--- title: "OWLS OF UTAH 1, PORTRAITS IN COLORED PENCIL" date: "2000-01-01 18:04:12 -06:00" categories: - adult - eh subtitle: "" layout: "events" event-image: "owls-of-utah.jpg" event-dates: "THURDAY-SATURDAY, APRIL 12-14" event-location: "Red Butte Garden Classroom" button-type: "register" tickets-link: registration-info: "Registration is closed" instructor-info: "Elaine Hultgren" member-cost: "$150" public-cost: "$187" event-notes: "" tickets-button: "" published: false ---
THURSDAY and FRIDAY, APRIL 12 & 13 @ 6-9PM and SATURDAY, APRIL 14 @ 9AM-4PM
REGISTRATION REQUIRED
Owls have some of the most unforgettable faces in the avian kingdom with their huge eyes and abundant feathers. They demand our attention in so many ways. In this class, we will explore and create at least 2-4 of the 13 species who reside in Utah as well as learn much about them that escape the grasp of common knowledge.
If you have questions please e-mail me at<EMAIL_ADDRESS>or text at<PHONE_NUMBER>.


About Tyler
Thanks for spending time getting to know me
Enjoy this painting of some old dude that looks like me(kinda)
Hi, My name is Tyler. This site is here for you to get to know me a litte bit.
Below are some lists of my top things I like.
My favorite movies
- Lord of the rings
- Star Wars
- Eddie the Eagle
- Chappie
- Hacksaw Ridge
Some of my favorite food genres
- Middle Eastern Food
- Asian Food
- British Food


{% extends 'base.html' %} {% block content %} {% if order_error_message %}
Unless you request a specific date, we will ship your {{value.category_name}} order to arrive at the earliest possible date. We will notify you by e-mail, if for some reason, your request cannot be honored.


--- layout: post title: OK Labs Develops A Defense Grade Mobile Smartphone That Should Appeal to the CIO date: '2012-02-20T22:42:23-08:00' tags: tumblr_url: http://alexhwilliams.tumblr.com/post/18000046245/ok-labs-develops-a-defense-grade-mobile-smartphone-that ---


Software Developer with passion. Excited About IoT, Cloud Technologies.
Interested in Identifing and providing solutions for Cross Industry problems.
I am skilled at HTML5, JavaScript, C#, ASP.NET MVC, WPF, SQL and MEAN stack. I dabble in CSS, Python and F#.


| Module | WillPaginate::ViewHelpers |
| In: |
lib/will_paginate/view_helpers.rb
|
Currently there is only one view helper: will_paginate. It renders the pagination links for the given collection. The helper itself is lightweight and serves only as a wrapper around link renderer instantiation; the renderer then does all the hard work of generating the HTML.
Options for pagination helpers are optional and get their default values from the WillPaginate::ViewHelpers.pagination_options hash. You can write to this hash to override default options on the global level:
WillPaginate::ViewHelpers.pagination_options[:prev_label] = 'Previous page'
By putting this into your environment.rb you can easily translate link texts to previous and next pages, as well as override some other defaults to your liking.
Renders a helpful message with numbers of displayed vs. total entries. You can use this as a blueprint for your own, similar helpers.
<%= page_entries_info @posts %> #-> Displaying entries 6 - 10 of 26 in total
Wrapper for rendering pagination links at both top and bottom of a block of content.
<% paginated_section @posts do %>
 <% for post in @posts %>
 ...
 <% end %>
 <% end %>
will result in:

 ...

 ...

 ...

Arguments are passed to a will_paginate call, so the same options apply. Don‘t use the :id option; otherwise you‘ll finish with two blocks of pagination links sharing the same ID (which is invalid HTML).
Renders Digg/Flickr-style pagination for a WillPaginate::Collection object. Nil is returned if there is only one page in total; no point in rendering the pagination in that case…
All options beside listed ones are passed as HTML attributes to the container element for pagination links (the DIV). For example:
<%= will_paginate @posts, :id => 'wp_posts' %>
… will result in:

 ...

If the helper is called without passing in the collection object, it will try to read from the instance variable inferred by the controller name. For example, calling will_paginate while the current controller is PostsController will result in trying to read from the @posts variable. Example:
<%= will_paginate :id => true %>
… will result in @post collection getting paginated:

 ...


