuman Chalisa in English and Hindi/Devanagari script. Also find the meaning of Hanuman Chalisa in English. Hanuman Chalisa is read in devotion to and to please Lord Hanuman.

Budhi Hin Tanu Janike
Sumirau Pavan Kumar
Bal Budhi Vidya Dehu Mohe
Harahu Kalesa Vikar
Knowing my body to be devoid of intelligence, I remember Hanuman, the
son of Vāyu. Give me strength, intelligence and knowledge and remove
all ailments and impurities.
Jai Hanuman Gyan Gun Sagar
Jai Kapis Tihun Lok Ujagar || 1 ||
O Hanuman, the ocean of knowledge and virtues, may you be victorious.
O the chief amongst Vanaras famous across the three Lokas (Earth,
Heaven and Below-the-Earth), may you be victorious.
 You are known by the names of Anjaniputra (son
of Anjana) and Pavanasuta (son of Vāyu).
Mahavir Vikram Bajrangi
Kumati Nivar Sumati Ke Sangi || 3 ||
You are the great hero, you are endowed with valour, your body is as
strong as Indra's Vajra.
Kanchan Varan Viraj Subesa
Kanan Kundal Kunchit Kesa || 4 ||
Your complexion is that of molten gold, and you are resplendent in
your handsome form.
Hath Vajra Aur Dhuvaje Viraje
Kandhe Moonj Janehu Sajai|| 5 ||
You have the Vajra and the flag in your hands, and the sacred-thread
(Yajnopavita) made of the Munja grass adorns your shoulder.
Sankar Suvan Kesri Nandan
Tej Pratap Maha Jag Vandan || 6 ||
O embodiment of Shiva (or son of Vāyu carrying the power of Shiva),
the delighter of Kesari, your aura and majesty is great and is revered
by the whole world.

Prabu Charitra Sunibe Ko Rasiya
Ram Lakhan Sita Man Basiya || 8 ||
You delight in listening to the acts of Rama (Ramayana). Rama,
Lakshmana and Sita reside in your mind. Alternately, you reside in the
minds of Rama, Lakshmana and Sita.
Sukshma Roop Dhari Siyahi Dikhava
Vikat Roop Dhari Lanka Jarava || 9 ||
You assumed an extremely minute form and appeared to Sita in the Ashok
Vatika. You assumed a very large and scary form and burnt the city of
Lanka.
Bhima Roop Dhari Asur Sanghare
Ramachandra Ke Kaj Sanvare || 10 ||
You assumed a frightening form and destroyed the demons [in the army
of Ravana]. You carried out all the tasks of Rama.
Laye Sanjivan Lakhan Jiyaye
Shri Raghuvir Harashi Ur Laye || 11 ||
You brought the Sanjivini, the life saving herb from Dronagiri in
Himalayas, and revitalized Lakshman. Out of elation, Rama embraced
you.
Raghupati Kinhi Bahut Badai
Tum Mam Priye Bharat Hi Sam Bhai || 12 ||
Rama, the chief among Raghu's descendants, praised you profusely
saying "You are dear to me like my brother Bharata.
Sahas Badan Tumharo Yash Gaave
Us Kahi Shripati Kanth Lagaave || 13 ||
Rama also added that a thousand people will praise Hanuman's glory and
embraced him again.
Sankadik Brahmadi Muneesa
Narad Sarad Sahit Aheesa || 14 ||
When prophets like Sanka, even the Sage like Lord Brahma, the great
hermit Narad himself, Goddess Saraswati and Ahisha (one of
immeasurable dimensions).
Yam Kuber Digpal Jahan Te
Kavi Kovid Kahi Sake Kahan te || 15 ||
Even Yamraj (God of Death) Kuber (God of Wealth) and the Digpals
(deputies guarding the four corners of the Universe) have been vying
with one another in offering homage to your glories. How then, can a
mere poet give adequate expression of your super excellence.
Tum Upkar Sugreevahin Keenha
Ram Milaye Rajpad Deenha|| 16 ||
You did Sugriva a great favour by making him meet Rama and bestowing
on him the kingdom.
Tumharo Mantra Vibheeshan Mana
Lankeshwar Bhaye Sub Jag Jana || 17 ||
Your Mantra was accepted by Vibishana, as a result of which he became
the king of Lanka. The whole world knows this.
Yug Sahastra Jojan Par Bhanu
Leelyo Tahi Madhur Phal Janu || 18 ||
On your own you dashed upon the sun, Surya, which is thousands of
miles away, thinking it to be a sweet fruit.
Prabhu Mudrika Meli Mukh Mahee
Jaladhi Langhi Gaye Achraj Nahee || 19 ||
O Lord, placing the ring given by Rama in your mouth, you leaped
across the ocean – there is no wonder here.
Durgaam Kaj Jagat ke Jete
Sugam Anugraha Tumhre Tete || 20 ||
All the unattainable tasks in the world become easily attainable with
your grace.
Ram Dware Tum Rakhvare
Hoat Na Agya Binu Paisare || 21 ||
You are the sentry at the door of Shri Ram's Divine Abode. No one can
enter it without your permission.
Sub Sukh Lahai Tumhari Sarna
Tum Rakshak Kahu Ko Dar Na || 22 ||
All comforts of the world lie at your feet. The devotees enjoy all
divine pleasures and feel fearless under your benign Protection.
Aapan Tej Samharo Aapai
Teenhon Lok Hank Te Kanpai || 23 ||
You alone are befitted to carry your own splendid valour. All the
three worlds (entire universe) tremor at your thunderous call.
Bhoot Pisach Nikat Nahin Aavai
Mahavir Jab Naam Sunavai || 24 ||
All the ghosts, demons and evil forces keep away, with the sheer
mention of your great name, O'Mahaveer!!
Nase Rog Harai Sab Peera
Japat Nirantar Hanumant Beera.|| 25 ||
All diseases, pain and suffering disappear on reciting regularly Shri
Hanuman's holy name.
Sankat Se Hanuman Chudavai
Man Karam Vachan Dyan Jo Lavai || 26 ||
Those who remember Shri Hanuman in thought, words and deeds with
sincerity and faith, are rescued from all crises in life.
Sub Par Ram Tapasvee Raja
Tin Ke Kaj Sakal Tum Saja || 27 ||
Rama is the supreme God and a king with Tapas, and yet you executed
all his tasks.
Aur Manorath Jo Koi Lavai
Sohi Amit Jeevan Phal Pavai || 28 ||
And whoever comes to you with any wish, that wish is fulfilled beyond
limits in this very birth.
Charon Yug Partap Tumhara
Hai Persidh Jagat Ujiyara || 29 ||
Your glory is famous in all the four Yugas, and illuminates the whole
world.
Sadhu Sant Ke Tum Rakhware
Asur Nikandan Ram Dulhare || 30 ||
You are the protector of Sadhus (good people or ascetics) and Sants
(saints).
Ashta Sidhi Nav Nidhi Ke Dhata
Us Var Deen Janki Mata || 31 ||
You can grant to any one, any yogic power of Eight Siddhis (power to
become light and heavy at will) and Nine Nidhis
(Riches,comfort,power,prestige,fame,sweet relationship etc.) This boon
has been conferred upon you by Mother Janki.
Ram Rasayan Tumhare Pasa
Sada Raho Raghupati Ke Dasa || 32 ||
You have the treasure of Rama's Bhakti (rāma rasāyana) with you. You
are, respectfully, the servant of Raghupati (Shri Raam).
Tumhare Bhajan Ram Ko Pavai
Janam Janam Ke Dukh Bisravai || 33 ||
Singing of you (Hanuman), a Bhakta obtains Rama and forgets the
adversities and afflictions of many births.
Anth Kaal Raghuvir Pur Jayee
Jahan Janam Hari Bakht Kahayee || 34 ||
As a result of devotion to you, a Bhakta goes to Sāketa Loka
(raghubara pura) at the time of their end (physical death). Once the
Bhakta reaches Sāketa, wherever they take birth, they are known as the
Bhaktas of Hari.
Aur Devta Chit Na Dharehi
Hanumanth Se Hi Sarve Sukh Karehi || 35 ||
Even one who does not contemplate on any other Devatas in their mind
and only serves Hanuman, achieves all favourable bliss in this world
and the next.
Sankat Kate Mite Sab Peera
Jo Sumirai Hanumat Balbeera || 36 ||
Whoever remembers the brave and mighty Hanuman gets free of all
adversities and relief from all pains.
Jai Jai Jai Hanuman Gosahin
Kripa Karahu Gurudev Ki Nyahin || 37 ||
O Hanuman, the master of senses, may you be victorious, may you be
victorious, may you be victorious. May you shower your grace lovingly,
as a Guru does, and reveal to me the knowledge of devotion to Rama.
Jo Sat Bar Path Kare Kohi
Chutehi Bandhi Maha Sukh Hohi || 38 ||
One who recites Hanuman Chalisa a hundred times or for hundred days is
released from bondage and obtains great bliss.
Jo Yah Padhe Hanuman Chalisa
Hoye Siddhi Sakhi Gaureesa || 39 ||
One who reads this Hanuman Chalisa obtains accomplishment or
liberation. Shiva himself bears witness to this statement.
Tulsidas Sada Hari Chera
Keejai Das Hrdaye Mein Dera || 40 ||
Tulsidas is always a devotee of Hari. O Lord, make my heart your
abode.
Pavantnai Sankat Haran
Mangal Murti Roop
Ram Lakhan Sita Sahit
Hrdaye Basahu Sur Bhoop
O Son of Vāyu, remover of adversities, one with an auspicious form,
and the chief among all Devas, may you reside in our hearts along with
Rama, Lakshman and Sita.
What are the benefits of reading Hanuman Chalisa?
Hanuman Chalisa is a devotional hymn addressed to Lord Hanuman. The
followers of Lord Hanuman believe that when a person reads Hanuman
Chalisa, Lord Hanuman comes to solve all his or her problems. It is also
believed that the negative impact Lord Shani’s Sade Sati (seven and a
half years) can also be diminished by reading Hanuman Chalisa everyday.
Followers believe that Hanuman Chalisa is an effective tool to remedy
Shani Sade Sati.
The followers and believers of Lord Hanuman also believe that if someone
who gets nightmares, wants to get rid of evil spirits then reading
Hanuman Chalisa is beneficial for him or her. Lord Hanuman helps in
getting rid of evils and spirits which can harm one. One of the verses -
“Bhoot Pichash Nikat Nahin Aavai, Mahavir Jab naam Sunavai” - means that
no evil spirit can affect a devotee who takes the name of Lord Hanuman.
Many believers also believe that reading Hanuman Chalisa every morning
helps in de-stressing. It helps mind feel more relaxed, and relaxed mind
is at peace and helps one stay happy all day. Many believers also
believe that Hanuman Chalisa is a mode to seek forgiveness. It helps in
reducing the getting rid of all your bad deeds.
When is the best time to read Hanuman Chalisa?
Hanuman Chalisa can be read either in the morning or in the evening. If
reading in the morning then take a bath before reading Hanuman Chalisa.
If you want to read it in the evening then make sure to wash hands and
feet properly before reading Hanuman Chalisa.
Who can read Hanuman Chalisa?
Anyone, regardless of religion, beliefs, race and culture, can read
Hanuman Chalisa. It must be noted that believers and followers of Lord
Hanuman regularly read Hanuman Chalisa.
Who wrote Hanuman Chalisa?
Hanuman Chalisa was written by 16th centry Indian poet named Tulsidas.
In which language was Hanuman Chalisa written?
Hanuman Chalisa was originally written in Awadhi, an Eastern Indian
Hindi language, primarily spoken in northern part of India. You will
find the translation of Hanuman Chalisa lyrics in English and Hindi
above.
What else can you tell me about Hanuman Chalisa?
Hanuman Chalisa has 40 verses, excluding the couplets at the beginning
and at the end. The Hanuman Chalisa is the most popular hymn in praise
of Lord Hanuman, and is recited by tens of millions of followers every
day. Hanuman Chalisa as the name suggests is addressed to Lord Hanuman,
who is an ardent devotee of Lord Rama. A leader among the monekys, Lord
Hanuman was a warrior in the Lord Rama's battle against the King Ravana.
Lord Hanuman is believed to be one of the seven immortals as per
Sanatana Dharma.
There are two couplets in the beginning, one couplet in the end and a
total of 40 verses in between. The forty verses elaborate Lord Hanuman's
knowledge and devotion to Lord Rama. The poet Tulsidas starts the poem
with two couplets praising his teacher.
The first introductory couplet begins with the prayers to Lord Shiva,
who is believed to be the teacher of Lord Hanuman. The auspicious form,
knowledge, virtues, powers and bravery of Lord Hanuman are described in
the first ten verses. Verses eleven to twenty describe the acts of
Hanuman in his service to Ram, with the eleventh to fifteenth verses
describing the role of Hanuman in bringing back Lakshman to
consciousness. From the twenty-first verse, Tulsidas describes the need
of blessings of Lord Hanuman. At the end, Tulsidas greets Lord Hanuman
with utmost devotion and requests him to reside in his heart and in the
heart of all believers and followers. The concluding couplet again
requests Lord Hanuman to reside in the heart, along with Lord Ram, his
brother Lakshman and Goddess Sita.


