General InformationFor information about reporting or asking questions about security problems, please see the security page of the Commons project. Apache Commons Collections Security VulnerabilitiesThis page lists all security vulnerabilities fixed in released versions of Apache Commons Collections. Each vulnerability is given a security impact rating by the development team - please note that this rating may vary from platform to platform. We also list the versions of Commons Collections the flaw is known to affect, and where a flaw has not been verified list the version with a question mark. Please note that binary patches are never provided. If you need to apply a source code patch, use the building instructions for the Commons Collections version that you are using. If you need help on building Commons Collections or other help on following the instructions to mitigate the known vulnerabilities listed here, please send your questions to the public Collections Users mailing list. If you have encountered an unlisted security vulnerability or other unexpected behaviour that has security impact, or if the descriptions here are incomplete, please report them privately to the Apache Security Team. Thank you. Fixed in Apache Commons Collections 3.2.2 and 4.1High: Remote Code Execution during object de-serialization The Apache Commons Collections library contains various classes in the "functor" package which are serializable and use reflection. This can be exploited for remote code execution attacks by injecting specially crafted objects to applications that de-serialize java objects from untrusted sources and have the Apache Commons Collections library in their classpath and do not perform any kind of input validation. The implemented fix can be tracked via its related issue COLLECTIONS-580:
The potential exploit was first presented at AppSecCali2015 [3] on 28 January 2015 by Gabriel Lawrence and Chris Frohoff. Based on these exploits, Stephen Breen published on 06 November 2015 attack scenarios [4] for various products like WebSphere, JBoss, Jenkins, WebLogic, and OpenNMS. The Security team was not informed about these security problems prior to their publication. No CVE id was assigned for the Apache Commons Collections library, please refer to [1] or [2] for more information about the general problem with Java serialization. Affects: 3.0 - 4.0 Related links:
Errors and OmmissionsPlease report any errors or omissions to the dev mailing list. |


This is the official AtomicDEX mobile beta program channel -
Android: https://play.google.com/store/apps/details?id=com.komodoplatform.atomicdex - iOS: https://testflight.apple.com/join/c2mOLEoC - Please use https://github.com/KomodoPlatform/atomicdex/issues for bug reports and feature requests. For critical security bug reports please do send us your encrypted (https://pgp.mit.edu/pks/lookup?op=get&search=0x379287998EE6CF47) report to<EMAIL_ADDRESS>and allow up to 24h for reply. For atomicDEX API (mm2) related issue reports or feature requests please do use https://github.com/KomodoPlatform/atomicDEX-API/issues
100 messages
Before 05-Dec-19 12:00 AM
phideas20-Aug-19 05:28 PM
After a little bit of struggle to create a wallet (slow encryption, freezing ui) I am happy to swap back and forth on mobile. Dozen of swaps, no failure so far. Native Android UX very slick. It's gonna need o lot of tweak and polish to make it production ready, but overall I am impressed.(edited)
3
phideas20-Aug-19 05:37 PM
I think currently the best UX on Android belongs to Exodus Wallet. Definitely recommend to check that out. With a little effort Atomic Dex could get pretty close to that.
1
ca33320-Aug-19 05:49 PM
Thanks for the feedback @phideas - towards end of beta stage our main focus will be UX/UI enhancement (charts, improved UX,...).
PTYX20-Aug-19 05:59 PM
@phideas exodus mobile is a beaut
buralux20-Aug-19 07:07 PM
Hello in the last release The vertical position is not adjusted to the screen, in horizontal mode it's correct
I don’t know if it’s only on French mode?
I’m on iOS
TonyL20-Aug-19 07:21 PM
What iphone model do you have @buralux ? Also could you please try to delete the app and install again to see if problem remains? (at first please ensure that you have an access to your seed)
1
buralux20-Aug-19 07:21 PM
XS
I try to delete app like you mention
TonyL20-Aug-19 07:23 PM
Most probably you're correct that language doesn't fit - gonna try to get app with french language on my side now
buralux20-Aug-19 07:23 PM
for seed
Ok
I try English before delete
Yes problem is the language
TonyL20-Aug-19 07:27 PM
Thank you for additional info!
TonyL20-Aug-19 07:40 PM
Looks fine on my XR. If you have a time could you please try to re-install @buralux ?
Philtr20-Aug-19 09:47 PM
I do not get a connection at atomicDEX even after reinstalling and restarting the phone. Cache was also emptied. No improvement.
Philtr20-Aug-19 10:09 PM
Use version 0.1.6
saskboy21-Aug-19 05:28 AM
I get that screen the last week.
Philtr21-Aug-19 06:40 AM
I have the same problem.
phideas21-Aug-19 08:30 AM
Same wallet initialization problem. It happens on cold start of the app. UI hang and freeze for minutes. After a little wait and two app restarts it finally loads up and the UI is quick and responsive again. Android on Samsung S10.(edited)
smk762 - dracocanis ominator21-Aug-19 09:26 AM
Same, also on s10. Can confirm that it "wakes up" and works ok once it gets past it.
denio21-Aug-19 01:10 PM
Hey guys, i love AtomicDex Would it be possible to add Hush. That would be amazing!
Oszy21-Aug-19 01:11 PM
You can swap hush in chainswap (using atomicdex API)
denio21-Aug-19 01:11 PM
But there is no way atm to swap direct in the Beta App or?
Oszy21-Aug-19 01:12 PM
not in the mobile app yet, but can do on pc
denio21-Aug-19 01:13 PM
rly interesting! Is there a "How To" or something? Sorry for the noob question
Oszy21-Aug-19 01:14 PM
I'll DM you the discord for Chainswap, don't want to spam here
Thank you for report! Can confirm this issue (it's created in internal bug tracking system few days ago also)
Philtr21-Aug-19 10:09 PM
Logging in and creating a wallet works without any problems. In addition, I can not connect to the portfolio. Neither in the wifi nor in the mobile network. It loads without results. A reboot and an empty cache did not change anything.
saskboy22-Aug-19 06:34 AM
Tried leaving the app open for several minutes and it never connected again.
zephuros22-Aug-19 06:55 AM
just got this fired up on my iphone ETH deposit was fast testing first trade now for ETH to KMD and this app looks slick nice work
zephuros22-Aug-19 07:11 AM
looks like it let me open 2 orders with the same ETH not sure how that will work
gcharang22-Aug-19 07:12 AM
@zephuros for two different pairs?
if so the first order that matches will cancel the other order
zephuros22-Aug-19 07:13 AM
the first time it did cancel my eth to kmd and then let me do eth to rvn, now i got both going we will see which one goes thru first
how long does a swap take on avgerage?
gcharang22-Aug-19 07:15 AM
depends on the block times of the involved coins
faster blocktimes --> faster swaps
zephuros22-Aug-19 07:15 AM
got ya
rvn takes forever so kmd trade should go thru first
anything you need me to try on my iphone?
gcharang22-Aug-19 07:18 AM
@zephuros did both orders match and swaps started? eth/kmd and eth/rvn ?
zephuros22-Aug-19 07:18 AM
both are on 2/3 right now
gcharang22-Aug-19 07:18 AM
and both are using the maximum available eth?
zephuros22-Aug-19 07:19 AM
looks like the eth is locked now to
yes
ok rvn went thru and now the eth to kmd is still open
i am guessing this one will fail
gcharang22-Aug-19 07:22 AM
@zephuros what happened with the eth/kmd swap?
zephuros22-Aug-19 07:22 AM
2/3 right now still
still surprised it let me get that far tho
gcharang22-Aug-19 07:23 AM
it shouldn't actually
can you verify the amount of eth being swapped in both the trades?
zephuros22-Aug-19 07:23 AM
sure
.0879 eth for 482.4852 rvn which went thru and pending one is .0879 eth for 20.5045 kmd
only put little eth in to test
gcharang22-Aug-19 07:26 AM
once the eth/kmd swap fails or times out or god forbid goes throuh, can you send the log thrugh DM?
zephuros22-Aug-19 07:26 AM
sure
i hope it fails but ether way got to fix that
if it goes thru i will some extra kmd millionair lol jk
1
are you guys doing a bug bounty ?
ether way all good just wondering
gcharang22-Aug-19 07:29 AM
not really, but there are plans to reward active testers
zephuros22-Aug-19 07:29 AM
kool
it took 20 mins but just failed that order
woot
jl777c22-Aug-19 08:08 AM
@gcharang there should be a bug about not finding conflicting transactions sooner. it seems if there is a swap that cannot possibly work (due to the same funds being spent), then we can detect it sooner. then again, it could be tricky as it is balance based
gcharang22-Aug-19 08:20 AM
yes, that was my thought as ETH doesn't have utxos
Small Fish22-Aug-19 09:52 AM
Will be once possible to exchange iota on AtomicDEX?
And btw I have most of my Komodo blocked on the dex because some swap didn’t go through and although the transactions timeout coins are still blocked
And there is no transaction to cancel they are all timeout
gcharang22-Aug-19 10:04 AM
@Small Fish the locked amount should be back to you in some time
there are no plans to integrate IOTA currently as it is an entirely different system and it is not a blockchain
it might be possible in the future but further research is needed
Small Fish22-Aug-19 10:05 AM
Thank for answer
The amount is blocked since 3 weeks
So I don’t think it will come back or did u manually unlock it ?
The coin are not really important it’s just to avoid further complication with bigger amount
gcharang22-Aug-19 10:08 AM
yes, there were problems with unlocking stuck swaps in the previous versions
now it should be better
once you send us the details, we can advise you on how to unlock the coins
Small Fish22-Aug-19 10:35 AM
I have some trouble to do with my phone
Will do later when I got my computer
gcharang22-Aug-19 10:37 AM
sure!
TonyL22-Aug-19 10:45 AM
Settings -> Logout and Login then might help in this case @Small Fish
if it not - please uninstall/install application (please ensure that you control the seed first)(edited)
dudezmobi22-Aug-19 02:51 PM
yup yup. success
1
2
1
phideas22-Aug-19 07:22 PM
Some swaps failed today on Qtum pairs. No loss or locked funds. Swap was successfull in the end with slightly less amount.
V__C23-Aug-19 12:26 AM
Is it possible to integrate cryptonight based coins with atomicDEX ?