Professional Plan
£100
Unlimited rides
Live chat support
App & Dashboard access
Standard Plan
£50
50 rides
Live chat support
App access
Basic Plan
£20
20 rides
Email support
App access
Your subscription has been registered:
Enjoy safe and cheap carpooling at the power of your finger tips, while your on the go!
Github
Firebase
Android Studio
Using git and github (private repository)
to push new commits into the master
branch, allowing for a steady workflow
for the final release. With the current
commit count being at 30+. Link
to repository can be found here.
FirebaseAuth auth = FirebaseAuth.getInstance();
auth.sendSignInLinkToEmail(email, actionCodeSettings)
.addOnCompleteListener(new OnCompleteListener (Void)() {
@Override
public void onComplete(@NonNull Task(Void) task) {
if (task.isSuccessful()) {
Log.d(TAG, "Email sent.");
}
}
});
Using java as a primary language
in android studio, along with Gradle
for accelerated productivity. Also
the primary code base follows the
Model-view-controller structure for
better intergration and future
devolpment.
Using firebases secure, fast and
reliable realtime database hosted on
Google cloud CDN for a 99% uptime
for all the users connected. Using
the simplifed JSON data structure
so queries from users can be
made quickly. More info here.
£100
Unlimited rides
Live chat support
App & Dashboard access
£50
50 rides
Live chat support
App access
£20
20 rides
Email support
App access


Oconee County Fire Rescue has continued to serve the surrounding community since its inception in 1875. Over the last 150+ years OCFR has remained a fully independent, volunteer ran fire department holding an ISO (Insurance Services Organization) rating of 1; the highest given. This is an impressive feat given our vast territory covering 186 square miles holding a population of approximately 40,000 citizens.
Currently, our services are provided by 20+ volunteers, many of which hold certifications from leading institutions such as Indiana Universities Kelley School of Firefighting Science. Our Ranks include Firefighter, Engineer, Lieutenant, Captain, and Chief. Collectively, our current volunteers make up 250+ years of experience, with many coming from DeKalb County Fire Rescue, located in the northern suburbs of Metropolitan Atlanta. Our department hopes to establish OCFR as a full-career department by the year 2025, in which we will establish a formal hiring process to ensure we are able to continue meeting the needs of our constituents. Interested in joining OCFR? Please reach out to our office at<PHONE_NUMBER>.
Oconee County Fire Rescue is fortunate enough to have Dr. Pipin Brabhakar serving as our 24th Oconee County Commander in Chief. Brabhakar came to the Oconee County area from Cincinatti, OH in 2009 with one goal in mind: tax the poor and rebuild OCFR's fleet to be one of the best in Northern America. Previously, Brabhakar was the Commander in Chief for the University of Cincinatti's Fire Department, in this role he was instrumental in forming a partnership with the UC Bursar Office which held students with delinquent accounts liable for fighting fires and responding to emergencies in the surrounding territory.


Users - Add properties unique to the users you want to store in this collection. Users have username and password properties by default. These are required to login a user.
Properties - Describe the JSON objects you want to store in your collection by adding properties and setting their type.
Validation - By describing the data you expect in your collection you enable deployd to automatically validate new objects.


Single-line textboxes can be augmented with any inline SVG icon, using a textbox__icon element before the control. Font-icons are no longer supported.
Use textbox--icon-end modifier to position the icon after the control.
NOTE: The icon is presentational, and therefore hidden from assistive technology using aria-hidden. Remember, the purpose of the field must be conveyed using a label.
Use textbox__control--underline modifier to style the textbox with only a bottom border to be used in conjuction with floating labels.
Please see the label module for details on labelling controls. Remember: every textbox requires a label!


How much does your websitecost?
We measure cost in seconds:
Source: Time To Interactive from Lighthouse. I ran the test twice and took the faster time.
Mobile Data Can Be Expensive
Would you pay $10
to load this website?