---
layout: page
Title: Writing competition
year: 2016
youtube: GYlOZ9TPcSs
---
Shout about Peace
{{ page.Title}} {{ page.year }}
- In {{ page.year }}, Bristol CND invited young people aged 12 to 18 to "Shout About Peace" in an original piece of writing - it could be poetry, prose, a comic strip, a short story, a script, a diary entry, a song, anything they chose as a way to tell the world how they feel about nuclear weapons and what should be done with them.
- Congratulations to Hassan Sherif who won first prize for 'Letters', Megan Gillespie who won second prize for 'The Day the Man Jumped and the Day the Boy Flew' and Pearl Andrews-Horrigan who won third prize for 'Collateral Damage: A Slam Poem':


Question 1 of ¿?. ¿? correct so far.
Blue is common as dirt in every new design.
Eleven is good. One hundred and eleven is also good.
Seriously, it’s always Summer.


| A textured jacquard knit lends rugged detail to this classic cut sweater
that'll never go out of style as the season shifts, with a sailboat motif
for seaside appeal. |
When the weekend arrives, it's time to relax your style, and
this casually cool tee feels just right. |
Crafted with super-soft stretch twill, these classic fit,
flat front pants have a smooth, slimming appeal, but move
with you for durable wear and lasting comfort. |
With a soft cotton blend, these pajamas will be your go-to
set for all-day comfort during off-duty hours. |


| Interface | Description |
|---|---|
| BootstrapPeer |
Implementations of this interface perform initialization operations on a
HyperGraphPeer . |
| MessageHandler | |
| NetworkPeerPresenceListener |
A listener that tracks low-level network peer activity - to be invoked
when a peer joins/leaves the network before its HyperGraphDB identity
has be established/validates/authenticated.
|
| PeerInterface |
This interface define the low-level communication layer for the HyperGraphDB P2P
framework.
|
| PeerPresenceListener |
A listener that tracks when peers, whose HyperGraphDB identity has
been established, join/leave the network.
|
| PeerRelatedActivityFactory |
| Class | Description |
|---|---|
| HGDBOntology | |
| HGPeerIdentity | |
| HyperGraphPeer |
Main class for the local peer.
|
| Messages | |
| PeerConfig | |
| PeerHyperNode |
This
HyperNode implementation lets you access a remote HyperGraph instance in
client-server way. |
| PeerRelatedActivity |
A callable object that executes a task against a given peer with a
boolean result indicating success or failure. |
| Performative |
The FIPA standard communicative acts.
|
| PerformativeConstant | |
| PrivatePeerIdentity |
This is a simple data structure that represents a HyperGraphDB peer identity.
|
| RemotePeer | |
| StartPeer | |
| StorageService | |
| Structs |
Utility methods to be used in constructing nested structures for complex
message representations.
|
| SubgraphManager |
| Enum | Description |
|---|---|
| StorageService.Operation |
| Exception | Description |
|---|---|
| ExceptionAtPeer |
Represents an exception that occurred at a remote peer and caused it to fail
to participate in an activity.
|