Publish default database¶
Google Earth Enterprise (GEE) Server allows users to publish one 3D database as the default database. This is the database that will be served when Earth Client signs into the base URL without including a database name.
Publishing as Default
To make a 3D database the default database, simply select “On” for “Default Database” when publishing the database.
This can also be done from the command line by including the --setecdefault
option with the geserveradmin --publishdb
command.
e.g., geserveradmin --publishdb SFDb_3d --targetpath SFDb_3d --setecdefault
Note that only one database can be the default at any given time. If you publish a database as the default, the previous default will be cleared.
Viewing the Default Database
To view the default database in Earth Client, simply sign into the base URL of the GEE Server. (e.g., http://my-opengee-server.com)


As explained in the theming guide, a theme in Angular Material consists of
configurations for the color
, density
and typography
systems. As some of these individual
systems have default configurations, some usage patterns may cause duplication in the CSS output.
Below are examples of patterns that generate duplicative theme styles:
Example #1
@use '@angular/material' as mat;
$light-theme: mat.define-light-theme((color: ...));
$dark-theme: mat.define-dark-theme((color: ...));
// Generates styles for all systems configured in the theme. In this case, color styles
// and default density styles are generated. Density is in themes by default.
@include mat.all-component-themes($light-theme);
.dark-theme {
// Generates styles for all systems configured in the theme. In this case, color styles
// and the default density styles are generated. **Note** that this is a problem because it
// means that density styles are generated *again*, even though only the color should change.
@include mat.all-component-themes($dark-theme);
}
To fix this, you can use the dedicated mixin for color styles for the .dark-theme
selector. Replace the all-component-themes
mixin and include the dark theme using the
all-component-colors
mixin. For example:
@use '@angular/material' as mat;
...
@include mat.all-component-themes($light-theme);
.dark-theme {
// This mixin only generates the color styles now.
@include mat.all-component-colors($dark-theme);
}
Typography can also be configured via Sass mixin; see all-component-typographies
.
Example #2
Theme styles could also be duplicated if individual theme mixins are used. For example:
@use '@angular/material' as mat;
@include mat.all-component-themes($my-theme);
.my-custom-dark-button {
// This will also generate the default density styles again.
@include mat.button-theme($my-theme);
}
To avoid this duplication of styles, use the dedicated mixin for the color system and extract the configuration for the color system from the theme.
@use '@angular/material' as mat;
.my-custom-dark-button {
// This will only generate the color styles for `mat-button`.
@include mat.button-color($my-theme);
}
If your application intentionally duplicates styles, a global Sass variable can be set to disable duplication warnings from Angular Material. For example:
@use '@angular/material' as mat;
mat.$theme-ignore-duplication-warnings: true;
// Include themes as usual.
@include mat.all-component-themes($light-theme);
...


Working with the Shell¶
New in version 0.3.
One of the reasons everybody loves Python is the interactive shell. It basically allows you to execute Python commands in real time and immediately get results back. Flask itself does not come with an interactive shell, because it does not require any specific setup upfront, just import your application and start playing around.
There are however some handy helpers to make playing around in the shell a
more pleasant experience. The main issue with interactive console
sessions is that you’re not triggering a request like a browser does which
means that g
, request
and others are not
available. But the code you want to test might depend on them, so what
can you do?
This is where some helper functions come in handy. Keep in mind however that these functions are not only there for interactive shell usage, but also for unittesting and other situations that require a faked request context.
Generally it’s recommended that you read the The Request Context chapter of the documentation first.
Creating a Request Context¶
The easiest way to create a proper request context from the shell is by
using the test_request_context
method which creates
us a RequestContext
:
>>> ctx = app.test_request_context()
Normally you would use the with statement to make this request object
active, but in the shell it’s easier to use the
push()
and
pop()
methods by hand:
>>> ctx.push()
From that point onwards you can work with the request object until you call pop:
>>> ctx.pop()
Firing Before/After Request¶
By just creating a request context, you still don’t have run the code that
is normally run before a request. This might result in your database
being unavailable if you are connecting to the database in a
before-request callback or the current user not being stored on the
g
object etc.
This however can easily be done yourself. Just call
preprocess_request()
:
>>> ctx = app.test_request_context()
>>> ctx.push()
>>> app.preprocess_request()
Keep in mind that the preprocess_request()
function
might return a response object, in that case just ignore it.
To shutdown a request, you need to trick a bit before the after request
functions (triggered by process_response()
) operate on
a response object:
>>> app.process_response(app.response_class())
<Response 0 bytes [200 OK]>
>>> ctx.pop()
The functions registered as teardown_request()
are
automatically called when the context is popped. So this is the perfect
place to automatically tear down resources that were needed by the request
context (such as database connections).
Further Improving the Shell Experience¶
If you like the idea of experimenting in a shell, create yourself a module with stuff you want to star import into your interactive session. There you could also define some more helper methods for common things such as initializing the database, dropping tables etc.
Just put them into a module (like shelltools and import from there):
>>> from shelltools import *


| CONTENTS | PREV | NEXT | Java Remote Method Invocation |
RemoteStub
Class
Thejava.rmi.server.RemoteStub
class is the common superclass for stubs of remote objects. Stub objects are surrogates that support exactly the same set of remote interfaces defined by the actual implementation of a remote object.
package java.rmi.server; public abstract class RemoteStub extends java.rmi.RemoteObject { protected RemoteStub() {...} protected RemoteStub(RemoteRef ref) {...} protected static void setRef(RemoteStub stub, RemoteRef ref) {...} }
The first constructor ofRemoteStub
creates a stub with anull
remote reference. The second constructor creates a stub with the given remote reference, ref.The
setRef
method is deprecated (and unsupported) as of the Java 2 SDK, Standard Edition, v1.2.
Clients interact with stub (surrogate) objects that have exactly the same set of remote interfaces defined by the remote object's class; the stub class does not include the non-remote portions of the class hierarchy that constitutes the object's type graph. This is because the stub class is generated from the most refined implementation class that implements one or more remote interfaces. For example, if C extends B and B extends A, but only B implements a remote interface, then a stub is generated from B, not C.Because the stub implements the same set of remote interfaces as the remote object's class, the stub has the same type as the remote portions of the server object's type graph. A client, therefore, can make use of the built-in Java programming language operations to check a remote object's type and to cast from one remote interface to another.
Stubs are generated using the
rmic
compiler.
final
The following methods are declaredfinal
in thejava.lang.Object
class and therefore cannot be overridden by any implementation:
The default implementation forgetClass
is appropriate for all objects written in the Java programming language, local or remote; so, the method needs no special implementation for remote objects. When used on a remote stub, thegetClass
method reports the exact type of the stub object, generated byrmic
. Note that stub type reflects only the remote interfaces implemented by the remote object, not that object's local interfaces.The
wait
andnotify
methods ofjava.lang.Object
deal with waiting and notification in the context of the Java programming language's threading model. While use of these methods for remote stubs does not break the threading model, these methods do not have the same semantics as they do for local objects written in the Java programming language. Specifically, these methods operate on the client's local reference to the remote object (the stub), not the actual object at the remote site.