We Can Fix It!
(And it doesn’t mean starting from scratch.)
The Solution:
Progressive Web Apps
With Progressive Web Apps (PWAs), we can:
- Significantly decrease the amount of data transferred on each page load
- Improve the experience for users on unreliable connections
Booooooooooooooring!
“That’s not my target market.”
Can’t we just ignore PWAs?
Here’s why:
- PWAs decrease load times on all connections
- Perceived load times improve
- Stability improves for mobile users everywhere
- User experience is better all around
Real-World Examples
lengstorf.com
- Cold: ~3s (477 KB)
- Warm: ~1s (0.5 KB)
csswizardry.com
- Cold: ~1.5s (339 KB)
- Warm: ~1s (1.1 KB)
That sounds significantly more awesome than eating vegetables.
What makes a PWA?
- Web-based application
- Provides a Web Manifest
- Registers a Service Worker
Web Manifest
{
"short_name": "AirHorner",
"name": "Kinlan's AirHorner of Infamy",
"icons": [{
"src": "launcher-icon-1x.png",
"type": "image/png",
"sizes": "48x48"
}],
"start_url": "index.html?launcher=true"
}
bit.ly/pwa-manifest
Service Worker
self.addEventListener('install', function(event) {
event.waitUntil(
caches.open('mysite-v1').then(function(cache) {
cache.addAll(
// add non-critical assets
);
return cache.addAll(
// add critical assets
);
})
);
});
bit.ly/offline-cookbook
What Service Workers do:
- Cache critical assets when first installed
- Precache non-critical assets in the background
- Act as a proxy for all outgoing requests
- Skip server & provide cached assets if possible
This allows Progressive Web Apps to
load offline on subsequent visits
Service Workers alone aren’t enough to make our apps blazing fast
(They don’t help at all on the first visit.)
To make JS-powered apps really fast, we should:
- Implement route-based code splitting
- Use HTTP/2 to serve assets
- Set up background prefetching
- Lazy load any non-critical assets
Push
Render
Pre-cache
Lazy-load
To make JS-powered apps really fast, we should:
- Implement route-based code splitting
- Use HTTP/2 to serve assets
- Set up background prefetching
- Lazy load any non-critical assets
- Eliminate all unused code
- Use server-side rendering to generate static files
That’s a lot of things.
Route-based code splitting:
- Creates smaller bundles for specific routes
- Creates shared bundles for common code
- Allows loading only what’s really needed
Code splitting with Webpack:
- Use
import()
to identify chunks
- in Webpack 4, use
optimization.splitChunks
- In Webpack 3 or earlier, use
CommonsChunkPlugin
Totally True Internet Fact
If you say “Webpack” 3 times, Sean Larkin will appear.
Serving assets with HTTP/2:
- Allows multiplexed downloads
- Provides push capabilities to minimize requests
Asset prefetching:
- Assumes which routes the user will load next
- Loads the assets for those routes in the background
- Makes loading the next route almost instantaneous
Lazy loading assets:
- Prevents images from blocking the initial load
- Only requests them once they’re in the viewport
“Won’t lazy loading make the page jump?”
Lazy loading with the blur-up technique
Source: medium.com
Lazy loading with traced SVG
Source: Gatsby.js
Lazy loading with simplified polygons
Source: Gatsby.js
Eliminating unused code:
- Reduces the overall size of the codebase
- Helps avoid module bloat
Source: Reddit?
How to remove unused code:
- Use Uglify.js to remove dead code
- Enable tree-shaking with ES modules
- Analyze your bundle output
Serving only static assets:
- Removes the need for runtime server rendering
- Eliminates an extra HTTP round-trip
- Improves cacheability
😱 Server-side rendering?! 😱
☹
Loading 1MB of blocking JavaScript before anything can be displayed
😐
Showing a loading spinner while the framework initializes
😊
Server-side rendering so no JavaScript is required to initially display the page
“But static files won’t work for my app!”
Yes they will. Probably.
If all of this seems a little overwhelming I totally understand
We can get most of these performance improvements for free
Open source is awesome. 🎉💕
How to improve web performance for free:
- sw-precache and/or sw-toolbox
- Next.js + Now
- Gatsby.js + Netlify
sw-precache / sw-toolbox
- Helper libs from the Google team
- Sets up sane defaults for Service Workers
- Requires manual configuration
Next.js
- Framework for server-side rendering React
- Automatic code-splitting
- Requires a server
Now
- Hosting for Node, static, and Docker applications
- Purpose-built for Next.js apps
- Amazingly simple CLI tooling
Gatsby.js
- Framework for building React apps
- Compiles to static files
- Add Service Worker + Web Manifest with plugins
- Generated apps are unbelievably fast
Netlify
- Deployment and hosting for static sites
- Powerful Git workflow integrations
- Automatic, free SSL generation
🔥🔥🔥
Blazing fast apps need fine tuning
PWA Performance Checklist:
✅ Add a Service Worker
✅ Create a Web Manifest
✅ Follow the PRPL Pattern
✅ Remove unused code
✅ Generate static files
Use frameworks to automate perf best practices
- sw-precache and sw-toolbox
- Next.js + Now
- Gatsby.js + Netlify
Spending time on performance is good for everyone.
- Lower cost to pay-per-MB users
- Better experience on mobile and low-powered devices
- Improved reliability on spotty connections
- Apps feel more “solid” on all devices
- Repeat visitors see damn-near instant page loads
When we focus on performance everybody wins
Thanks!
Jason Lengstorf
Follow me on Twitter: @jlengstorf


Chapter 8. Using DB2 Triggers for Integrity
IN THIS CHAPTER
Triggers can be created on DB2 tables to extend the functionality of DB2 databases. By creating triggers, you can create active databases that take action based on naturally occurring database activities. Most of the other major relational database management systems have provided trigger support for a number of years. DB2 was late to the game with triggers (introducing them in V6), but IBM's offering is a very rich, functional implementation of triggers.
If you have not had the opportunity to use triggers, their power may elude you at first. However, once you have used them, living without triggers can be unthinkable.
|