This module contains various helpful methods to make it easier to do various tasks. {Haml::Helpers} is automatically included in the context that a Haml template is parsed in, so all these methods are at your disposal from within the template.
Characters that need to be escaped to HTML entities from user input @private
@return [Boolean] Whether or not ActionView is loaded
# File lib/haml/helpers.rb, line 53 53: def self.action_view? 54: @@action_view_defined 55: end
Returns whether or not `block` is defined directly in a Haml template.
@param block [Proc] A Ruby block @return [Boolean] Whether or not `block` is defined directly in a Haml template
# File lib/haml/helpers.rb, line 528 528: def block_is_haml?(block) 529: eval('_hamlout', block.binding) 530: true 531: rescue 532: false 533: end
Captures the result of a block of Haml code, gets rid of the excess indentation, and returns it as a string. For example, after the following,
.foo * foo = capture_haml(13) do |a| %p= a
the local variable `foo` would be assigned to `”
13
n“`.@param args [Array] Arguments to pass into the block @yield [args] A block of Haml code that will be converted to a string @yieldparam args [Array] `args`
# File lib/haml/helpers.rb, line 337 337: def capture_haml(*args, &block) 338: buffer = eval('_hamlout', block.binding) rescue haml_buffer 339: with_haml_buffer(buffer) do 340: position = haml_buffer.buffer.length 341: 342: haml_buffer.capture_position = position 343: block.call(*args) 344: 345: captured = haml_buffer.buffer.slice!(position..1).split(/^/) 346: 347: min_tabs = nil 348: captured.each do |line| 349: tabs = line.index(/[^ ]/) || line.length 350: min_tabs ||= tabs 351: min_tabs = min_tabs > tabs ? tabs : min_tabs 352: end 353: 354: captured.map do |line| 355: line[min_tabs..1] 356: end.join 357: end 358: ensure 359: haml_buffer.capture_position = nil 360: end
Escapes HTML entities in `text`, but without escaping an ampersand that is already part of an escaped entity.
@param text [String] The string to sanitize @return [String] The sanitized string
# File lib/haml/helpers.rb, line 507 507: def escape_once(text) 508: Haml::Util.silence_warnings do 509: text.to_s.gsub(/[\"><]|&(?!(?:[a-zA-Z]+|(#\d+));)/) {|s| HTML_ESCAPE[s]} 510: end 511: end
Uses {#preserve} to convert any newlines inside whitespace-sensitive tags into the HTML entities for endlines.
@param tags [Array
@overload find_and_preserve(input, tags = haml_buffer.options[:preserve])
Escapes newlines within a string. @param input [String] The string within which to escape newlines
@overload find_and_preserve(tags = haml_buffer.options[:preserve])
Escapes newlines within a block of Haml code. @yield The block within which to escape newlines
# File lib/haml/helpers.rb, line 108 108: def find_and_preserve(input = nil, tags = haml_buffer.options[:preserve], &block) 109: return find_and_preserve(capture_haml(&block), input || tags) if block 110: input.to_s.gsub(/<(#{tags.map(&Regexp.method(:escape)).join('|')})([^>]*)>(.*?)(<\/\11>>)/m) do 111: "<#{$1}#{$2}>#{preserve($3)}</#{$1}>" 112: end 113: end
Outputs text directly to the Haml buffer, with the proper indentation.
@param text [#] The text to output
# File lib/haml/helpers.rb, line 376 376: def haml_concat(text = "") 377: haml_buffer.buffer << haml_indent << text.to_s << "\n" 378: ErrorReturn.new("haml_concat") 379: end
@return [String] The indentation string for the current line
# File lib/haml/helpers.rb, line 382 382: def haml_indent 383: ' ' * haml_buffer.tabulation 384: end
Creates an HTML tag with the given name and optionally text and attributes. Can take a block that will run between the opening and closing tags. If the block is a Haml block or outputs text using {#haml_concat}, the text will be properly indented.
`flags` is a list of symbol flags like those that can be put at the end of a Haml tag (`:/`, `:<`, and `:>`). Currently, only `:/` and `:<` are supported.
`haml_tag` outputs directly to the buffer; its return value should not be used. If you need to get the results as a string, use {#capture_haml}.
For example,
haml_tag :table do haml_tag :tr do haml_tag :td, {:class => 'cell'} do haml_tag :strong, "strong!" haml_concat "data" end haml_tag :td do haml_concat "more_data" end end end
outputs

   strong!  data 	  more_data

@param name [#] The name of the tag @param flags [Array
@overload haml_tag(name, *flags, attributes = {})
@yield The block of Haml code within the tag
@overload haml_tag(name, text, *flags, attributes = {})
@param text [#to_s] The text within the tag
# File lib/haml/helpers.rb, line 438 438: def haml_tag(name, *rest, &block) 439: ret = ErrorReturn.new("haml_tag") 440: 441: name = name.to_s 442: text = rest.shift.to_s unless [Symbol, Hash, NilClass].any? {|t| rest.first.is_a? t} 443: flags = [] 444: flags << rest.shift while rest.first.is_a? Symbol 445: attributes = Haml::Precompiler.build_attributes(haml_buffer.html?, 446: haml_buffer.options[:attr_wrapper], 447: rest.shift || {}) 448: 449: if text.nil? && block.nil? && (haml_buffer.options[:autoclose].include?(name) || flags.include?(:/)) 450: haml_concat "<#{name}#{attributes} />" 451: return ret 452: end 453: 454: if flags.include?(:/) 455: raise Error.new("Self-closing tags can't have content.") if text 456: raise Error.new("Illegal nesting: nesting within a self-closing tag is illegal.") if block 457: end 458: 459: tag = "<#{name}#{attributes}>" 460: if block.nil? 461: tag << text.to_s << "</#{name}>" 462: haml_concat tag 463: return ret 464: end 465: 466: if text 467: raise Error.new("Illegal nesting: content can't be both given to haml_tag :#{name} and nested within it.") 468: end 469: 470: if flags.include?(:<) 471: tag << capture_haml(&block).strip << "</#{name}>" 472: haml_concat tag 473: return ret 474: end 475: 476: haml_concat tag 477: tab_up 478: block.call 479: tab_down 480: haml_concat "</#{name}>" 481: 482: ret 483: end
Returns a hash containing default assignments for the `xmlns`, `lang`, and `xml:lang` attributes of the `html` HTML element. For example,
%html{html_attrs}
becomes