Class Kernel
- java.lang.Object
-
- com.jme.opencl.AbstractOpenCLObject
-
- com.jme.opencl.Kernel
-
- All Implemented Interfaces:
OpenCLObject
public abstract class Kernel extends AbstractOpenCLObject
Wrapper for an OpenCL kernel, a piece of executable code on the GPU.Terminology:
A Kernel is executed in parallel. In total number of parallel threads, called work items, are specified by the global work size (of typeKernel.WorkSize
. These threads are organized in a 1D, 2D or 3D grid (of coarse, this is only a logical view). Inside each kernel, the id of each thread (i.e. the index inside this grid) can be requested byget_global_id(dimension)
withdimension=0,1,2
.
Not all threads can always be executed in parallel because there simply might not be enough processor cores. Therefore, the concept of a work group is introduced. The work group specifies the actual number of threads that are executed in parallel. The maximal size of it can be queried byDevice.getMaxiumWorkItemsPerGroup()
. Again, the threads inside the work group can be organized in a 1D, 2D or 3D grid, but this is also just a logical view (specifying how the threads are indexed). The work group is important for another concept: shared memory Unlike the normal global or constant memory (passing aBuffer
object as argument), shared memory can't be set from outside. Shared memory is allocated by the kernel and is only valid within the kernel. It is used to quickly share data between threads within a work group. The size of the shared memory is specified by setting an instance ofKernel.LocalMem
orKernel.LocalMemPerElement
as argument.
Due to heavy register usage or other reasons, a kernel might not be able to utilize a whole work group. Therefore, the actual number of threads that can be executed in a work group can be queried bygetMaxWorkGroupSize(com.jme.opencl.Device)
, which might differ from the value returned from the Device.There are two ways to launch a kernel:
First, arguments and the work group sizes can be set in advance (setArg(index, ...)
,setGlobalWorkSize(...)
andsetWorkGroupSize(...)
. Then a kernel is launched byRun(com.jme.opencl.CommandQueue)
.
Second, two convenient functions are provided that set the arguments and work sizes in one call:Run1(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
andRun2(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
.- Author:
- shaman
- See Also:
Program.createKernel(java.lang.String)
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Kernel.LocalMem
A placeholder for kernel arguments representing local kernel memory.static class
Kernel.LocalMemPerElement
A placeholder for a kernel argument representing local kernel memory per thread.static class
Kernel.WorkSize
The work size (global and local) for executing a kernel-
Nested classes/interfaces inherited from interface com.jme.opencl.OpenCLObject
OpenCLObject.ObjectReleaser
-
-
Field Summary
Fields Modifier and Type Field Description protected Kernel.WorkSize
globalWorkSize
The current global work sizeprotected Kernel.WorkSize
workGroupSize
The current local work size-
Fields inherited from class com.jme.opencl.AbstractOpenCLObject
releaser
-
-
Constructor Summary
Constructors Modifier Constructor Description protected
Kernel(OpenCLObject.ObjectReleaser releaser)
-
Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract int
getArgCount()
Kernel.WorkSize
getGlobalWorkSize()
abstract long
getMaxWorkGroupSize(Device device)
Returns the maximal work group size when this kernel is executed on the specified deviceabstract java.lang.String
getName()
Kernel.WorkSize
getWorkGroupSize()
Kernel
register()
Registers this object for automatic releasing on garbage collection.abstract Event
Run(CommandQueue queue)
Launches the kernel with the current global work size, work group size and arguments.Event
Run1(CommandQueue queue, Kernel.WorkSize globalWorkSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel.void
Run1NoEvent(CommandQueue queue, Kernel.WorkSize globalWorkSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel.Event
Run2(CommandQueue queue, Kernel.WorkSize globalWorkSize, Kernel.WorkSize workGroupSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel.void
Run2NoEvent(CommandQueue queue, Kernel.WorkSize globalWorkSize, Kernel.WorkSize workGroupSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel.void
RunNoEvent(CommandQueue queue)
Launches the kernel with the current global work size, work group size and arguments without returning an event object.abstract void
setArg(int index, byte b)
abstract void
setArg(int index, double d)
abstract void
setArg(int index, float f)
abstract void
setArg(int index, int i)
abstract void
setArg(int index, long l)
abstract void
setArg(int index, short s)
void
setArg(int index, Matrix3f mat)
abstract void
setArg(int index, Matrix4f mat)
abstract void
setArg(int index, Quaternion q)
abstract void
setArg(int index, Vector2f v)
abstract void
setArg(int index, Vector4f v)
abstract void
setArg(int index, Buffer t)
abstract void
setArg(int index, Image i)
abstract void
setArg(int index, Kernel.LocalMem t)
abstract void
setArg(int index, Kernel.LocalMemPerElement t)
void
setArg(int index, java.lang.Object arg)
Sets the kernel argument at the specified index.
The argument must be a known type:LocalMemPerElement, LocalMem, Image, Buffer, byte, short, int, long, float, double, Vector2f, Vector4f, Quaternion, Matrix3f, Matrix4f
.abstract void
setArg(int index, java.nio.ByteBuffer buffer, long size)
Raw version to set an argument.void
setGlobalWorkSize(int size)
Sets the global work size to a 1D gridvoid
setGlobalWorkSize(int width, int height)
Sets the global work size to be a 2D gridvoid
setGlobalWorkSize(int width, int height, int depth)
Sets the global work size to be a 3D gridvoid
setGlobalWorkSize(Kernel.WorkSize ws)
Sets the global work size.void
setWorkGroupSdize(int width, int height, int depth)
Sets the work group size to be a 3D gridvoid
setWorkGroupSize(int size)
Sets the work group size to be a 1D gridvoid
setWorkGroupSize(int width, int height)
Sets the work group size to be a 2D gridvoid
setWorkGroupSize(Kernel.WorkSize ws)
Sets the work group sizevoid
setWorkGroupSizeToNull()
Tells the driver to figure out the work group size on their own.java.lang.String
toString()
-
Methods inherited from class com.jme.opencl.AbstractOpenCLObject
finalize, getReleaser, release
-
-
-
-
Field Detail
-
globalWorkSize
protected final Kernel.WorkSize globalWorkSize
The current global work size
-
workGroupSize
protected final Kernel.WorkSize workGroupSize
The current local work size
-
-
Constructor Detail
-
Kernel
protected Kernel(OpenCLObject.ObjectReleaser releaser)
-
-
Method Detail
-
register
public Kernel register()
Description copied from interface:OpenCLObject
Registers this object for automatic releasing on garbage collection. By default, OpenCLObjects are not registered in theOpenCLObjectManager
, you have to release it manually by callingOpenCLObject.release()
. Without registering or releasing, a memory leak might occur.
Returnsthis
to allow calls likeBuffer buffer = clContext.createBuffer(1024).register();
.- Specified by:
register
in interfaceOpenCLObject
- Overrides:
register
in classAbstractOpenCLObject
- Returns:
this
-
getName
public abstract java.lang.String getName()
- Returns:
- the name of the kernel as defined in the program source code
-
getArgCount
public abstract int getArgCount()
- Returns:
- the number of arguments
-
getGlobalWorkSize
public Kernel.WorkSize getGlobalWorkSize()
- Returns:
- the current global work size
-
setGlobalWorkSize
public void setGlobalWorkSize(Kernel.WorkSize ws)
Sets the global work size.- Parameters:
ws
- the work size to set
-
setGlobalWorkSize
public void setGlobalWorkSize(int size)
Sets the global work size to a 1D grid- Parameters:
size
- the size in 1D
-
setGlobalWorkSize
public void setGlobalWorkSize(int width, int height)
Sets the global work size to be a 2D grid- Parameters:
width
- the widthheight
- the height
-
setGlobalWorkSize
public void setGlobalWorkSize(int width, int height, int depth)
Sets the global work size to be a 3D grid- Parameters:
width
- the widthheight
- the heightdepth
- the depth
-
getWorkGroupSize
public Kernel.WorkSize getWorkGroupSize()
- Returns:
- the current work group size
-
setWorkGroupSize
public void setWorkGroupSize(Kernel.WorkSize ws)
Sets the work group size- Parameters:
ws
- the work group size to set
-
setWorkGroupSize
public void setWorkGroupSize(int size)
Sets the work group size to be a 1D grid- Parameters:
size
- the size to set
-
setWorkGroupSize
public void setWorkGroupSize(int width, int height)
Sets the work group size to be a 2D grid- Parameters:
width
- the widthheight
- the height
-
setWorkGroupSdize
public void setWorkGroupSdize(int width, int height, int depth)
Sets the work group size to be a 3D grid- Parameters:
width
- the widthheight
- the heightdepth
- the depth
-
setWorkGroupSizeToNull
public void setWorkGroupSizeToNull()
Tells the driver to figure out the work group size on their own. Use this if you do not rely on specific work group layouts, i.e. because shared memory is not used.Run1(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
implicitly calls this method.
-
getMaxWorkGroupSize
public abstract long getMaxWorkGroupSize(Device device)
Returns the maximal work group size when this kernel is executed on the specified device- Parameters:
device
- the device- Returns:
- the maximal work group size
-
setArg
public abstract void setArg(int index, Kernel.LocalMemPerElement t)
-
setArg
public abstract void setArg(int index, Kernel.LocalMem t)
-
setArg
public abstract void setArg(int index, Buffer t)
-
setArg
public abstract void setArg(int index, Image i)
-
setArg
public abstract void setArg(int index, byte b)
-
setArg
public abstract void setArg(int index, short s)
-
setArg
public abstract void setArg(int index, int i)
-
setArg
public abstract void setArg(int index, long l)
-
setArg
public abstract void setArg(int index, float f)
-
setArg
public abstract void setArg(int index, double d)
-
setArg
public abstract void setArg(int index, Vector2f v)
-
setArg
public abstract void setArg(int index, Vector4f v)
-
setArg
public abstract void setArg(int index, Quaternion q)
-
setArg
public abstract void setArg(int index, Matrix4f mat)
-
setArg
public void setArg(int index, Matrix3f mat)
-
setArg
public abstract void setArg(int index, java.nio.ByteBuffer buffer, long size)
Raw version to set an argument.size
bytes of the provided byte buffer are copied to the kernel argument. The size in bytes must match exactly the argument size as defined in the kernel code. Use this method to send custom structures to the kernel- Parameters:
index
- the index of the argumentbuffer
- the raw buffersize
- the size in bytes
-
setArg
public void setArg(int index, java.lang.Object arg)
Sets the kernel argument at the specified index.
The argument must be a known type:LocalMemPerElement, LocalMem, Image, Buffer, byte, short, int, long, float, double, Vector2f, Vector4f, Quaternion, Matrix3f, Matrix4f
.
Note: Matrix3f and Matrix4f will be mapped to afloat16
(row major).- Parameters:
index
- the index of the argument, from 0 togetArgCount()
-1arg
- the argument- Throws:
java.lang.IllegalArgumentException
- if the argument type is not one of the listed ones
-
Run
public abstract Event Run(CommandQueue queue)
Launches the kernel with the current global work size, work group size and arguments. If the returned event object is not needed and would otherwise be released immediately,RunNoEvent(com.jme.opencl.CommandQueue)
might bring a better performance.- Parameters:
queue
- the command queue- Returns:
- an event object indicating when the kernel is finished
- See Also:
setGlobalWorkSize(com.jme.opencl.Kernel.WorkSize)
,setWorkGroupSize(com.jme.opencl.Kernel.WorkSize)
,setArg(int, java.lang.Object)
-
RunNoEvent
public void RunNoEvent(CommandQueue queue)
Launches the kernel with the current global work size, work group size and arguments without returning an event object. The generated event is directly released. Therefore, the performance is better, but there is no way to detect when the kernel execution has finished. For this purpose, useRun(com.jme.opencl.CommandQueue)
.- Parameters:
queue
- the command queue- See Also:
setGlobalWorkSize(com.jme.opencl.Kernel.WorkSize)
,setWorkGroupSize(com.jme.opencl.Kernel.WorkSize)
,setArg(int, java.lang.Object)
-
Run1
public Event Run1(CommandQueue queue, Kernel.WorkSize globalWorkSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel. The global work size is set to the specified size. The work group size is automatically determined by the driver. Each object in the argument array is sent to the kernel bysetArg(int, java.lang.Object)
.- Parameters:
queue
- the command queueglobalWorkSize
- the global work sizeargs
- the kernel arguments- Returns:
- an event object indicating when the kernel is finished
- See Also:
Run2(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
-
Run1NoEvent
public void Run1NoEvent(CommandQueue queue, Kernel.WorkSize globalWorkSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel. The global work size is set to the specified size. The work group size is automatically determined by the driver. Each object in the argument array is sent to the kernel bysetArg(int, java.lang.Object)
. The generated event is directly released. Therefore, the performance is better, but there is no way to detect when the kernel execution has finished. For this purpose, useRun1(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
.- Parameters:
queue
- the command queueglobalWorkSize
- the global work sizeargs
- the kernel arguments- See Also:
Run2(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
-
Run2
public Event Run2(CommandQueue queue, Kernel.WorkSize globalWorkSize, Kernel.WorkSize workGroupSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel.- Parameters:
queue
- the command queueglobalWorkSize
- the global work sizeworkGroupSize
- the work group sizeargs
- the kernel arguments- Returns:
- an event object indicating when the kernel is finished
-
Run2NoEvent
public void Run2NoEvent(CommandQueue queue, Kernel.WorkSize globalWorkSize, Kernel.WorkSize workGroupSize, java.lang.Object... args)
Sets the work sizes and arguments in one call and launches the kernel. The generated event is directly released. Therefore, the performance is better, but there is no way to detect when the kernel execution has finished. For this purpose, useRun2(com.jme.opencl.CommandQueue, com.jme.opencl.Kernel.WorkSize, com.jme.opencl.Kernel.WorkSize, java.lang.Object...)
.- Parameters:
queue
- the command queueglobalWorkSize
- the global work sizeworkGroupSize
- the work group sizeargs
- the kernel arguments
-
toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
-
-


Click the links on the left to load the project module here.HELP MASTER
To customize this example you need to modify two things. First, add your Behance API key to the first line of the behance.js file. Second, change the username to the username you want to load projects for. This is found in this file (simple.html) where it says var username = "adrian3".
If you want to see project thumbnail images on the right uncomment the line at the bottom of this file.
More info about the Behance API can be found at http://www.behance.net/dev.
If you found this template useful, send thanks to Adrian Hanft. Links of credit, tweets, and donations are appreciated.


Originally intended to publish hundreds of pages of cirriculum material for teachers only, City Technology’s website developed into an interactive, video-first instructional site with a secion specifially designed for kids.
I devised a simplified user input interface for adding text, video and image data. It allows for drag-and-drop arranging/re-arranging of elements once they have been added to the page.