MBI Workshop
Becky Epanchin-Niell
Motivating example of Rabies spatial control in Switzerland
2012 Eco Let: should New Zealand survey for bark beetle? Cost of survellience, control, and damage. Epanchin-Niell et al. (2012)
2012 JEEM spatial spread of star thistle: control spread and eradication as an integer programming problem in deterministic context. (with Wilen) Epanchin-Niell & Wilen (2012)
Breaking landscape into individual landowners makes it less valuable to control early.
Kat Shea
IDH varying both frequency and intensity. Miller et al. (2011) , experimental example in Hall et al. (2012)
- Changing of timing matters more than frequency (e.g. hit weed a key phase of life cycle) Miller et al. (2011b) .
changing autocorrelation of distrubance as a managment strategy
Brian Leung
“Data, uncertainty and risk in biological invasions”
- Alien risk assessments Leung et al. (2012) , shows a dominance of rank scoring over truely quantitative approaches. Limitations to each.
- It’s not the model complexity, but the implementation interface that poses the real barrier. Also need better integration needs.
Breakout session: Spatial strategies for management
Scott Barrett
PDG Control
- back-and-forth with Paul: is second column redundant? Seems not: NPV when paying penalty that doesn’t exist is: profit under penalty (\(\Pi_0(x,h)\)) minus zero (adjustment cost), while scaling is set such that profit under penalty minus adjustment cost, \(\Pi_0(x,h) - \Pi_1(h, c_2)\). Also, better to normalize everything against the adjustment-free ENPV (\(Pi_0\)) than to normalize by the truth/simulation model (which differs in different cases).
See commit log for updated versions.
References
bibliography()
- Rebecca S. Epanchin-Niell, Robert G. Haight, Ludek Berec, John M. Kean, Andrew M. Liebhold, Helen Regan, (2012) Optimal Surveillance And Eradication of Invasive Species in Heterogeneous Landscapes. Ecology Letters 15 803-812 10.1111/j.1461-0248.2012.01800.x
- Rebecca S. Epanchin-Niell, James E. Wilen, (2012) Optimal Spatial Control of Biological Invasions. Journal of Environmental Economics And Management 63 260-270 10.1016/j.jeem.2011.10.003
- A. R. Hall, A. D. Miller, H. C. Leggett, S. H. Roxburgh, A. Buckling, K. Shea, (2012) Diversity-Disturbance Relationships: Frequency And Intensity Interact. Biology Letters 8 768-771 10.1098/rsbl.2012.0282
- Brian Leung, Nuria Roura-Pascual, Sven Bacher, Jaakko Heikkilä, Lluis Brotons, Mark A. Burgman, Katharina Dehnen-Schmutz, Franz Essl, Philip E. Hulme, David M. Richardson, Daniel Sol, Montserrat Vilà, Marcel Rejmanek, (2012) Teasing Apart Alien Species Risk Assessments: A Framework For Best Practices. Ecology Letters 15 1475-1493 10.1111/ele.12003
- A. D. Miller, S. H. Roxburgh, K. Shea, (2011) How Frequency And Intensity Shape Diversity-Disturbance Relationships. Proceedings of The National Academy of Sciences 108 5643-5648 10.1073/pnas.1018594108
- Adam David Miller, Stephen H. Roxburgh, Katriona Shea, (2011) Timing of Disturbance Alters Competitive Outcomes And Mechanisms of Coexistence in an Annual Plant Model. Theoretical Ecology 5 419-432 10.1007/s12080-011-0133-1


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| Genre: | {{playing.genre}} |
| Tags: | {{playing.tag_list}} |
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| Soundcloud url: | {{playing.permalink_url}} |


Programming language is a formal language comprising a set of instructions that produce various kinds of output. Programming languages are used in computer programming to implement algorithms.
Most programming languages consist of instructions for computers. There are programmable machines that use a set of specific instructions, rather than general programming languages. Early ones preceded the invention of the digital computer, the first probably being the automatic flute player described in the 9th century by the brothers Musa in Baghdad, during the Islamic Golden Age.[1] Since the early 1800s, programs have been used to direct the behavior of machines such as Jacquard looms, music boxes and player pianos.[2] The programs for these machines (such as a player piano's scrolls) did not produce different behavior in response to different inputs or conditions.


--- layout: default title: Humanitarian ID pattern library ---
Sass variables to use in styles.
Sass files: common/variables/_fonts.scss, common/variables/_font-sizes.scss
Example: Fonts examples & usage
Example: Icon examples & usage
Re-usables patterns for layouts and components.