@param lang [String] The value of `xml:lang` and `lang` @return [{# => String}] The attribute hash
# File lib/haml/helpers.rb, line 196 196: def html_attrs(lang = 'en-US') 197: {:xmlns => "http://www.w3.org/1999/xhtml", 'xml:lang' => lang, :lang => lang} 198: end
Returns a copy of `text` with ampersands, angle brackets and quotes escaped into HTML entities.
Note that if ActionView is loaded and XSS protection is enabled (as is the default for Rails 3.0+, and optional for version 2.3.5+), this won’t escape text declared as “safe”.
@param text [String] The string to sanitize @return [String] The sanitized string
# File lib/haml/helpers.rb, line 498 498: def html_escape(text) 499: Haml::Util.silence_warnings {text.to_s.gsub(/[\"><&]/) {|s| HTML_ESCAPE[s]}} 500: end
Note: this does *not* need to be called when using Haml helpers normally in Rails.
Initializes the current object as though it were in the same context as a normal ActionView instance using Haml. This is useful if you want to use the helpers in a context other than the normal setup with ActionView. For example:
context = Object.new class << context include Haml::Helpers end context.init_haml_helpers context.haml_tag :p, "Stuff"
# File lib/haml/helpers.rb, line 73 73: def init_haml_helpers 74: @haml_buffer = Haml::Buffer.new(@haml_buffer, Haml::Engine.new('').send(:options_for_buffer)) 75: nil 76: end
Returns whether or not the current template is a Haml template.
This function, unlike other {Haml::Helpers} functions, also works in other `ActionView` templates, where it will always return false.
@return [Boolean] Whether or not the current template is a Haml template
# File lib/haml/helpers.rb, line 520 520: def is_haml? 521<EMAIL_ADDRESS>&& @haml_buffer.active? 522: end
Takes an `Enumerable` object and a block and iterates over the enum, yielding each element to a Haml block and putting the result into `
= list_of([['hello'], ['yall']]) do |i| = i[0]
Produces:

hello

yall

And
= list_of({:title => 'All the stuff', :description => 'A book about all the stuff.'}) do |key, val| %h3= key.humanize %p= val
Produces:

Title

All the stuff

Description

A book about all the stuff.

@param enum [Enumerable] The list of objects to iterate over @yield [item] A block which contains Haml code that goes within list items @yieldparam item An element of `enum`
# File lib/haml/helpers.rb, line 168 168: def list_of(enum, &block) 169: to_return = enum.collect do |i| 170: result = capture_haml(i, &block) 171: 172: if result.count("\n") > 1 173: result.gsub!("\n", "\n ") 174: result = "\n #{result.strip}\n" 175: else 176: result.strip! 177: end 178: 179: "
#{result}
" 180: end 181: to_return.join("\n") 182: end
Runs a block of code in a non-Haml context (i.e. {#is_haml?} will return false).
This is mainly useful for rendering sub-templates such as partials in a non-Haml language, particularly where helpers may behave differently when run from Haml.
Note that this is automatically applied to Rails partials.
@yield A block which won’t register as Haml
# File lib/haml/helpers.rb, line 87 87: def non_haml 88: was_active = @haml_buffer.active? 89: @haml_buffer.active = false 90: yield 91: ensure 92: @haml_buffer.active = was_active 93: end
Prepends a string to the beginning of a Haml block, with no whitespace between. For example:
= precede '*' do %span.small Not really
Produces:
*Not really
@param str [String] The string to add before the Haml @yield A block of Haml to prepend to
# File lib/haml/helpers.rb, line 300 300: def precede(str, &block) 301: "#{str}#{capture_haml(&block).chomp}\n" 302: end
Takes any string, finds all the newlines, and converts them to HTML entities so they’ll render correctly in whitespace-sensitive tags without screwing up the indentation.
@overload perserve(input)
Escapes newlines within a string. @param input [String] The string within which to escape all newlines
@overload perserve
Escapes newlines within a block of Haml code. @yield The block within which to escape newlines
# File lib/haml/helpers.rb, line 127 127: def preserve(input = nil, &block) 128: return preserve(capture_haml(&block)) if block 129: input.to_s.chomp("\n").gsub(/\n/, '
').gsub(/\r/, '') 130: end
@deprecated This will be removed in version 3.0. @see #
# File lib/haml/helpers.rb, line 364 364: def puts(*args) 365: warn DEPRECATION WARNING:The Haml #puts helper is deprecated and will be removed in version 3.0.Use the #haml_concat helper instead. 366: haml_concat(*args) 367: end
Appends a string to the end of a Haml block, with no whitespace between. For example:
click = succeed '.' do %a{:href=>"thing"} here
Produces:
click here.
@param str [String] The string to add after the Haml @yield A block of Haml to append to
# File lib/haml/helpers.rb, line 319 319: def succeed(str, &block) 320: "#{capture_haml(&block).chomp}#{str}\n" 321: end
Surrounds a block of Haml code with strings, with no whitespace in between. For example:
= surround '(', ')' do %a{:href => "food"} chicken
Produces:
(chicken)
and
= surround '*' do %strong angry
Produces:
*angry*
@param front [String] The string to add before the Haml @param back [String] The string to add after the Haml @yield A block of Haml to surround
# File lib/haml/helpers.rb, line 281 281: def surround(front, back = front, &block) 282: output = capture_haml(&block) 283: 284: "#{front}#{output.chomp}#{back}\n" 285: end
Decrements the number of tabs the buffer automatically adds to the lines of the template.
@param i [Fixnum] The number of tabs by which to decrease the indentation @see #
# File lib/haml/helpers.rb, line 227 227: def tab_down(i = 1) 228: haml_buffer.tabulation -= i 229: end
Increments the number of tabs the buffer automatically adds to the lines of the template. For example:
%h1 foo * tab_up %p bar * tab_down %strong baz
Produces:

foo

bar
 baz
@param i [Fixnum] The number of tabs by which to increase the indentation @see #
# File lib/haml/helpers.rb, line 218 218: def tab_up(i = 1) 219: haml_buffer.tabulation += i 220: end
Sets the number of tabs the buffer automatically adds to the lines of the template, but only for the duration of the block. For example:
%h1 foo * with_tabs(2) do %p bar %strong baz
Produces:

foo

bar
 baz
@param i [Fixnum] The number of tabs to use @yield A block in which the indentation will be `i` spaces
# File lib/haml/helpers.rb, line 250 250: def with_tabs(i) 251: old_tabs = haml_buffer.tabulation 252: haml_buffer.tabulation = i 253: yield 254: ensure 255: haml_buffer.tabulation = old_tabs 256: end
Gives a proc the same local `_hamlout` and `_erbout` variables that the current template has.
@param proc [#] The proc to bind @return [Proc] A new proc with the new variables bound
# File lib/haml/helpers.rb, line 564 564: def haml_bind_proc(&proc) 565: _hamlout = haml_buffer 566: _erbout = _hamlout.buffer 567: proc { |*args| proc.call(*args) } 568: end
The current {Haml::Buffer} object.
@return [Haml::Buffer]
# File lib/haml/helpers.rb, line 555 555: def haml_buffer 556: @haml_buffer 557: end
Runs a block of code with the given buffer as the currently active buffer.
@param buffer [Haml::Buffer] The Haml buffer to use temporarily @yield A block in which the given buffer should be used
# File lib/haml/helpers.rb, line 541 541: def with_haml_buffer(buffer) 542: @haml_buffer, old_buffer = buffer, @haml_buffer 543: old_buffer.active, old_was_active = false, old_buffer.active? if old_buffer 544: @haml_buffer.active, was_active = true, @haml_buffer.active? 545: yield 546: ensure 547: @haml_buffer.active = was_active 548: old_buffer.active = old_was_active if old_buffer 549: @haml_buffer = old_buffer 550: end
Disabled; run with --debug to generate this.
Generated with the Darkfish Rdoc Generator 1.1.6.