PWCK
Section: System Management Commands (8)Updated: 07/24/2009
Index Return to Main Contents
NAME
pwck - verify integrity of password filesSYNOPSIS
-
pwck [-q] [-s] [passwd [ shadow ]]
- pwck [-q] [-r] [passwd [ shadow ]]
DESCRIPTION
Checks are made to verify that each entry has:
- * the correct number of fields
- * a unique and valid user name
- * a valid user and group identifier
- * a valid primary group
- * a valid home directory
- * a valid login shell
shadow checks are enabled when a second file parameter is specified or when /etc/shadow exists on the system.
These checks are the following:
- * every passwd entry has a matching shadow entry, and every shadow entry has a matching passwd entry
- * passwords are specified in the shadowed file
- * shadow entries have the correct number of fields
- * shadow entries are unique in shadow
- * the last password changes are not in the future
The checks for correct number of fields and unique user name are fatal. If the entry has the wrong number of fields, the user will be prompted to delete the entire line. If the user does not answer affirmatively, all further checks are bypassed. An entry with a duplicated user name is prompted for deletion, but the remaining checks will still be made. All other errors are warning and the user is encouraged to run the usermod command to correct the error.
The commands which operate on the /etc/passwd file are not able to alter corrupted or duplicated entries. pwck should be used in those circumstances to remove the offending entry.
OPTIONS
The options which apply to the pwck command are:
-q
- Report errors only. The warnings which do not require any action from the user won't be displayed.
-r
- Execute the pwck command in read-only mode.
-s
- Sort entries in /etc/passwd and /etc/shadow by UID.
By default, pwck operates on the files /etc/passwd and /etc/shadow. The user may select alternate files with the passwd and shadow parameters.
CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool:
PASS_MAX_DAYS (number)
- The maximum number of days a password may be used. If the password is older than this, a password change will be forced. If not specified, -1 will be assumed (which disables the restriction).
PASS_MIN_DAYS (number)
- The minimum number of days allowed between password changes. Any password changes attempted sooner than this will be rejected. If not specified, -1 will be assumed (which disables the restriction).
PASS_WARN_AGE (number)
- The number of days warning given before a password expires. A zero means warning is given only upon the day of expiration, a negative value means no warning is given. If not specified, no warning will be provided.
FILES
/etc/group
- Group account information.
/etc/passwd
- User account information.
/etc/shadow
- Secure user account information.
EXIT VALUES
The pwck command exits with the following values:
0
- success
1
- invalid command syntax
2
- one or more bad password entries
3
- can't open password files
4
- can't lock password files
5
- can't update password files
6
- can't sort password files
SEE ALSO
group(5), grpck(8), passwd(5), shadow(5), usermod(8).
Index
This document was created by man2html, using the manual pages.
Time: 05:34:29 GMT, December 24, 2015


Photo Gallery
Showcase of some features using Nivo Slider JS Plugin.
Features include:
- Auto-slide: The Banner image automatically changes every given timeframe.
- Animations: Various slider effects available including slide, slice, fade, fold, and so on.
- Thumbnail-view: You can see thumbnails of images and click on them to navigate to specific image.
- Mobile-friendly: Responsive to all devices, and simply swipe to slide the images.


CONSTANTS Class
This is a class (not actually but logically) that contains all definitions of constants. Those constants can be con- or disjoined (see functions 'and' and 'or') but already con- or disjoined can't be con- or disjoined any further (so nesting is not supported).
Item Index
Methods
- add static
- equals
- findNode
- findNodes
- get static
- greaterThan
- greaterThanOrEqualTo
- gt
- gte
- lessThan
- lessThanOrEqualTo
- lt
- lte
- new static
- new.byChildRef static
- new.byParentRef static
- release
- traverse
Methods
add
-
obj
-
val
This method adds a new (!!) key to a given constant's object dynamically. If the key already exists an error is thrown.
Parameters:
-
obj
Object -
val
Integer
Returns:
An array containing all keys of the according CONSTANTS object that are encoded in 'val'. The first index indicates if the keys are con- or disjoined (true means 'or', false means 'and')
equals
-
n
This method checks for mathmatical equality. This means new mathJS.Double(4.2).equals(4.2) is true.
Parameters:
-
n
Number
Returns:
findNode
-
nodeOrEqualsFunction
Find (first occurence of) a node
Parameters:
-
nodeOrEqualsFunction
Function | App.Tree
findNodes
-
nodeOrEqualsFunction
Find all occurences of a node.
Parameters:
-
nodeOrEqualsFunction
Function | App.Tree
get
-
obj
-
val
This method gets the keys of a constant's object from a given value.
Parameters:
-
obj
Object -
val
Integer
Returns:
An array containing all keys of the according CONSTANTS object that are encoded in 'val'. The first index indicates if the keys are con- or disjoined (true means 'or', false means 'and')
greaterThan
-
n
This method checks for mathmatical ">". This means new mathJS.Double(4.2).greaterThan(3.2) is true.
Parameters:
-
n
Number
Returns:
greaterThanOrEqualTo
-
n
This method checks for mathmatical ">=". This means new mathJS.Double(4.2).greaterThanOrEqualTo(3.2) is true.
Parameters:
-
n
Number
Returns:
gt
()
Alias for greaterThan
.
gte
()
Alias for greaterThanOrEqualTo
.
lessThan
-
n
This method checks for mathmatical "<". This means new mathJS.Double(4.2).lessThan(5.2) is true.
Parameters:
-
n
Number
Returns:
lessThanOrEqualTo
-
n
This method checks for mathmatical "<=". This means new mathJS.Double(4.2).lessThanOrEqualTo(5.2) is true.
Parameters:
-
n
Number
Returns:
lt
()
Alias for lessThan
.
lte
()
Alias for lessThanOrEqualTo
.
new
-
node
-
options
Parameters:
-
node
Object -
options
ObjectOptional. Any given key will override the default. Here are the keys: adjustLevels: Boolean value that indicates whether the tree is supposed to do its aftermath. Only set this to false if you're doing the aftermath later!! afterInstatiate: Function to modify the node and/or the instance. Parameters are (1st) the node object and (2nd) the instance. getChildren: Function that specifies how to retrieve the children from the node object. getParent: Function that specifies how to retrieve the parent from the node object. getChildren is checked 1st so it doesn't make sense to pass getChildren AND getParent! instantiate: Function that specifies how to create an instance from the node object. Parameter is the node object.
new.byChildRef
-
node
-
options
Parameters:
-
node
Object -
options
ObjectOptional. Any given key will override the default. Here are the keys: adjustLevels: Boolean value that indicates whether the tree is supposed to do its aftermath. Only set this to false if you're doing the aftermath later!! afterInstatiate: Function to modify the node and/or the instance. Parameters are (1st) the node object and (2nd) the instance. getChildren: Function that specifies how to retrieve the children from the node object. instantiate: Function that specifies how to create an instance from the node object. Parameter is the node object.
new.byParentRef
-
node
-
options
Parameters:
-
node
Object -
options
ObjectOptional. Any given key will override the default. Here are the keys: adjustLevels: Boolean value that indicates whether the tree is supposed to do its aftermath. Only set this to false if you're doing the aftermath later!! afterInstatiate: Function to modify the node and/or the instance. Parameters are (1st) the node object and (2nd) the instance. getParent: Function that specifies how to retrieve the parent from the node object. instantiate: Function that specifies how to create an instance from the node object. Parameter is the node object.
release
()
chainable
Releases the instance to the pool of its class.
Returns:
This intance
traverse
-
callback
-
orderMode
-
searchMode
Parameters:
-
callback
FunctionGets the current node, the current level relative to the root of the current traversal, and iteration index as parameters.
-
orderMode
StringOptional. Default is "postorder". Possible are "postorder", "preorder", "inorder", "levelorder".
-
searchMode
StringOptional. Default is "depthFirst". Posible are "depthFirst", "breadthFirst".


Simple Portal
Sign In
Sign Out
+ New Lab
Welcome!
Add
Name your lab
Lab Template
Username
Password
Finish
Back


The captions are automatically created using the alt
attribute of images and, if it doesn't exist, the title
attribute of links.
For example the following entry will have "I'm only in the alt" as caption.

The following entry haven't an alt
, but it has a title
. In this case the plugin will set "I'm only in the title" as caption.

In this last exampe, we have both the title
and the alt
. In this case the plugin takes the text from the alt
, and the caption will be "I'm in the alt".

The plugin creates the captions putting in each entry an extra div
element after the img
element, with the class caption
.
To have custom captions you need only to put this element, with the content that you want.

 I'm a custom caption!
I'm a div


vignettes/drhur-vignette.Rmd
drhur-vignette.Rmd
Learning a programming language such as R is tough. drhur
is a pedagogical software make the R learners’ life a little bit easier and more happily. The package includes (and is going to include more) tutorials of basic and advanced data science skills with R, such as data cleaning, analyzing, and visualization. The goal of the package is to provide an interactive platform for learners to enter the R world easily and efficiently.
The package is built upon the learnr
function which will open a shiny app for learners to interact with the instructions and tasks. The best way to learn these skills together with the “Learning R with Dr. Hu” online/offline workshops. One can get more information about the workshops through my website or contact me directly.
One can easily load the package and call the tutorials through the function drhur()
. For instance, one can initiate the visualization tutorial with the following commands:
if (!require(drhur)) install.packages("drhur")
library(drhur)
drhur("visualization")
The current available tutorials include：
| Function | Description | Usage |
|---|---|---|
| playing | Playing around with R: Intro to basic data structure in R; inputting, outputting, and creating data. |
drhur('playing')
|
| munging | Data munging: Generalizing (such as sorting and summarizing) and extracting (selecting or adjusting certain columns or rows) data frames. |
drhur('munging')
|
| analyzing | Data analyzing: Analyze data with descriptive and multivariate tools and diagnoses. |
drhur('analyzing')
|
| visualizing | Data presenting: Present descriptive and analytic results with ‘ggplot2’ |
drhur('visualizing')
|
drhur
aims to help R learners to get in touch with the most common applied skills of the programming language. We encourage users to consult the help files for more details.
The development of the package is ongoing. Please contact us with any questions, bug reports, and comments. Free to open an issue on GitHub if you have any question or a feature request.
Yue Hu
Department of Political Science,
Tsinghua Univeristy
Email<EMAIL_ADDRESS>Website<EMAIL_ADDRESS>Yuefei Sun
Department of Political Science,
Tsinghua University