[gecode-users] Toroidal symmetry breaking (with LDSB or not)
Martin Ludwag
martin.ludwag at outlook.com
Fri Feb 20 18:28:31 CET 2015
Hello,
I'm currently developing a solver for a problem using Gecode. Paradoxically, I have not encountered any problem for modeling and search solution. However I'm having trouble with symmetry breaking.
My problem is to place in a square array (n × n) elements respecting some constraints. The peculiarity of my problem is that solutions are "toroidal". A concrete example:
Suppose that this arrangement is a solution (here n = 4):
+---+---+---+---+
| a | b | c | d |
+---+---+---+---+
| e | f | g | h |
+---+---+---+---+
| i | j | k | l |
+---+---+---+---+
| m | n | o | p |
+---+---+---+---+
So all these arrangements are symmetric solutions:
(By shifting the rows:)
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
| e | f | g | h | | i | j | k | l | | m | n | o | p |
+---------------+ +---------------+ +---------------+
| i | j | k | l | | m | n | o | p | | a | b | c | d |
+---------------+ +---------------+ +---------------+
| m | n | o | p | | a | b | c | d | | e | f | g | h |
+---------------+ +---------------+ +---------------+
| a | b | c | d | | e | f | g | h | | i | j | k | l |
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
(By shifting the columns:)
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
| b | c | d | a | | c | d | a | b | | d | a | b | c |
+---------------+ +---------------+ +---------------+
| f | g | h | e | | g | h | e | f | | h | e | f | g |
+---------------+ +---------------+ +---------------+
| j | k | l | i | | k | l | i | j | | l | i | j | k |
+---------------+ +---------------+ +---------------+
| n | o | p | m | | o | p | m | n | | p | m | n | o |
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
(By shifting rows and columns:)
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
| f | g | h | e | | k | l | i | j | | p | m | n | o |
+---------------+ +---------------+ +---------------+
| j | k | l | i | | o | p | m | n | | d | a | b | c |
+---------------+ +---------------+ +---------------+
| n | o | p | m | | c | d | a | b | | h | e | f | g |
+---------------+ +---------------+ +---------------+
| b | c | d | a | | g | h | e | f | | l | i | j | k |
+---+---+---+---+ +---+---+---+---+ +---+---+---+---+
This list is not exhaustive, the number of shifts on the rows or columns is arbitrary.
I know that this mailing list is not for general questions on constraint programming, and concerns specifically Gecode. And my problem is that I do not see how to implement symmetry breaking with Gecode.
I thought using LDSB (Lightweight Dynamic Symmetry Breaking), but after reading the documentation and examples, I'm not sure that this tool makes it possible to handle this case. From what I understand, LDSB manages permutations, defining variables (or values) that are interchangeable.
But in my case it is not "isolated" permutations (only one permutation does not give rise to a symmetry). So I do not how to use LDSB to manage shifts.
Similarly, I have not found a way to define constraints so as to break the symmetries. Of course, it is always possible to find all the solutions (symmetries included) and then detect and remove them, but the search space is much larger.
Hence my questions: is it possible to use LDSB to implement symmetry breaking "toroidal"? If not, is it possible to implement symmetry breaking "toroidal" in another way?
I can provide more information if necessary. Anyway, thanks for help.
Martin Ludwag
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Choose the correct answer(s) of the following:(15 marks)
The primary output device in a graphics system is ________.
(A)scanner (B)video monitor (C)keyboard (D)printer
Lower persistence phosophourus is used in _________.
(A)animation (B)simple object (C)complex object (D)all of these
The techniue to minimizing aliasing are _______.
(A)increased number of resolution (B)modify pixel intensities
(C)super sampling (D)all ot these
To efficiently perform polygon fill, we can first store the polygon boundary in a _____ that contains all the information necessary to process scan line efficiently.
(A)memory (B)frame buffer (C)active edge list (D)sorted edge table
In the calculation of all point in a circle, computation step can be reduced by considering the _______ of circle.