Below I will give you 5 questions about yourself.
These questions will determine which Track at Epicodus might be right for you!
Ruby is a programming language focused on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. The Ruby programming language is most commonly used with the Ruby on Rails framework. Ruby and Rails are typically used by younger companies and startups, especially for building interactive web applications. Companies using Ruby and Rails who have hired Epicodus graduates include New Relic, LivingSocial, and SpendWell.
CSS is the language for describing the presentation of Web pages, including colors, layout, fonts, and other stylistic choices. It allows one to adapt the presentation to different types of devices, such as large screens, small screens, and printers. HTML — used for building the structure of the page — and CSS — used for the visual layout — are the two basic languages involved in the building of web pages and web applications.
Java is arguably the most popular programming language today. It's used for everything from web applications to backend services to mobile applications to embedded systems. Students who learn Java programming will be able to create dynamic web applications, and be able continue into our Android track. Companies using Java who have hired Epicodus graduates include Nike and Thetus.


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Binaries - Shared Libraries - Directories
Windows binaries that start applications have a suffix of exe and in Unix they have no suffix. Windows shared library binaries are called DLLs (dynamic load libraries) and have a suffix of dll. Unix shared libraries have a prefix of lib and a suffix of so in Linux and dylib in Mac. The Linux form is used in these examples. Each binary has an equivalent on all platforms except for j.exe, which is Windows only.
The J Engine is a shared library and the different front ends use the same J Engine shared library.
In addition to the system use of shared libraries, the J user can use other shared libraries, such as the host api and the J provided Perl Compatible Regular Expressions, with the cd facility
Windows binaries
j.dll -- J Engine
jconsole.exe -- front end with console support
jpcre.dll -- Perl Compatible regular expression (in tools folder)
Windows use of shared libraries
jconsole.exe -> j.dll
... -> j.dll -> jpcre.dll
... -> j.dll -> Windows API and other DLLs
Unix binaries
libj.so -- J Engine
jconsole -- front end with console support
jpcre.so -- Perl Compatible regular expression (in tools folder)
Unix use of shared libraries
jconsole -> libj.so
... -> libj.so -> libjpcre.so
... -> libj.so -> Unix API and other shared libraries
Finding shared libaries
A problem with shared libraries is where to find them when they are needed. For example, in Windows when you run jconsole.exe it needs to load j.dll into memory. The question is where should it load from. There could be serveral different versions of j.dll on your hard drive and it is critical that get the right one. The problem is the same on Windows and Unix, but the rules for finding the shared library are a bit different.
JFE's assume the correct JE is in the same J folder that contains the JFE. The JFE determines the path to this J folder and loads exactly that JE with a fullpath.
Windows Shared Library Search Rules
Windows searches and uses the first one it finds:
0. the exact file if a fullpath is specified
1. the directory that contained the exe binary that started the process
2. current directory
3. system directory (usually c:\windows\system32)
4. windows directory (usually c:\windows)
5. path environment directories
Unix Shared Library Search Rules
Here is a simplified summary of where Unix searches for the shared library (it uses the first one it finds):
0. the exact file if a fullpath is specified
1. /usr/lib
2. /lib
There are three complications
1. links (files that link to other files) are often used with shared libraries
2. different versions of a shared library can be indicated by suffixes: so.5.1 and so.5.2
3. search rules are different when linking and when running
A typical shared library might have the following three files in /usr/lib
libfubar.so link to libfubar.so.5
libfubar.so.5 link to libfubar.so.5.2
libfubar.so.5.2 binary file for fubar version 5.2
libfubar.so.5.1 binary file for fubar version 5.1
When a binary is built for distribution the link is done with just the name fubar. The linker finds libfubar.so then libfubar.so.5 and then libfubar.so.5.2 and resolves everything based on the code there. But it puts the name libfubar.so.5 (not the starting name libfubar.so and not the name of the file actually used) in the resulting binary. When the binary is run it starts at libfubar.so.5. Generally this is good because it means that libfubar.so.5 could link to a new binary libfubar.so.5.3 with nice fixes. But it could be bad because you're not getting exactly what you were built to expect. The theory is that the 5 is a major change and you wouldn't want to quitely be given version 6 instead, but that that the 2 or 3 are minor versions (bug fixes) and you would want the latest.
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Sorry about that. This may or may not be an intermittent failure; please check the Weasyl status page for details.


Here, I wanted to demonstrate why the previous collision code didn't work properly. Here's a simplified version code I use to animate the movement:
class Ball implements Entity { update(_: number, delta: number) { this.x += this.dx * delta } } function update(timestamp: number, delta: number) { entities.forEach(e => e.update(timestamp, delta)) updateCollisions() } let start: number let previous: number function step(timestamp: number) { if (!start) { start = timestamp previous = timestamp } const delta = timestamp - previous update(timestamp, delta) draw() previous = timestamp window.requestAnimationFrame(step) } window.requestAnimationFrame(step)
The project feels like it's rapidly getting out of hand with all the features I want. How will I organize all of this stuff?


My name is Madam Flix, please enter your first name!
Type in a "four-letter-word" below! Any and I mean ANY four letter word. You're secret's safe with Madam Flicks!
Who are you watching this movie with?
Project Concept: A site that helps everyday users choose a streaming movie with little input!
Project Domain Model: We know that in todays world it can be hard to choose what to spend your time watching. With all of the different platforms and channels vying for your attention it can get confusing. Here at Pick-A-Flick we've introduced a novel app with a few helpful functions to make sure you can spend less time deciding and more time watching.


Marshall et al (2010) define an arbitrage opportunity as when the bid price of ETF A (B) diverts high enough away from the ask price of ETF B (A) such that their quotient reaches a threshold. In their paper, an arbitrage opportunity is only acted upon when the threshold is satisfied for 15 seconds. When these criteria are met, the algorithm enters the arbitrage trade by going long ETF B (A) and short ETF A (B). When the spread reverts back to where the bid of ETF B (A) >= the ask of ETF A (B) for 15 seconds, the positions are liquidated. An overview of the trade process is illustrated in the image below.


Create a Python project Quadratic Equation, add the Solver.py file and enter the following code
Now that we've prepared our example, let's define a Docker-based remote interpreter. Ensure that you have downloaded and installed Python on your computer.
If you are in the Settings/Preferences dialog Ctrl+Alt+S select Project
As a result, in the Settings dialog, you should see something like this:
Click OK to apply changes and close the dialog.
In the left gutter, next to the main clause, click the button, and choose Run 'Solver.py' command. You see that your script runs in the Docker container.
The prefix in the Run tool window shows the container ID.
Next, let's debug our application. For that, let's put a breakpoint on the line that calculates d, then click and choose Debug 'Solver'.
Console tab of the Debug tool window, the debugger runs also in the Docker container
But now this container has a different id, and hence - different name. You can see it in the Terminal: type the docker ps command and see the container id and name
If you have configured Docker as a remote interpreter, you will see the Services tool window button at the bottom side of the main PyCharm window. Click this button and see the docker containers
First, we are connected to a Docker daemon
Second, if we open the Run tool window, we will see that the Docker prefix corresponds to the container ID in the Properties tab of the Docker tool window
open the Debug tool window, we'll see that the Docker prefix (another one) corresponds to another container ID in the Properties tab of the Docker tool window
Finally, we see the strange names of the containers
We created a project and added a Python script. We configured the remote interpreter with PyCharm. We ran and debugged our script in the Docker containers. Finally, we launched the Docker tool window and saw all the details visible in the Terminal.