Routeless Backbone Contacts 2.0
This post describes a revamped version 2.0 of my original Routeless Backbone Contacts application. The material covered here builds on the original post.
- The basic application functionality and the underlying data remains the same.
- The new user interface is a single two-pane page with a selectable list of contacts on the left and contact details on the right.
- A Search box has been added to incrementally filter the list of displayed contacts.
- The application is 100% event driven – there is no direct coupling between the views. Backbone.js events emitted by the underlying contact data collection ensure the views are updated automatically when the state of the underlying data changes.
Routeless Backbone.js Contacts is a totally client-side CRUD tutorial application written using CoffeeScript, Stylus, Backbone.js and jQuery which are a perfect match for writing concise, readable well structured web applications.
- The source is on Github:
- This release described in this post is at the 2.0 tag.
- A subsequent release includes Selenium tests and is at the 3.0. tag.
- The contacts data is persisted locally using browser Web Storage.
- Templates are written using Underscore.js templates (included with Backbone.js).
- Refer to the original Routeless Backbone Contacts 1.0 blog post for more information.
User Interface
The single page user interface combines four Backbone.js views. The views subscribe to, and are updated by, events emitted by the contacts collection (add, remove, change, reset, filter, select).
Models and Collections
ContactModel
The same model as version 1.0.
ContactsCollection
The ContactsCollection collection has been enhanced:
- The Filter class provides functions to filter the collection by contact name. When the filter criteria changes the collection broadcasts a custom filter event to subscribed views.
- The Cursor class provides a cursor object which represents the currently selected model in the contacts collection. The cursor listens for changes to the collection so that it can automatically ensure the cursor points to a valid contact in the filtered collection. When the cursor changes the contacts collection broadcasts a custom select event to subscribed views.
Views
RibbonView
StatusView
ListView
DetailView
Browser Compatibility
The markup generated by this tutorial is HTML5 with CSS3, no attempt has been made to accommodate legacy browsers.
- Was developed and tested on Google Chrome 14.
- Firefox 6 works fine.
- Requires IE9+ for correct CSS styling (though the header gradient doesn’t work in IE9).
- Requires iOS5+ for the names list to scroll.
Backbone.js Tips
The use of the fat arrow function definition operator in event handlers is significant. In the following example, when render is called this will be bound to the callee’s this context so the reference to @el will be correct:
@model.bind 'change', @render render: => @el.html @template
Don’t rely on the execution order of registered events.
The Model change event bubbles up through related collections.
It pays to monitor event handler execution during development. If a section of code triggers the execution of the same handler multiple times this may be symptomatic of a non-optimal design. For example, without the silent option the following code would trigger multiple collection remove events (the collection reset is sufficient to ensure listener notification):
contact.destroy {silent: true} for contact in @collection.toArray() @collection.reset()
On the other hand, it’s not unusual for event handlers to execute common code which can also result in execution redundancy (for example, the renderCursor handler is also called by the render handler in the ListView). In cases like this don’t sweat over eliminating the redundancy unless it impacts performance – code clarity is usually preferable to the convoluted and brittle optimisations generated by a “fix”.
When Backbone.js Models and Collections emit built-in events they pass associated event information to the event handler arguments. The catalog of Backbone.js events documents the event handler arguments. Currently undocumented is fact that options arguments passed to event triggering methods are passed through to the handlers as the trailing argument. In the following example an object containing a custom option myOption will be the third argument passed to the add event handlers “add”(model, collection, options):
myCollection.add myModel, {myOption: 'foobar'}
Don’t forget that Backbone.js event handlers are passed arguments (see previous item). For example, the Backbone.js Collection reset event passes the associated collection to the handler in the first argument which will cause the following code to fail:
@_collection.bind 'reset', @set set: (model=null) => :
If you assumed that the set handler would be called with no arguments you would expect model to be set to _null_ – in fact model is assigned _@collection. The code can be fixed by introducing an anonymous proxy handler that is bound to this and called without any arguments:
@_collection.bind 'reset', => @set()
set: (model=null) ->
:
Use the built-in event argument passing conventions if you have to trigger a built-in event programmatically. For example:
@collection.trigger 'reset', @collection


Lightning tragedies in Uganda over time
by AdminLightning struck Kyabagoma Muslim Primary School at Mwalo village in Bukomansimbi district killing 2 teachers and injuring 8 pupils
25.07.14 - 8 pupils of Buramba Primary School in Bushenyi municipality, Bushenyi district died when lightning struck as they were in class while 14 pupils and a teacher were injured. The dead included Danson Nuwamanya P.7, Aston Mukama P.7, Annita Nuwandinda P.6, Comfort Akampurira P.6, Junior Nuwahereza P.7, Grace Ainembabazi P.7, Hillary Tumusiime P.7 and Agnes Muheisenta P.7., and the injured were Bridget Nuwasiima, Udith Asimire, Sheila, Charity Amutuheire, Viola Kabagahi , Nampa Oliver, Anita Tukamuhebwa, Naturinda, Praise Nuwasiima, Edson Tumuramye, Rita Amutuheire, Sylivia and the teacher Nickson Nagaba.
05.07.13 - 7 students, Florence Murungi (S.2), Juliet Nanbunya (S.2) , Julian Baker Kabateremwa (S.3) , Sheila Kimuli (S.3), Gloria Katushabe (S.3), Brendah Nyakojo (S.1) and Helen Murungi of (S.1), all of Mandela Secondary School were struck by lightning during heavy rains in Hoima district while they were in class for evening preps. All of them survived.
07.03.13 – Lightning struck Kyabagoma Muslim Primary School at Mwalo village in Bukomansimbi district killing 2 teachers and injuring 8 pupils. The teachers were Karim Kisekka and Joseph Mukasa. All the children recovered.
05.11.12 – Lightning struck 10 P.7 candidates of Nakaseta Islamic Primary School in Mityana district during a morning drizzle, as they were preparing for their Primary Leaving Examinations. The children survived but 5 of them who were critically injured missed the examinations.
06.09.10 – Lightning killed 6 pupils in Apac and Alebtong districts on 04.09.10 & 05.09.10 respectively. 4 of them, Teddy Atino, 17, Jessica Akullu, 17, Monica Angom, 13, and Joe Ojok, 6 were pupils of Te-lela Primary School while the two, Felix Oluma, 11, and Simpo Akao, 9, were of Oburu Primary School.
Facts about Lightning.
The air masses (cumulus and cumulo- nimbus clouds) moving in opposite directions cause heat. The warm air expands and in the process due to the increase in the volume it occupies more space and encounters cold air. It finally contracts which causes thunder.
The sudden expansion of air causes an explosion called thunder. When the sound waves are being transmitted, they encounter cold air and generate an electric discharge which moves towards the earth.
Lightning connects to earth through high points like trees, buildings, human beings and animals. Areas around the lakes are the high risk areas.
Lightning strikes are common at the beginning of the rainy season because there is a lot of energy built-up in the air. Lightning which is increasingly claiming lives is attributed to the massive deforestation which has hindered the absorption or providing channel for transmitting lightning.
What you should and not do during a lightning storm.
- Install lightning conductors on buildings because lightning strikes through the highest points.
* Avoid taking shelter under a tree because they are immediate conductors
* Lie down if you are in an open place like a football play ground
* If in a car during a storm, avoid touching the ignition key, the car is insulated by the tryes, but the driver can complete the circuit and become affected
* Avoid collecting water in metallic containers when it is raining.
* Avoid answering telephone calls when it is raining even while indoors.
* Do not touch plumbing installations such as metallic water pipes. -


| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
alias |
"name_alias" |
public static final java.lang.String |
clientCreateTable |
"CREATE TABLE client (name VARCHAR(30), groupUID VARCHAR(30), role INT)" |
public static final java.lang.String |
clientGetWithRole |
"SELECT * FROM client WHERE role = ? AND groupUID = ?" |
public static final java.lang.String |
clientGUID |
"groupUID" |
public static final java.lang.String |
clientInsert |
"INSERT INTO client VALUES (?,?,?,?)" |
public static final java.lang.String |
clientName |
"name" |
public static final java.lang.String |
clientRole |
"role" |
public static final java.lang.String |
clientRoleUpdate |
"UPDATE client SET role = ? WHERE name = ? AND groupUID = ?" |
public static final java.lang.String |
clientSelectWhere |
"SELECT * FROM client WHERE name = ? AND groupUID = ?" |
public static final java.lang.String |
clientTable |
"client" |
public static final java.lang.String |
dropClient |
"DROP TABLE client" |
public static final java.lang.String |
updateAliasQuery |
"UPDATE client SET name_alias = ? WHERE name = ? AND groupUID = ?" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"demote" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"promote" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"register" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"add-feature" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"GroupConfig" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"remove-feature" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"role" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"showallfeatures" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"help" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"help-command" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"Help" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
name |
"help-feature" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
dropGroupTable |
"DROP TABLE chat_group" |
public static final java.lang.String |
groupCreateTable |
"CREATE TABLE chat_group (groupuid VARCHAR(30) PRIMARY KEY, myfeatures TEXT)" |
public static final java.lang.String |
groupDelete |
"DELETE FROM chat_group WHERE groupuid= ?" |
public static final java.lang.String |
groupFeatureUpdate |
"UPDATE chat_group SET myfeatures = ? WHERE groupuid = ?" |
public static final java.lang.String |
groupInsert |
"INSERT INTO chat_group VALUES (?,?)" |
public static final java.lang.String |
groupMyFeature |
"myfeatures" |
public static final java.lang.String |
groupSelectAll |
"SELECT * FROM chat_group" |
public static final java.lang.String |
groupTable |
"chat_group" |
public static final java.lang.String |
groupUID |
"groupuid" |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
accountsDescription |
"Register, Promote, Demote, Account Management for the group." |
public static final java.lang.String |
addFeatureDescription |
"Add feature to the group." |
public static final java.lang.String |
demoteDescription |
"Demote group member" |
public static final java.lang.String |
groupConfigDescription |
"Configure group settings for the bot." |
public static final java.lang.String |
helpCommandCommandDescription |
"Shows description, usage and example of a command." |
public static final java.lang.String |
helpCommandDescription |
"Shows available features in the group." |
public static final java.lang.String |
helpDescription |
"Gives description of the commands that can be used and how to use it." |
public static final java.lang.String |
helpFeatureDescription |
"Shows commands in the feature." |
public static final java.lang.String |
promoteDescription |
"Promote group member" |
public static final java.lang.String |
registerDescription |
"Register group member for the group" |
public static final java.lang.String |
removeFeatureDescription |
"Remove feature from the group" |
public static final java.lang.String |
roleDescription |
"Shows role of target member." |
public static final java.lang.String |
showAvailDescription |
"Shows available features you can add to the group." |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
allReadyRegistered |
"You have already been register." |
public static final java.lang.String |
cantDemoteAdmin |
"Can\'t demote Admin" |
public static final java.lang.String |
cantDemoteMember |
"Member is the least role, can\'t demote further." |
public static final java.lang.String |
commandDoesntExists |
"Command doesnt exists" |
public static final java.lang.String |
commandNotAllowedInThisGroup |
"Command not allowed in this group, request the admin to add it!!!" |
public static final java.lang.String |
dbListSeperator |
"," |
public static final java.lang.String |
dontDemoteYourself |
"Why do you want to demote yourself?" |
public static final java.lang.String |
dontPromoteYourself |
"Don\'t try to promote yourself" |
public static final java.lang.String |
featureAlreadyAdded |
"Requested feature is already added in the group." |
public static final java.lang.String |
featureDoesntExisits |
"Requested feature Does\'nt exists." |
public static final java.lang.String |
featureHasNotBeenAdded |
"Requested feature has not been added to the group yet or has already been removed." |
public static final java.lang.String |
helpCommandResponse |
"%s\n%s\nUsage:\n%s\nExample:\n%s\nMinimum Role:\n%s" |
public static final java.lang.String |
helpFeatureResponse |
"%s\n%s\nCommands:\n%s" |
public static final java.lang.String |
inSufficiantPermission |
"You don\'t have Sufficiant Permission." |
public static final java.lang.String |
roleResponse |
"Role of %s is %s." |
public static final java.lang.String |
succesffullyAddedFeature |
"Feature %s has been successfully added to the group." |
public static final java.lang.String |
successfullyChangedRole |
"Successfully changed role of %s from %s to %s." |
public static final java.lang.String |
successfullyRegisteredFormat |
"Successfully Registered %s." |
public static final java.lang.String |
successfullyRemovedFeature |
"Feature %s has been successfully removed from the group." |
public static final java.lang.String |
targetClientIsNotRegistered |
"Target client is not registered yet." |
public static final java.lang.String |
thereCanBeOnlyOneAdminInAGroup |
"There can only be on admin in a group." |
public static final java.lang.String |
thereIsNoRoleAboveAdmin |
"There is no role above admin." |
public static final java.lang.String |
youDontHaveAuthorityToDemote |
"You don\'t have autority to demote this member." |
public static final java.lang.String |
youDontHaveAuthorityToPromote |
"You don\'t have autority to promote this member." |
| Modifier and Type | Constant Field | Value |
|---|---|---|
public static final java.lang.String |
autoStartReady |
"//h1[contains(@class,\'iHhHL\')]" |
public static final java.lang.String |
bubbleToAuthorName |
".//span[@class=\'_2a1Yw _1OmDL\']" |
public static final java.lang.String |
bubbleToText |
".//span[contains(@class,\'copyable-text\')]" |
public static final java.lang.String |
bubbleToTime |
".//span[@class=\'_3EFt_\']" |
public static final java.lang.String |
ClipIcon |
"//span[@data-icon=\"clip\"]" |
public static final java.lang.String |
getClientReferenceFromBubble |
".//span[contains(@class,\"matched-mention\")]" |
public static final java.lang.String |
ImageBubbles |
"//div[@class=\"_3v3PK\"]/..//*[contains(text(), \"%s\")]/../../.." |
public static final java.lang.String |
ImageDownloadIcon |
"//span[@data-icon=\"download\"]" |
public static final java.lang.String |
ImageFromImageBubble |
".//img" |
public static final java.lang.String |
ImageShareIcon |
<EMAIL_ADDRESS>|
public static final java.lang.String |
inMessageBubbles |
"//div[contains(@class,\'message-in\')]//div[@class=\'Tkt2p\']" |
public static final java.lang.String |
inputBody |
"//div[@class=\'_2bXVy\']" |
public static final java.lang.String |
newChatBubbles |
"//div[@class=\'_1mq8g\']//following-sibling::div//div[@class=\'Tkt2p\']" |
public static final java.lang.String |
newChatGroup |
"//div[not(contains(@class,\'_1f1zm\')) and contains(@class,\'_2EXPL\')]//div[contains(@class,\'_15G96\')]/../../../../../../div[not(contains(@class,\'active\'))]//div[@class=\'_25Ooe\']" |
public static final java.lang.String |
oldChatBubbles |
"//div[@class=\'_1mq8g\']//preceding-sibling::div//div[@class=\'Tkt2p\']" |
public static final java.lang.String |
referenceAttribute |
"data-jid" |
public static final java.lang.String |
sendButton |
"//span[contains(@data-icon,\'send\')]" |
public static final java.lang.String |
ShareCaptionTextInput |
"//div[contains(@class,\"CzI8E\")]//div[contains(@class,\"_2S1VP\")]" |
public static final java.lang.String |
ShareSendIcon |
"//span[@data-icon=\"send-light\"]" |