(A)quadrant (B)octants (C)circumference (D)symmetry
The basic gemetric structures that describes a scene on display is called _________.
(A)atributees (B)output primitive (C)transformatio (D)translation
Super sampling technique is _________.
(A)prefiltering (B)postfiltering (C)aliasing (D)pixel phasing
The basic attributes of a straight ine segment are ________.
(A)type (B)width (C)color (D)all of these
______ stores the picture information as a charge distribution behind the phosphor-coated screen.
(A)Cathode ray tube (B)Direct-view storage tube
(C)Flat panel displays (D)3D viewing device
The transormation that is used to alter the size of an object is _______.
(A)scaling (B)rotatio (C)translation (D)reflection
The region code of a point within the window is ________.
(A)1111 (B)0000 (C)1000 (D)0010
The mapping of a prt of a world-coordinate scene to device coordinate is sreferred to as a ________.
(A)window (B)view port (C)viewing transformation (D)normalization
A composite transformation matrix can be made by determining the _______ of matrix of the infividual transformation.
(A)sum (B)product (C)difference (D)none of the above
Two consecutive translation transformation t1 and t2 are ________.
(A)additive (B)multiplicative (C)subtractive (D)none of the above
Line clipping algorithm is ________.
(A)Cohen-Sutherland algorithm (B)Liang-Barsky clipping (C)Nicholl-Lee-Nicholl clipping (D)all of the above
What are the two principal applications of image processing and how to apply image processing methods in computer graphics.(5 Marks)
What is the fraction of the total refresh time per frame spen in retrace of the electron beam for a non interlaced taster system with a resolution of 1280 by 1024, a refresh rate o f80Hz , a horizontal retrace time of 6 microseconds, and a vertical retrace time of 600 microseconds? (8 marks)
On an Interlaced Raster System, how much time is spent scanning across all the odd rows of pixels during screen refresh with a resolution of 1280 by 1024 and refresh rate of 60 frames per second?(7 Marks)
Use Bresenham's line algorithm, derive the decision parameters, p0,Pk,Pk+1 for generating points along a straight line path with slope |m|> 1.(9 Marks)
Construct the sorted dege table for the given polygon in the following figure. For each edge, the following information need to be kept in table. The maixmum y value of the two vertices, the 'x' value associated with the minimum 'y' value, the inverse slope of the edge and the address for the next dege. <----Enter photo---->
Explaint how we can apply the nonzero winding number rule to identify the interior region of polygon with example.(6 Marks)
Suppose you have a system with an 8-inch by 10-inch video screen that can display 100 pixels per inch. If a color lookup table with 64 positions is used with this sysem, what is the smallest possible size (in bytes) for the frame buffer?(5 Marks)
Suppose you have a system with 8 inches by 10 inches video screen that can display 100 pixels per inches. In a color lookup table, each pixel cna reference any one of the 512 table positions, and each entry in the table use 24 bits to specify any RGB color.(5 marks)
How many different colors could we display at any onne time?
What is the smallest possible size (in byte) for the frame buffet?
What is total memory size?
Compute the form of the transormation matrix that should be applied to all of the original object A(10,20), B(20,10) and (10,10). Find all of the new points of the transformed object D, E and F if θ = 30 from a fixed point (15,15).(7 Marks) <-----Enter photo------->
Determine the form of transformation matrix for a reflection about an arbitrary line with equation y = mx + b.(10 Marks)
Describe the transformation matrix of the reflection axis as the deagonal line y = x.(3 Marks)
Let W be the rectangular window whose lower left-hand corner is at L(0,0) and upper right-hand corner is at R(10,5). Find the region codes for the endpoints AB where A(-3,_4) and B(12, 9).  The studeio room size is form lower left corner,(0,0) to upper right corner,(100, 100).The model position is about(30,30).Identify the new point location of the model, which will be appeared in the camera, whose lower left corner is (0,0) and upper right corner is (5,5) using the window to viewport cooreinate transformation.