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Embedded Artistry Framework
Embedded Systems C++ Framework
|
Functions that can be used to swap the endianness of a value. More...
Functions | |
| template<class T > | |
| constexpr std::enable_if< std::is_unsigned< T >::value, T >::type | embutil::byteswap (T i, T j=0u, std::size_t n=0u) noexcept |
| Recursive constexpr byteswap implementation without C++17 fold expressions. More... | |
| template<typename T > | |
| void | embutil::SwapEndian (T &val, typename std::enable_if< std::is_arithmetic< T >::value, std::nullptr_t >::type unused=nullptr) noexcept |
| Non-constexpr Robust Endian Swap. More... | |
| template<typename T > | |
| void | embutil::SwapEndian_UB (T &val) noexcept |
| Endian swap using undefined behavior. More... | |
Functions that can be used to swap the endianness of a value.
|
noexcept |
Recursive constexpr byteswap implementation without C++17 fold expressions.
Specialized implementations can be defined for specific types if desired. Example of template specialization for a specific type:
| T | The type of the value being byteswap'd. This is (typically) deduced by the compiler. |
| i | The value to byteswap. |
| j | Used in the recursive calculation; users should not set this. |
| n | Used in the recursive calculation; users shoudl not set this. |
References CHAR_BIT, n, and T.
Referenced by embdrv::vl53l1x::readTrim(), and embdrv::vl53l1x::writeReg().
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noexcept |
Non-constexpr Robust Endian Swap.
Described here: https://mklimenko.github.io/english/2018/08/22/robust-endian-swap/ This approach avoids bitmasks/shifts and intrinsics, which can be non-portable and error prone
The idea is simple: we define a template function, in which there is a union, containing both the passed value and the std::array of the corresponding size. We create two objects of such union and perform the reverse copying from one to another. All the extra assignments will be optimized out by the compiler, which will make this code fast and efficient.
We use the SFINAE-d version to make sure you won’t pass anything wrong
The good thing about this is that we have a template for all the corner cases and possible types. But the greatest is that the compiler was able to optimize both of these functions into one assembly command bswap. Some instructions sets haven’t got that command and if this will become the bottleneck of your program, you can make a template specialization for the case you need.
| T | Type of integer to perform the swap on. This value is (typically) deduced by the compiler. |
| val | The value to perform an endian swap on. |
| unused | An unused parameter, present for use with std::enable_if. |
References T.
|
noexcept |
Endian swap using undefined behavior.
Original version of SwapEndian(). The undefined behavior is due to the use of an inactive member of the union. This function is efficient, but the undefined behavior makes it risky.
| T | Type of integer to perform the swap on. This value is (typically) deduced by the compiler. |
| val | The value to perform an endian swpa on. |
References T.


Welcome to
(1) right click in background to get global
context menu
(2) this is a browser to view and edit file in a repository
(3) this is a workspace
// here you can evaluate code...
// by selecting it and pressing CTRL+D (do it) or CTRL+P for doing and priting it:
3 + 4 // 7
// or
for(let ea of Array.from(document.body.children)) {
lively.showElement(ea)
// ea.remove() //
}
// 5. HOMEWORK change the script to have a clean start


This form is designed to allow developers to create test accounts. When an account is created,
a view with VIEW_ID "owner" will be created, and access to this view will be granted to the user
(you) who created it. If you wish, you may then populate the account with transactions using the
v1.2.1 payments API.
If you wish to do this, you will probably want to create some other accounts to send payments to and receive
payments from.


|
Remembering Bob Hope - Son
of Paleface
by John Wendt
Scratch almost any Bob Hope
film and you will find a legal issue. Most of the time, especially
in the "Road Films" you can find Bob and Bing Crosby
in the midst of a scam and on the lam.
On
the occasion of his 100th birthday and now subsequent passing,
I would like to thank Bob Hope for a film that is often overlooked
but is chock full of legal concepts, Son of Paleface.
The 1952 Paramount classic, directed by Frank Tashlin and with
a screenplay by Frank Tashlin, Robert Welch and Joseph Quillan,
is the sequel to another Hope classic, The Paleface.
In The Paleface Hope
plays "Painless" Peter Potter, a dentist from out East
in a Wild West spoof co-starring Jane Russell as Calamity Jane.
The 1948 movie was Bob Hope's first color film and a huge box
office success winning the Academy Award for Best Song with "Buttons
and Bows." Now comes Son of Paleface where Junior,
a recent Harvard graduate and eastern tenderfoot heads to the
Wild West to claim the inheritance left by his daddy, "Paleface"
Potter.
So often films with legal concepts
are dramas - Twelve Angry Men, The Firm, A Man for
All Seasons. Or if there is a comedy it still focuses on
a courtroom or law school- My Cousin Vinny, Adam's Rib
or Legally Blonde. Here the legal concepts are almost
hidden in the film and that's the beauty of it. They come so
fast and furiously that you often don't see them but they are
there, including: robbery, criminal law, federalism, wills, creditors
remedies, community property, bribery, negligence, product liability,
consumer protection, fraud and even animal rights and conjugal
visits for prisoners. And in true Hope fashion, the jokes come
so quickly that you can easily miss many of them. And some of
the jokes are so bad, so corny, and at times, so obnoxious, that
they are good.
At the beginning of the film
California is being hit by a non-stop series of stagecoach hold-ups
by "The Torch" (Jane Russell). Despite increasing rewards,
there is no luck and Governor Freeman asks for Federal Aid. Coming
to the rescue in better than Indiana Jones fashion, are Federal
Agents, Roy Barton (played by Roy Rogers), Doc Lovejoy (played
by Lloyd Corrigan) and, of course, Roy's horse, Trigger, "The
Smartest Horse in the Movies."
They soon figure out that the
town of Sawbuck Pass is The Torch's headquarters.
Governor Freeman: "Be
careful, Roy. If The Torch ever finds out that you and Doc are
Federal Agents, you'll never get out alive."
Roy: "We have before.
You see, Governor, I disguise myself with a song and Doc hides
behind a bottle of patent medicine."
In Sawbuck Pass, Roy, the singing
cowboy, preps the crowd for Doc's pitch of the sure to be FDA
approved patent medicine.
Doc (from his peddler's wagon):
"And now, Ladies and Gentlemen, my partner and his four-legged
friend have told you a few, only a few, of the curative powers
of Doc Lovejoy's Wonder Tonic. Now, who's going to be the first
one to waltz up and purchase a clean bill of health?"
Also under cover is The Torch's
chief henchman, Kirk (Bill Williams)
Kirk: "Hey, Doc. I'd like
to buy a bottle for the sheriff. He's suffering from 'Torch Trouble.'"
Sheriff: "That ain't funny,
mister."
Kirk: "Ain't funny having
bandits steal our gold. Getting so nobody's safe. The next thing
you know The Torch will be riding in, shooting up the town."
Enter Junior Potter fresh from
Harvard in his new horseless carriage, emitting smoke and backfiring
like gunshots.
Junior (in the midst of the
smoke): "Somebody must be smoking a full pack. (As the smoke
clears to reveal him and his horseless carriage in full Harvard
regalia) "Easy folks, it's only me. Only me! That's the
understatement of the year!"
With reckless driving he creates
havoc in the streets and spews mud all over town and its inhabitants.
Junior: "Out of my way!
I'm a Harvard Man!"
The steering wheel comes off
and he literally runs into and knocks over Roy and Doc's wagon
causing damage and sending Doc, Roy and Trigger into the mud.
Junior is upset because the wagon ran into him!
Junior: "A scratch
Look
a scratch on my mudguard. Sheriff
Where's the Sheriff?"
Sheriff: "I'm the Sheriff."
Junior: "Oh, you the man?
Well, Sheriff, run down to the corner and get me a crooked lawyer.
How do you like that? Look at the fellow rolling in the mud.
Arrest him for drunk driving. I'm an innocent man and if you
have any justice in you, you'll accept my bribe."
Roy: "What's the big idea?
Look what you did to our wagon, my horse!"
Junior (looking at Trigger):
"Quarantine that beast. He's got chicken pox."
Roy (grabbing Junior): Listen
you."
Junior: "Please, lips
that touch liquor shall never touch mine."
Roy: "I never touched
a drop in my life." (A great reference to Roy Roger's famous
temperance position.)
Junior: "Then somebody's
been putting bourbon in your toothpaste."