This text should be highlit in blue
This text has [inner] square braces
This text has (inner) parentheses
This text has both (inner parentheses) [inner braces]
This text has both [inner braces] (inner parentheses)


--- layout: archive title: Zulip Chat Archive permalink: /stream/116395-maths/topic/nonempty.20sets.html ---
Hello, I see at least three ways to say that s : set α
is not empty: nonempty s
, s ≠ ∅
, ∃ x, x ∈ s
. Are there any "official" preferences?
context?
E.g., I see s ≠ ∅
in conditionally_complete_lattice
and ∃ x, x ∈ s
in data/real/basic
. They're used in similar contexts: exists_sup
in real/basic
is very similar to le_cSup
and cSup_le
.
I might use {x} (hx : x \in s)
This is one more way to write the same thing. Do I understand correctly that there is no "officially" preferred way to write this?
I don't know
These are important questions in some contexts I guess
@Kevin Buzzard It's not convenient to have several different ways to write down the same fact used in two related files. You have to convert from one to another.
{% endraw %}Last updated: Apr 24 2020 at 19:02 UTC


Enter a numbers separated with "," with no whitespace between...
Note that array must be sorted, or it will be sorted implicitly
The array:
The number to search:
Binary search


{% extends "delete_obj.html" %} {% block del_title %} Are you sure you want to delete this stock item? {% endblock %} {% block del_body %} This will remove {{ item.quantity }} units of '{{ item.part.name }}' from stock. {% endblock %}


Here is some more information about this product that is only revealed once clicked on.
Here is some more information about this product that is only revealed once clicked on.
Here is some more information about this product that is only revealed once clicked on.
We did most of the heavy lifting for you to provide a default stylings that incorporate our custom components. Additionally, we refined animations and transitions to provide a smoother experience for developers.
By utilizing elements and principles of Material Design, we were able to create a framework that incorporates components and animations that provide more feedback to users. Additionally, a single underlying responsive system across all platforms allow for a more unified user experience.
We have provided detailed documentation as well as specific code examples to help new users get started. We are also always open to feedback and can answer any questions a user may have about Materialize.
I am a very simple card. I am good at containing small bits of information. I am convenient because I require little markup to use effectively.
I am a very simple card. I am good at containing small bits of information. I am convenient because I require little markup to use effectively.
I am a very simple card. I am good at containing small bits of information. I am convenient because I require little markup to use effectively.
I am a very simple card. I am good at containing small bits of information. I am convenient because I require little markup to use effectively.
Collins Street West Victoria 8007 Australia
+880 1234 567890<EMAIL_ADDRESS>www.website.net


Promotion
Delete
Promotion Deleted Sucessfully
{{errorText}}
- Title English
- {{Singlepromotion.Title_EN}}
- Title عربي
- {{Singlepromotion.Title_AR}}
- Status
- {{Singlepromotion.Status}}
- Created On
- {{Singlepromotion.CreatedOn}}
- Expires On
- {{Singlepromotion.ExpiresOn}}
Promotion Criteria Definition
- Trigger
- {{Singlepromotion.Trigger}}
- Coupon Source
- {{Singlepromotion.CouponSource}}


{% include 'articles/blocks/featured_articles.html' %}
{% include 'pages/blocks/static_contents.html' %}
{% include 'events/blocks/upcoming_events.html' %}
{% trans "Latest Articles" %}
{% for article in articles %}
{% if article.content_type.model == 'organizationpage' %}
{% include "organizations/blocks/latest_organization.html" with page=article list_item_classes='l-grid-item l-grid-item-fixed-height' %}
{% elif article.content_type.model == 'newsarticlepage' %}
{% include "articles/blocks/latest_news_article.html" with page=article %}
{% elif article.content_type.model == 'storyarticlepage' %}
{% include "articles/blocks/latest_story_article.html" with page=article list_item_classes='l-grid-item-double-width' %}
{% elif article.content_type.model == 'theoryarticlepage' %}
{% include "articles/blocks/latest_theory_article.html" with page=article %}
{% endif %}
{% empty %}


Sets a service's discretionary access control list (i.e. DACL).
Set-ServiceAcl [-Name] <String> [-Dacl] <DiscretionaryAcl> [-WhatIf] [-Confirm] [<CommonParameters>]
The existing DACL is replaced with the new DACL. No previous permissions are preserved. That's your job. You're warned!
You probably want Grant-ServicePermission
or Revoke-ServicePermission
instead.
| Name | Type | Description | Required? | Pipeline Input | Default Value |
|---|---|---|---|---|---|
| Name | String | The service whose DACL to replace. |
true | false | |
| Dacl | DiscretionaryAcl | The service's new DACL. |
true | false | |
| WhatIf | SwitchParameter | false | false | ||
| Confirm | SwitchParameter | false | false | ||
| CommonParameters | This cmdlet supports common parameters. For more information type Get-Help about_CommonParameters . |
Set-ServiceDacl -Name 'Hyperdrive' -Dacl $dacl
Replaces the DACL on the Hyperdrive
service. Yikes! Sounds like something the Empire would do, though.


October 22When Tough Times Come
Then had the churches rest throughout all Judaea and Galilee and Samaria, and were edified; and walking in the fear of the Lord, and in the comfort of the Holy Ghost, were multiplied.Acts 9:31
There are times when life on this earth is hard and uncomfortable...and even downright painful. When those times come, you deeply need the comfort that only the Holy Spirit can bring. How do you receive that kind of comfort? By doing just what the believers in Acts did. By "walking in the fear of the Lord."
Now, when I talk about "the fear of the Lord," please understand, I'm not saying you should be afraid of God. He's your Father! You should be as secure and unafraid when you come before Him as a child who knows he is dearly loved. But you must also have so much respect for Him that whenever He reveals something you need to do, you do it immediately-- even if it goes against your natural desires. That's walking in the fear of the Lord.
Let me show you what I mean. Once, several years ago, I received a very disturbing phone call shortly before I was to preach at one of our meetings. It was painful news about a situation in which one of my children had been wronged. The news of it wounded my heart. I cried, and in the natural, I wanted to get angry about it, to strike back in some way. But instead, I began praying in other tongues. As I prayed, I was prompted in my spirit to rejoice and praise the Lord.
I certainly didn't feel like praising. I felt like stomping my foot. But, out of respect to the Lord, I put my feelings aside and obeyed. Next, the Holy Spirit impressed me to read a particular prophecy. As I did, I could tell I was being strengthened. Then suddenly, I realized I was free. By my obedience, I had opened myself to the comforting power of the Holy Spirit. The anger and pain that had filled me just moments before were gone! They had been replaced by the gentle love and reassurance of the Lord.
No matter how tough or painful a situation you may be facing today, trust and obey the directions of your Father.
Scripture Reading: Matthew 4:1-11