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The following services will be available and when your application is deployed
Explore custom metrics inside your local cluster
Visualize your local cluster telemetry
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China to launch inspection on use of illegal African swine fever vaccines
BEIJING (Reuters) - China’s agriculture ministry said on Monday it will launch an investigation into the illegal production, sale and use of African swine fever vaccines in the country, citing online reports of their use by some farmers.
No country has yet approved a vaccine for the usually deadly hog disease, although several institutes around the world are trying to develop one.
The ministry has previously warned against the use of such products, after reports of both imported and homemade products being used in China.


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03 October 2021
Bootcamp Learning Plan
My Goals
After leaving Dev Academy, I would like to explore the idea of getting back into the medical science industry being equipped with the knowledge and skills I will have gained from this course in a way that could combine IT, tech and health to help people. I don't currently have a destination in mind, but I know that I want to work in a company and with others that share my values and encourages devlopment and learning.
Strengths and Limitations in Relation to Learning
Going into bootcamp, one of my greatest strengths is that I remain committed to working hard and putting in the effort to learn to ensure I am able to succeed in this course. Also that I have a more positive outlook after having gone though foundations and using the core skills that I have learnt so far.
My limitations that could negatively impact my learning during bootcamp will be that I can still spend more time on certain tasks than I should because I want it to be perfect. Another thing is that I still have a lot of self-doubut in my abilities. There were a lot of the technical concepts we learnt during foundations that took a long time click and I'm still not 100% confident in my skills and knowledge.
I think my biggest non-technical challenges at bootcamp will be staying on top of the material, as I know we will be working and learning at a much faster and intense pace than we have in foundations. Also speaking in front of a group will also be a big challenge for me as I am very shy and get nervous speaking up in front of people.
Core Skill Developemt
During bootcamp I hope to continue to develop the human skills I have mentioned in my foundations learning plan below. and also improve in my abilities to give and receive feedback. I want to get better at not taking feedback as being a negative reflection on me as a person, and that any feedback I receive from others will help me improve my skills and knowledge. I also want to get better at being able to give feedback to others, as I tend to keep my opinions and thoughts on the work of others to myself so as not to discourage them.
Committment to Learning
To ensure that I manage my workload productively and safely, I have created a timetable in which I have scheduled in the times I will focus on work, as well as planned breaks. When I'm in the “zone” I can often work for hours without taking a break. I have been sure to schedule in breaks and start using a timer to remind me to take time away from my desk, that way I don’t burn myself out.
When in stressful situations and things start getting to me, my plan is to go and do something that relaxes me and will take my mind off whatever is causing me to stress out for example practicing mediation. I will also make more of an effort to reach out to somebody – this one is probably going to be tough for me as I don’t like to burden others with my problems.
When I am struggling with something, if I haven’t been able to find the answer/resolve the issue within 20-30 mins by myself though researching, I will reach out to my peers, ask for help in the Discord help channels or ask my bootcamp facilitator if required.
Expectations for the Bootcamp Team
The two main expectations I have for the bootcamp team are for them to be encouraging and motivating and to be honest when giving criticism, but also offering advice on ways to improve.
10 September 2021
Foundations Learning Plan
My Goals
My long-term goal is to work as web-developer in a company that shares the same values as I do. I would love a job that allows me to work in an office with others, but also have the flexibility to work remotely. My ideal job would also be working for a company that encourages continuous learning and professional development. I would also like to continue my learning journey and learn other coding languages and work on continually upskilling myself.
Strengths and Limitations in Relation to Learning
Some of my strengths in relation to learning is that I am hard-working, and I have a growth mindset. I always try my best and am committed learning and understand that even when I don’t understand it straight away that with some perseverance I can succeed. Ultimately, I know that any setbacks I experience, will help me improve in the long run.
My limitations that could negatively impact my learning is that I am a perfectionist and prone to burnout. Because I am a perfectionist, I tend to get bogged down by details and spend too much time making sure that everything is completed without any errors/mistakes and to a high standard. This tends to slow me down a bit. I find it hard to just walk away from something without completing it first, and often neglect to take breaks so that I can get the work done.
Core Skill Developemt
The non-technical skills I would like to develop while at Dev Academy are communication, problem-solving skills, and my self-belief/confidence levels. I am an extremely shy and reserved person and have always struggled with verbal communication when I meet new people. I would also like to develop my problem-solving skills – in my previous job, although there were aspects in which we had to find solutions ourselves, most solutions to problems we encountered where already set out in our standard operating procedures manuals. I am hoping this course will allow me to develop my ability to think outside of the box when solving problems. Finally, I would like to work on my self-belief/confidence levels because whenever I try something new, I always have that little voice in my head that tells me I can’t do it, and this tends to make me feel less confident in my abilities.
Committment to Learning
To ensure that I manage my workload productively and safely, I have created a timetable in which I have scheduled in the times I will focus on work, as well as planned breaks. When I'm in the “zone” I can often work for hours without taking a break. I have been sure to schedule in breaks and start using a timer to remind me to take time away from my desk, that way I don’t burn myself out.
When in stressful situations and things start getting to me, my plan is to go and do something that relaxes me and will take my mind off whatever is causing me to stress out, i.e., meditate for 10 minutes, make myself a snack, or go do some exercise. Also reach out to somebody – this one is probably going to be tough for me as I don’t like to burden others with my problems.
When I am struggling with something, if I haven’t been able to find the answer/resolve the issue within 20-30 mins by myself though researching, I will reach out to my peers in the Foundations Channel in Slack, or DM my facilitator if required.
Expectations for the Facilitation Team
The two main expectations I have for the facilitation team are for them to be encouraging and to be honest when giving criticism, but also offering advice on ways to improve.