Now you'll pay for that wagon, stranger, or you'll go to the
hoosgow."
Junior: "The 'whogow?'
Oh, the 'hoosgow.' Hold on, you can't put a Harvard man in jail!
It's unsanitary!"
Roy: "What are you going
to pay for that wagon with?"
Junior: "A preposition
at the end of a sentence and you split your infinitives. Next
thing you know he'll be dangling his participles. Oh, oh, shame
on you, the school marm will certainly here about this, sir.
Now, can one of you peasants direct me to the bank? I'm here
to claim the inheritance left by my daddy, Paleface Potter."
Voice from the crowd: "You
Paleface's son?"
Junior: "You're staring
right at him"
The crowd, in fact the entire
town gathers at the bank. At the Bank, Mr. Stoner (Harry Von
Zell) reads the will to Junior.
Mr. Stoner: "'The reason
I leave my money to my son, Junior, is that being of sound mind'
- Well, I won't bother to read the last paragraph, Junior. It's
merely an expression of your father's love for you, his son."
Junior: "Oh, just a minute,
just a minute. I was so young at the time I don't remember many
of the things Daddy said about me. He poured out his heart in
this will. I'd kind of like to read it."
 I was the only child.
All Dad's friends like me! What a reception! All those smiling
faces out there."
 You see your father left
town in a hurry. He left a lot of bills to a lot of people. They
expect to be paid out of the money you inherit."
Junior and Mr. Stoner go to
the back room so that Junior can open his daddy's chest and claim
his immense inheritance.
Mr. Stoner: "There's your
father's chest, Junior. Hasn't been moved since he put it there.
Here's the key."
Junior: "It's a Yale lock.
I wish I had my gloves."
Meanwhile Mr. Stoner and his
assistant, Waverly, move to the front office to give Junior some
privacy to open the literal treasure chest.
Mr. Stoner (to Waverly): "If
they hang Junior Potter they should be ashamed of themselves.
For his sake I hope he finds a lot of money."
Waverly: "The way that
mob's attacking he'll need it."
Mr. Stoner: "Look at that
big fellow with the block and tackle. They'll tear him limb from
limb. Oh!!!!!!!!"
Waverly: "This whole thing
makes me sick to my stomach."
Mr. Stoner: "Well, Junior
will be worse than sick to his stomach if doesn't bring that
gold out here.
In the meantime Junior opens
his father's treasure chest, only to find
nothing!
Feigning "gold fever"
he buys some time. According to the will he's got two days to
pay off his creditors.
Junior: "What's your name,
honey?"
Mike: "My friends call
me 'Mike.'"
Junior: "Pretty masculine
handle for such a feminine pot of goodies. Mind if I take pot
luck?"
As he goes to get his horseless
carriage to take Mike on a date, his daddy's former partner,
Ebenezer Hawkins (Paul E. Burns) tells him to concentrate on
the riddle that Paleface left him to find the gold rather than
taking Mike out on a date.
Eb: "You've got not time
for romance, boy! You've got to think!"
Junior: "I've been doing
plenty of thinking. I didn't go to college fourteen years for
nothing! I've got it all figured out. It just so happens the
richest girl in town is crazy about me."
Eb: "You mean Mike?"
Junior: "Ha hah. By tomorrow
she'll be Mrs. Mike Potter. Don't you get it? I marry her. This
is California. Community property. I divide her money. With my
half I'll pay my stingy old Daddy's bills. The rest is gravy."
Eb: "But, we'll have that
woman on our hands!"
Junior: "Please, keep
your hands out of my gravy."
And the race is on to find
the gold and pay off the creditors at the same time.
The rest of the movie only
gets better. In the end, Bob, for once, gets the girl, the creditors
get paid and Roy and Trigger ride off into the sunset!
And all agree that Son of Paleface
is one of the few sequels that may be even better than the original.
It's definitely worth your
time and effort to find and watch both films and realize what
a treasure we had in Bob Hope.
Posted July 28, 2003
|