We check the forecasts to help you make informed decisions about long-term trips.
We help you exchange your money for the Euro without any commissions.
Getting help to apply for a visa is simple, we provide free consultations.
Travel agency 'Around the world' started in year 2010 with modest but sure steps, with a clear vision and only one purpose - satisfied clients, as the only way to grow in what we are today.
Today, after 15 years of hard work, we are recognized as respectable company in the country and the region with head office in the capital - Skopje and branch office in the largest center for tourism - the city of Ohrid.
Our flexibility is what sets us apart. From the simplest of trips to the most complicated itineraries, we ensure that your business trip is organised to the finest level of detail and that you get to concentrate on what's important - your business. World-class travel arrangements teamed with our competitive rates, wrapped in our personalised service
Our goal is to provide you with travel memories that will enrich your life. Remember how you gasped with wonder at the Pyramids in Egypt, the feeling of pure joy as you watched a herd of elephants bathe a newborn calf or the adrenaline rush you felt as you gazed at the valley below after your hike to the top of Machu Picchu? The world is out there and is yours to discover. Let us help you find your memories while minimizing your footprint on our precious planet!
Founder od the Agency
Accounting
Marketing Manager


Login to MongoDB Stitch
Before you enter the email / password informations in the following form, please make sure that you have changed the app ID in the appID.json file.
You can find the app ID online on stitch.mongodb.com -> Stitch -> Your Application. Now you can copy the app ID in the top left corner.
Enter the required email / password login informations down below.
${consoleOutput0}
${consoleError}


This page tracks the new paper links made to my list of EGSR 2009 papers.
Page maintained by Ke-Sen Huang.
If you have additions or changes, send an e-mail.
March 30, 2011
March 28, 2011
August 16 2009
July 23, 2009
July 19, 2009
July 7, 2009
July 6, 2009
June 25, 2009
June 18, 2009
June 14, 2009
June 5, 2009
June 3, 2009
kesen.huang@gmail.com


A graybody that absorbs only a proportion of incident radiation also emits a proportion of the blackbody radiation. For our models we assume the proportion absorbed is the same as the proportion emitted. This absorption/emission propotion is exactly the emissivity of the object. So, for a graybody at temperature, \(T\text{,}\) with emissivity \(\epsilon\) the total energy, \(J\text{,}\) emitted per unit area per unit time is \(J =\epsilon\sigma T^4 j/sm^2 \text{.}\)
in-context


PODCAST: IDOLS SA winner Luyolo Yiba chats to the Algoa Fm Breakfast team
by Algoa FMIDOLS SA 2019 was filled with fantastic performances, high emotions and of course, one winner.
On Sunday Eastern Cape's Luyolo Yiba was crowned as 'Idols SA" season 15 winner.


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| Packages that use SimTuple | |
|---|---|
| edu.mit.csail.sdg.alloy4compiler.sim | This package contains a pure-Java evaluator/simulator for Alloy4 instances. |
| Uses of SimTuple in edu.mit.csail.sdg.alloy4compiler.sim |
|---|
| Methods in edu.mit.csail.sdg.alloy4compiler.sim that return SimTuple | |
|---|---|
SimTuple |
SimTuple.append(SimAtom atom)
Append the given atom to the back of this tuple, then return the resulting new Tuple. |
SimTuple |
SimTupleset.getTuple()
Returns an arbitrary tuple. |
SimTuple |
SimTuple.head(int n)
Returns the subtuple containing the first n atoms (n must be between 1 and arity) |
SimTuple |
SimTuple.join(SimTuple that)
Return the relational join of this tuple and that tuple; throws an exception if the join point doesn't match or if both sides are unary. |
static SimTuple |
SimTuple.make(java.util.List<SimAtom> list)
Construct the n-ary tuple; throws an exception if the given list is empty. |
static SimTuple |
SimTuple.make(SimAtom atom)
Construct the unary tuple containing the given atom. |
static SimTuple |
SimTuple.make(SimAtom a,
SimAtom b)
Construct the binary tuple (a,b) |
static SimTuple |
SimTuple.make(java.lang.String atom)
Construct the unary tuple containing the given atom. |
static SimTuple |
SimTuple.make(java.lang.String[] atoms)
Construct the tuple containing the given list of atoms; the list must not be empty. |
SimTuple |
SimTuple.prepend(SimAtom atom)
Prepend the given atom to the front of this tuple, then return the resulting new Tuple. |
SimTuple |
SimAtom.product(SimAtom that)
Return the product of this atom and that atom. |
SimTuple |
SimTuple.product(SimTuple that)
Return the product of this tuple and that tuple. |
SimTuple |
SimTuple.replace(int i,
SimAtom newAtom)
Replace the i-th atom, and return the resulting SimTuple. |
SimTuple |
SimTuple.replace(java.util.Map<SimAtom,SimAtom> map)
Replace each atom using the given SimAtom->SimAtom map; any atom not in the map will stay unchanged. |
SimTuple |
SimTuple.tail(int n)
Returns the subtuple containing the last n atoms (n must be between 1 and arity) |
| Methods in edu.mit.csail.sdg.alloy4compiler.sim that return types with arguments of type SimTuple | |
|---|---|
java.util.Iterator<SimTuple> |
SimTupleset.iterator()
Returns a read-only iterator over the tuples. |
| Methods in edu.mit.csail.sdg.alloy4compiler.sim with parameters of type SimTuple | |
|---|---|
SimTupleset |
SimTupleset.beginWith(SimTuple x)
Return the set of tuples which begins with the given tuple (where we remove the "matching leading part") |
SimTupleset |
SimTupleset.difference(SimTuple that)
Return this minus that; (if this tupleset and that tuple does not have compatible arity, then we return this tupleset as is). |
SimTupleset |
SimTupleset.endWith(SimTuple x)
Return the set of tuples which ends with the given tuple (where we remove the "matching trailing part") |
boolean |
SimTupleset.has(SimTuple that)
Returns true if this tupleset contains the given tuple. |
boolean |
SimInstance.isIn(SimTuple a,
Expr b)
Helper method that evaluates the formula "a in b" where b.mult==0 |
SimTuple |
SimTuple.join(SimTuple that)
Return the relational join of this tuple and that tuple; throws an exception if the join point doesn't match or if both sides are unary. |
static SimTupleset |
SimTupleset.make(SimTuple tuple)
Construct a tupleset containing the given tuple. |
SimTupleset |
SimTupleset.override(SimTuple that)
Return the relational override of this and that; (if this tupleset and that tuple does not have compatible arity, then we return this tupleset as is). |
SimTuple |
SimTuple.product(SimTuple that)
Return the product of this tuple and that tuple. |
SimTupleset |
SimTupleset.union(SimTuple that)
Return the union of this and that; (if this tupleset and that tuple does not have compatible arity, then we return this tupleset as is). |
| Method parameters in edu.mit.csail.sdg.alloy4compiler.sim with type arguments of type SimTuple | |
|---|---|
static SimTupleset |
SimTupleset.make(java.util.Collection<SimTuple> tuples)
Make a tupleset containing a deep copy of the given list of tuples (Note: caller MUST make sure there are no duplicates, and all tuples are of same arity!) |
|
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Continuous Mathematics: 2016-2017
|
Lecturer |
|
|
Degrees |
|
|
Term |
Hilary Term 2017 (16 lectures) |
Overview
Many areas of mathematics, and applications of mathematics in the applied sciences, are underpinned by the concepts of calculus, i.e. differentiation and integration.The first aim of this course is to provide an introduction to calculus in several variables that will form a basis for later courses. This theory will be demonstrated using examples drawn from maximising or minimising functions of one or more variables (with or without constraints), the solution of ordinary differential equations, and the solution of simple partial differential equations (including the reduction of partial differential equations to ordinary differential equations via a change of variables in special cases).
The second aim of the course is to introduce some computational techniques in calculus, for example numerical integration, the numerical solution of differential equations, and finding the solution of nonlinear equations in one or more variables. These techniques lend themselves to practical implementation, allowing demonstration of the theory developed during the course.
Learning outcomes
This is an introductory course in calculus. Students will learn:1. how to differentiate a function of one or more variables using, for example, the chain rule, the product rule, and change of variables;
2. Taylor's theorem of one or more variables;
3. finding maxima and minima of functions of one or more variables either with or without constraints;
4. integration by parts;
5. simple methods for the solution of ordinary differential equations;
6. methods for numerical quadrature;
7. Fourier series representation of functions;
8. simple numerical methods for the numerical solution of ordinary differential equations;
9. simple methods for the solution of partial differential equations;
10. iterative methods for finding the solution of nonlinear algebraic equations.
Prerequisites
None
Synopsis
Lecture 1. Functions of several variables. Partial differentiation. The chain rule and the product rule.
Lectures 2-3. Taylor's theorem for a function of one variable and the connection with extrema. Taylor's theorem for a function of several variables. Maxima, minima and saddle points of functions of several variables.
Lectures 4-6. Solution of nonlinear equations in one dimension and higher dimensions using Newton's method. The connection with optimisation of functions. Lagrange multipliers for constrained optimisation.
Lecture 7. Integration of a function of one variable, integration by substitution, integration by parts. Calculation of the area under a curve by integration. Simple methods for numerical integration: the trapezium rule and Simpson's rule.
Lectures 8-9. Fourier series representation of periodic functions.
Lectures 10-13. Ordinary differential equations. Initial value problems, boundary value problems. Solution of separable first order equations and constant coefficient second order problems. Simple numerical methods for first order equations. Solution of second order difference equations and their application to numerical methods for second order boundary value problems.
Lectures 14-16. Simple partial differential equations. Separable solutions to the heat equation in one dimension. Reduction of partial differential equations to ordinary differential equations by change of variables.
Syllabus
Differentiation of functions of one or more variables: change of variables; the chain rule; and the product rule. Taylor's theorem of one or more variables (proof not required). Maxima, minima, saddle points of one or more variables. Integration of a function of one variable. Numerical integration: the trapezium rule and Simpson's rule (proof of error of Simpson's rule not required). Fourier series representation of functions. Ordinary differential equations: initial value problems; boundary value problems; separable solutions; solution of second order boundary value problems with constant coefficients. The forward and backward Euler methods for the numerical solution of initial value ordinary differential equations. Numerical solution of the finite difference equations arising from second order boundary value problems. Newton's method for the iterative solution of nonlinear equations in one and many dimensions. Lagrange multipliers for constrained optimisation.
Reading list
The principal text for this course is
- D.S. Sivia and S.G. Rawlings: Foundations of Science Mathematics, Oxford Chemistry Primers
Additional texts are:
- Erwin Kreyszig: Advanced Engineering Mathematics. John Wiley & Sons.
- Dominic Jordan and Peter Smith: Mathematical Techniques. Oxford University Press.


Class WebEntity (v2.2.2)
Entity deduced from similar images on the Internet.
Generated from protobuf message google.cloud.vision.v1.WebDetection.WebEntity
Methods
__construct
Constructor.
| Name | Description |
| data |
array
Optional. Data for populating the Message object. |
| ↳ entity_id |
string
Opaque entity ID. |
| ↳ score |
float
Overall relevancy score for the entity. Not normalized and not comparable across different image queries. |
| ↳ description |
string
Canonical description of the entity, in English. |
getEntityId
Opaque entity ID.
Generated from protobuf field string entity_id = 1;
| Type | Description |
| string |
setEntityId
Opaque entity ID.
Generated from protobuf field string entity_id = 1;
| Name | Description |
| var |
string
|
| Type | Description |
| $this |
getScore
Overall relevancy score for the entity.
Not normalized and not comparable across different image queries.
Generated from protobuf field float score = 2;
| Type | Description |
| float |
setScore
Overall relevancy score for the entity.
Not normalized and not comparable across different image queries.
Generated from protobuf field float score = 2;
| Name | Description |
| var |
float
|
| Type | Description |
| $this |
getDescription
Canonical description of the entity, in English.
Generated from protobuf field string description = 3;
| Type | Description |
| string |
setDescription
Canonical description of the entity, in English.
Generated from protobuf field string description = 3;
| Name | Description |
| var |
string
|
| Type | Description |
| $this |


**Make sure you're on the 'Track' tab**
Type your tag in the box provided above, and then set repeat and alerts, or bookmark.
See
Advanced Tracking for more information about how to make repeat, alert and bookmark tags,
as well as setting a repeat frequency, and an end date.


---
layout: page
weight: 0
title: Monitor Records
navigation:
show: true
---
Receive a sample of an outgoing message by a specific subuser.
The first step is to create a Monitor Record. Once the monitor record has been created, a reseller can append a monitor record to a subuser. Multiple subuser can be appended to a single monitor record.
{% anchor h2 %}
Create Monitor Record
{% endanchor %}
Obtain a complete list of all subuser.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to create
|
Create a monitor record |
| name |
Yes |
Name must be unique. Can't be more than 255 characters |
The unique name to identify this monitor record |
| email |
Yes |
Must be in email format |
The email destination to send the email sample to |
| frequency |
Yes |
Subuser must be registered under your account |
The frequency of emails to be sent out |
{% apiexample create POST https://api.sendgrid.com/apiv2/customer.monitor<EMAIL_ADDRESS>%}
{% response json %}
{
"message": "success"
}
//error
{
"message": "error",
"errors": [
"...error messages..."
]
}
{% endresponse %}
{% response xml %}
success
error
...
... error messages ...
...
{% endresponse %}
{% endapiexample %}
{% anchor h2 %}
Edit Monitor Record
{% endanchor %}
Make modifications to an existing Monitor record.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to edit
|
The task required to edit a monitor |
| name |
Yes |
The name of the previous monitor record |
The monitor record we are going to edit |
| new_name |
No |
New name must be unique and can't be more than 255 characters |
The new monitor record name |
| new_email |
No |
Must be in email format |
The new email destination to send the email sample to |
| new_frequency |
No |
Must be an integer and greater than 0 |
The new frequency of emails to be sent out |
{% apiexample edit POST https://api.sendgrid.com/apiv2/customer.monitor<EMAIL_ADDRESS>%}
{% response json %}
{
"message": "success"
}
//error
{
"message": "error",
"errors": [
"...error messages..."
]
}
{% endresponse %}
{% response xml %}
success
error
...
... error messages ...
...
{% endresponse %}
{% endapiexample %}
{% anchor h2 %}
Delete Monitor Record
{% endanchor %}
Deleting a monitor record will remove it from SendGrid's system. Make sure no users are currently using the monitor record when removing, or removal will fail.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to delete
|
The task required to remove a monitor |
| name |
Yes |
Must be a monitor record to remove |
The unique name to identify this monitor record |
{% apiexample delete POST https://api.sendgrid.com/apiv2/customer.monitor api_user=your_sendgrid_username&api_key=your_sendgrid_password&task=delete&name=recordToDelete %}
{% response json %}
{
"message": "success"
}
//error
{
"message": "error",
"errors": [
"...error messages..."
]
}
{% endresponse %}
{% response xml %}
success
error
...
... error messages ...
...
{% endresponse %}
{% endapiexample %}
{% anchor h2 %}
List All Monitor Records
{% endanchor %}
List all available monitor records a reseller has.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to list
|
The task required to list all monitor records |
{% apiexample listrecords POST https://api.sendgrid.com/apiv2/customer.monitor api_user=your_sendgrid_username&api_key=your_sendgrid_password&task=list %}
{% response json %}
[
{
"name": "sampleNameA",
"email"<EMAIL_ADDRESS>"frequency": "1000",
"users": [
]
},
{
"name": "sampleNameB",
"email"<EMAIL_ADDRESS>"frequency": "10000",
"users": [
<EMAIL_ADDRESS><EMAIL_ADDRESS>]
}
]
{% endresponse %}
{% response xml %}
sampleNameA
<EMAIL_ADDRESS>1000
sampleNameB
<EMAIL_ADDRESS>10000
<EMAIL_ADDRESS><EMAIL_ADDRESS>{% endresponse %}
{% endapiexample %}
{% anchor h2 %}
Append A Subuser To A Monitor Record
{% endanchor %}
Append a monitor record to a existing record onto a subuser.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to append
|
The task required to append a monitor record to a subuser |
| user |
Yes |
Subuser must be registered under your account |
The user we will append a monitor record to |
| name |
No |
Must be a valid monitor record |
The name of the monitor record we will be appending |
{% apiexample append POST https://api.sendgrid.com/apiv2/customer.monitor<EMAIL_ADDRESS>%}
{% response json %}
{
"message": "success"
}
//error
{
"message": "error",
"errors": [
"...error messages..."
]
}
{% endresponse %}
{% response xml %}
success
error
...
... error messages ...
...
{% endresponse %}
{% endapiexample %}
{% anchor h2 %}
Detach A Monitor Record From A Subuser
{% endanchor %}
Detach a subuser from a monitor record.
| Parameter |
Required |
Requirements |
Description |
| task |
Yes |
Must be set to detach
|
The task required to detach a monitor record to a subuser |
| user |
Yes |
Subuser must be registered under your account |
The subuser we will detach the monitor record from |
{% apiexample detach POST https://api.sendgrid.com/apiv2/customer.monitor<EMAIL_ADDRESS>%}
{% response json %}
{
"message": "success"
}
//error
{
"message": "error",
"errors": [
"...error messages..."
]
}
{% endresponse %}
{% response xml %}
success
error
...
... error messages ...
...
{% endresponse %}
{% endapiexample %}


The Lloyd Neck Bath Club
September 23rd, 2017
5pm
Best Western
Woodbury, NY
more infoThere are 10 rooms on hold for the nights of the 22nd and 23rd. 10 additional rooms are set aside for the night of the 23rd. You can book online through the link below or call and mention the de Guzman Bott wedding party.
If you have any questions let us know!


Cleaning up the loose ends
Many loose-end projects are marked by comments containing "XXX".
Any of those you'd like to tackle are fair game.
Some other things that would be nice:
- Use const more consistently throughout the code.
- Use string in preference to char* where possible.
- Add the concept of test categories, assign each test to one or
more of them, and add a way to run all the tests in a given
category.
- Push the Test class hierarchy down one more level of detail.
(I actually did this, factoring out everything that's common to
classes like BasicTest, but it turned out to be more awkward to
use than just cutting and pasting code, so I backed out the changes.
After a few more tests are written, it should be more clear how to do
this correctly.)
- Automated checks for memory leaks.
- GLX 1.3 support.


Blast in Bengaluru Forensic Science Laboratory injures 6
The injured have been admitted to St. John’s Hospital.
by Special CorrespondentSix persons who were engaged in chemical analysis at the Forensic Science Laboratory at Madiwala in Bengaluru suffered multiple injuries in an explosion on Friday afternoon. The injured have been admitted to St. John’s Hospital.
“The six persons were carrying out chemical analysis of some nine goods when one of them went off, injuring them,” a police official said.
The injured included a laboratory attendant and a woman employee.
More details are awaited.
(With PTI inputs)


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Introduction to Docker basics
What makes a container Production-ready
This talk is not about container Orchestration, or managing a fully containerized environment
What is a Docker Container?
Nothing new!
chroot -> BSD Jails -> LXC -> libcontainer
Docker is a specific implementation of a container
. . . but there are others
So, it's just a light-weight VM?
NO! Containers wrap a process, they are not Virtual Machines.
No hypervisor, no init, no cron, no process monitor, no utilities to manage multiple containers. . .
A Docker container has a single entrypoint, which launches a single process.
^^ Basically Docker
docker run -d --name pg -p 5432:5432 postgres:9.5
psql -h $(docker-machine ip) -U postgres postgres
Short answer: don't use it
Containers host one process
Changes should be built into the container, not made ad hoc
But if you really must get into the container. . .
docker exec -it pg /bin/bash
Adding plpythonu
FROM postgres:9.5
RUN apt-get update \
&& apt-get install -y postgresql-plpython-9.5 \
&& rm -rf /var/lib/apt/lists/*
docker build -t pypg:9.5 .
docker run -d --name pg -p 5432:5432 pypg:9.5
psql -h $(docker-machine ip) -U postgres postgres
Declaring volumes in the image with VOLUME
docker volume ls
docker volume inspect
Docker engine features volume plugins
docker volume create -d local --label="pump_up"
Where are the files?
Log to stdout, collect externally
And / or put logs on a volume
Build a pgBadger only container to handle the physical files
Docker engine features logging plugins
No data-checksums at initdb (and no control of initdb)
Can pass ENV variable $POSTGRES_INITDB_ARGS
The pgdata directory is all on one volume
Tablespaces? WAL? Postgres Log? WAL shipping?
Authentication methods?
Pass parameters to postmaster on startup
Use a volume
You can volume mount a single file (overwrites that file in image)
This works for your SSL certs, too
Generate a simple postgresql.conf with include directives
Split major aspects of the conf into separate files (e.g. logging, WAL writes, locale, SSL)
Touch those file paths in the Dockerfile to create empty stubs
Mount each file on container startup
Not hardly
Running as root, using gosu in script
This means anyone can start the container and exec
into root
Set swappiness 0 with --memory-swappiness
Set run-time constraints
Initialize streaming replica by adding pg_basebackup to entrypoint
Put pgpool-ii in a container
Build pgbouncer into your Postgres container image
Or, volume mount the socket file, and leave pgbouncer in a seperate container that mounts the same volume
Add service discovery (etcd, Consul, Zookeeper)
Several organizations exploring better failover (Joyent Manatee, Red Hat Project Atomic)
Snapshot the volumes
Build a pg_dump / pg_basebackup container
Put pgbackrest in a container (and give it more cores)
Monitoring moves up a level
docker stat
Can you run statsd, or another agent?
One process per container is arbitrary
But now you need something to watch the processes (and remember to EXPOSE the port in your Dockerfile)
Keeping track of lots of containers
What you imagine
What you actually have
Dealing with failures
Every system is hackable
Rapidly changing
Changes to machine version not backward compatible (must rebuild whole environment)
Community fragmentation?
Remember, Docker is an implementation, not a standard
This presentation was built in reveal.js