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Hi! I am a computer science undergraduate student at the National University of Singapore. I code mainly in Python and have developed telegram chatbots.
Ensure soldiers’ physical fitness and weapons proficiency by scheduling training and tests. Provided a monthly powerpoint report that is presented to the chief supply officer. Assisted in SAF digitalisation initiative by developing a python telegram chatbot for the cookhouse at Combat Service Support Command HQ. The chatbot allows soldiers to view the menu and provide feedback on the food remotely through their phones. Awards: Commander's Coin
Developed an android application for real-time image processing using computer vision techniques
Provide lego robotics training and coaching at primary and secondary schools as well as enrichment classes at Nullspace Centre for Robotics Learning.
CS2030 Programming Methodology Teaching Assistant
Wrote software for autonomous navigation of a tank-like vehicle using Robot Operating System
View ProjectDeveloped a telegram bot for SAF cookhouse at CSSCOM HQ using python, hosted on google cloud.
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Welcome to Sisman Pizza!
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Learning tasks encapsulate the data set and additional meta information about a machine learning problem, for example the name of the target variable for supervised problems.
To manually create a task from a data.frame()
or data.table()
, you must first determine the task type to select the respective constructor:
character
/factor
) with only few distinct values. mlr3::TaskClassif
.integer
/double
). mlr3::TaskRegr
.TaskSurvival
in add-on package mlr3surival
.TaskOrdinal
in add-on package mlr3ordinal
.Let’s assume we want to create a simple regression task using the mtcars
data set from the package datasets
to predict the column "mpg"
(miles per gallon). We only take the first two features here to keep the output in the following examples short.
data("mtcars", package = "datasets")
data = mtcars[, 1:3]
str(data)
#> 'data.frame': 32 obs. of 3 variables:
#> $ mpg : num 21 21 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 ...
#> $ cyl : num 6 6 4 6 8 6 8 4 4 6 ...
#> $ disp: num 160 160 108 258 360 ...
Next, we create the task by providing
id
: identifier for the task, used in plots and summariesbackend
: here, we simply provide the data.frame()
which is internally converted to a mlr3::DataBackendDataTable
. For more fine-grain control over how the data is stored internally, we could also construct a mlr3::DataBackend
manually.target
: Column name of the target column for the regression problem.task_mtcars = TaskRegr$new(id = "cars", backend = data, target = "mpg")
print(task_mtcars)
#> <TaskRegr:cars> (32 x 3)
#> Target: mpg
#> Features (2):
#> * dbl (2): cyl, disp
#>
#> Public: backend, cbind(), clone(), col_info, col_roles,
#> data_formats, data(), droplevels(), feature_names,
#> feature_types, filter(), formula(), groups, hash, head(), id,
#> levels(), measures, missings(), ncol, nrow, properties, rbind(),
#> replace_features(), row_ids, row_roles, select(),
#> set_col_role(), set_row_role(), target_names, task_type,
#> truth(), weights
The print()
method gives a short summary of the task: It has 32 observations, 3 columns of which 2 columns are features.
mlr3
ships with some predefined machine learning tasks. These are stored in a mlr3::Dictionary
, which is a simple key-value store named mlr3::mlr_tasks
. We can obtain a summarizing overview of all stored tasks by converting the dictionary to a data.table()
as.data.table(mlr_tasks)
#> key task_type measures nrow ncol lgl int dbl chr fct
#> <char> <char> <list> <int> <int> <int> <int> <int> <int> <int>
#> 1: bh regr regr.mse 506 19 0 3 13 0 2
#> 2: iris classif classif.mmce 150 5 0 0 4 0 0
#> 3: mtcars regr regr.mse 32 11 0 0 10 0 0
#> 4: pima classif classif.mmce 768 9 0 0 8 0 0
#> 5: sonar classif classif.mmce 208 61 0 0 60 0 0
#> 6: spam classif classif.mmce 4601 58 0 0 57 0 0
#> 7: wine classif classif.mmce 178 14 0 2 11 0 0
#> 8: zoo classif classif.mmce 101 17 15 1 0 0 0
#> ord
#> <int>
#> 1: 0
#> 2: 0
#> 3: 0
#> 4: 0
#> 5: 0
#> 6: 0
#> 7: 0
#> 8: 0
For illustration purposes, we now retrieve the popular iris data set from mlr_tasks
as a classification task:
task_iris = mlr_tasks$get("iris")
print(task_iris)
#> <TaskClassif:iris> (150 x 5)
#> Target: Species
#> Features (4):
#> * dbl (4): Petal.Length, Petal.Width, Sepal.Length, Sepal.Width
#>
#> Public: backend, cbind(), class_n, class_names, clone(),
#> col_info, col_roles, data_formats, data(), droplevels(),
#> feature_names, feature_types, filter(), formula(), groups, hash,
#> head(), id, levels(), measures, missings(), ncol, negative,
#> nrow, positive, properties, rbind(), replace_features(),
#> row_ids, row_roles, select(), set_col_role(), set_row_role(),
#> target_names, task_type, truth(), weights
The task properties and characteristics can be queried using the task’s public member values and methods (see ?mlr3::Task
). Most of them should be self-explanatory, e.g.,
task_iris = mlr_tasks$get("iris")
# public member values
task_iris$nrow
#> [1] 150
task_iris$ncol
#> [1] 5
# public member methods
task_iris$head(n = 3)
#> Species Petal.Length Petal.Width Sepal.Length Sepal.Width
#> <fctr> <num> <num> <num> <num>
#> 1: setosa 1.4 0.2 5.1 3.5
#> 2: setosa 1.4 0.2 4.9 3.0
#> 3: setosa 1.3 0.2 4.7 3.2
In mlr3
, each row (observation) has a unique identifier which can be either integer()
or character()
. These can be used to select specific rows.
# iris uses integer row_ids
head(task_iris$row_ids)
#> [1] 1 2 3 4 5 6
# retrieve data for rows with ids 1, 51, and 101
task_iris$data(rows = c(1, 51, 101))
#> Species Petal.Length Petal.Width Sepal.Length Sepal.Width
#> <fctr> <num> <num> <num> <num>
#> 1: setosa 1.4 0.2 5.1 3.5
#> 2: versicolor 4.7 1.4 7.0 3.2
#> 3: virginica 6.0 2.5 6.3 3.3
# mtcars uses the rownames of the original data set
head(task_mtcars$row_ids)
#> [1] "AMC Javelin" "Cadillac Fleetwood" "Camaro Z28"
#> [4] "Chrysler Imperial" "Datsun 710" "Dodge Challenger"
# retrieve data for rows with id "Datsun 710"
task_mtcars$data(rows = "Datsun 710")
#> mpg cyl disp
#> <num> <num> <num>
#> 1: 22.8 4 108
Note that the method $data()
is only an accessor and does not modify the underlying data/task.
Analogously, each column has an identifier, which is often just called column name. These are stored in the public fields feature_names
and target_names
:
task_iris$feature_names
#> [1] "Petal.Length" "Petal.Width" "Sepal.Length" "Sepal.Width"
task_iris$target_names
#> [1] "Species"
# retrieve data for rows 1, 51, and 101 and only select column "Species"
task_iris$data(rows = c(1, 51, 101), cols = "Species")
#> Species
#> <fctr>
#> 1: setosa
#> 2: versicolor
#> 3: virginica
To retrieve the complete data set, e.g. for a closer inspection, convert to a data.table()
:
summary(as.data.table(task_iris))
#> Species Petal.Length Petal.Width Sepal.Length
#> setosa :50 Min. :1.000 Min. :0.100 Min. :4.300
#> versicolor:50 1st Qu.:1.600 1st Qu.:0.300 1st Qu.:5.100
#> virginica :50 Median :4.350 Median :1.300 Median :5.800
#> Mean :3.758 Mean :1.199 Mean :5.843
#> 3rd Qu.:5.100 3rd Qu.:1.800 3rd Qu.:6.400
#> Max. :6.900 Max. :2.500 Max. :7.900
#> Sepal.Width
#> Min. :2.000
#> 1st Qu.:2.800
#> Median :3.000
#> Mean :3.057
#> 3rd Qu.:3.300
#> Max. :4.400
It is possible to assign special roles to (subsets of) rows and columns.
For example, the previously constructed mtcars task has the following column roles:
task_mtcars$col_roles
#> $feature
#> [1] "cyl" "disp"
#>
#> $target
#> [1] "mpg"
#>
#> $label
#> character(0)
#>
#> $order
#> character(0)
#>
#> $groups
#> character(0)
#>
#> $weights
#> character(0)
Now, we want the original rownames()
of mtcars
to be a regular feature column. Thus, we first pre-process the data.frame
and then re-create the task.
library("data.table")
# with `keep.rownames`, data.table stores the row names in an extra column "rn"
data = as.data.table(mtcars[, 1:3], keep.rownames = TRUE)
task = TaskRegr$new(id = "cars", backend = data, target = "mpg")
# we now have integer row_ids
task$row_ids
#> [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
#> [24] 24 25 26 27 28 29 30 31 32
# there is a new "feature" called "rn"
task$feature_names
#> [1] "cyl" "disp" "rn"
The column “rn” is now a regular feature. As this is a unique string column, most machine learning algorithms will have problems to process this feature without some kind of preprocessing. However, we still might want to carry rn
around for different reasons. E.g., we can use the row names in plots or to associate outliers with the row names. This being said, we need to change the role of the row names column rn
and remove it from the set of active features.
task$feature_names
#> [1] "cyl" "disp" "rn"
task$set_col_role("rn", new_roles = "label")
# "rn" not listed as feature any more
task$feature_names
#> [1] "cyl" "disp"
# also vanished from "data" and "head"
task$data(rows = 1:2)
#> mpg cyl disp
#> <num> <num> <num>
#> 1: 21 6 160
#> 2: 21 6 160
task$head(2)
#> mpg cyl disp
#> <num> <num> <num>
#> 1: 21 6 160
#> 2: 21 6 160
Note that no copies of the underlying data is inflicted by this operation. By changing roles, only the view on the data is changed, not the data itself.
Just like columns, it is also possible to assign different roles to rows. Rows can have two different roles:
"use"
: Rows that are generally available for model fitting (although they may also be used as test set in resampling). This is the default role."validation"
: Rows that are held back (see below). Rows which have missing values in the target column upon task creation are automatically moved to the validation set.There are several reasons to hold some observations back or treat them differently:
The methods set_col_role()
and set_row_role()
change the view on the data and can be used to subset the task. For convenience, the method filter()
subsets the task based on row ids, and select()
subsets the task based on feature names. All these operations only change the view on the data, without creating a copy of it, but modify the task in-place.
task = mlr_tasks$get("iris")
task$select(c("Sepal.Width", "Sepal.Length")) # keep only these features
task$filter(1:3) # keep only these rows
task$head()
#> Species Sepal.Length Sepal.Width
#> <fctr> <num> <num>
#> 1: setosa 5.1 3.5
#> 2: setosa 4.9 3.0
#> 3: setosa 4.7 3.2
Additionally, the methods rbind()
and cbind()
allow to add extra rows and columns to a task, respectively. The method replace_features()
is a convenience wrapper around select()
and cbind()
. Again, the original data set stored in the original mlr3::DataBackend
is not altered in any way.