Gordon Sondland: Trump Never Told Me About Preconditions for ‘Anything'
Ambassador to the European Union Gordon Sondland testified Wednesday in the fifth public hearing of Democrats’ impeachment inquiry that President Trump never talked to him personally about preconditions on “anything” having to do with Ukraine.
by Kristina WongDemocrats have accused Trump of withholding a White House meeting and $400 million military aid for Ukraine in exchange for Ukraine trying to dig up dirt on political rivals. However, Sondland — a key witness in their case — testified that he never heard the president personally talk about any preconditions.
The Republican counsel Steve Castor asked Sondland: “Did the president ever tell you personally about pre-conditions for anything?”
Sondland responded, “No.”
Castor asked: “OK, so the president never told you about any preconditions for the aid to be released?”
Again Sondland responded, “No.”
Finally, Castor asked: “The president never told you about any preconditions for a White House meeting?”
Sondland responded, “Personally, no.”
Sondland said Giuliani had asked for a statement from Ukraine that would commit them to help with an ongoing U.S. investigation into the origins of the Russia collusion hoax and Burisma, a Ukrainian natural gas company whose CEO was under investigation at the time they hired Hunter Biden to sit on its board for $50,000 a month and then-Vice President Joe Biden called for the firing of Ukraine’s then-prosecutor general.
When asked by Castor if Giuliani’s request was expressing the desires of Trump himself, Sondland said he only assumed that.
He said he assumed it because Trump had said “talk to Rudy,” during a May 23 meeting when Sondland and several others tried to get Trump to engage with the newly-elected Ukrainian president.
“I’m not testifying that I heard the president tell Guiliani to tell us,” Sondland said.
Sondland also testified earlier in his testimony that he called Trump on September 9 to ask what he wanted from Ukraine.
He said Trump told him that he wanted “nothing” from Ukraine. “No quid pro quo,” he said Trump told him.
Follow Breitbart News’ @Kristina_Wong.


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Hiring bias is slowly becoming a thing of the past, however it has not been totally eradicated yet.
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Sacha Baron Cohen to receive ADL award
ADL to present 'Borat' star with leadership award for combating anti-Semitism, racism through comedy.
by Gary WilligJewish comedian Sacha Baron Cohen will receive the Anti-Defamation League's (ADL) International Leadership Award for his use of comedy to fight anti-Semitism and other forms of racism, The Jewish Chronicle reported Tuesday.
“Sacha’s fictional satirical characters have made us laugh at the kinds of hatred and prejudice that under normal circumstances would be no laughing matter," ADL CEO Jonathan A. Greenblatt said in a statement.
“There’s many ways to combat prejudice, and anti-bias education, exposure and awareness are important tools. But there are other, more unorthodox ways to fight hate. Sacha’s hilarious characters fall into that latter category," Greenblatt added.
Cohen is known for playing characters who expose racism and bias in satirical films and television, including the 2006 hit comedy 'Borat.' He currently portrays Eli Cohen, the famed Israeli spy in Syria, in the Netflix series The Spy.
Cohen will receive the award at the ADL’s ‘Never Is Now’ Summit, which will be held on Thursday in New York City.


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This is a dummy generated text by Effa as part of the site.  That is why i decided to generate this thing my self.
This is a dummy generated text by Effa as part of the site.  That is why i decided to generate this thing my self. Feel free to replace this text with whatever you want!
This is a dummy generated text by Effa as part of the site.  That is why i decided to generate this thing my self. Feel free to replace this text with whatever you want
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Class: ActiveRecord::ConnectionAdapters::ConnectionPool::ConnectionLeasingQueue
| Relationships & Source Files | |
| Super Chains via Extension / Inclusion / Inheritance | |
|
Class Chain:
self,
Queue
|
|
|
Instance Chain:
self,
BiasableQueue ,
Queue
|
|
| Inherits: |
ActiveRecord::ConnectionAdapters::ConnectionPool::Queue
|
| Defined in: | activerecord/lib/active_record/connection_adapters/abstract/connection_pool/queue.rb |
Overview
Connections must be leased while holding the main pool mutex. This is an internal subclass that also .leases
returned connections while still in queue’s critical section (queue synchronizes with the same @lock
as the main pool) so that a returned connection is already leased and there is no need to re-enter synchronized block.
Class Method Summary
Instance Attribute Summary
Queue
- Inherited
| #any_waiting? | Test if any threads are currently waiting on the queue. |
| #any? | Test if the queue currently contains any elements. |
| #can_remove_no_wait? | A thread can remove an element from the queue without waiting if and only if the number of currently available connections is strictly greater than the number of waiting threads. |
Instance Method Summary
- #internal_poll(timeout) private
BiasableQueue
- Included
Queue
- Inherited
| #add | Add |
| #clear | Remove all elements from the queue. |
| #delete | If |
| #num_waiting | Returns the number of threads currently waiting on this queue. |
| #poll | Remove the head of the queue. |
| #internal_poll, | |
| #no_wait_poll | Remove and return the head of the queue if the number of available elements is strictly greater than the number of threads currently waiting. |
| #remove | Removes and returns the head of the queue if possible, or |
| #synchronize, | |
| #wait_poll | Waits on the queue up to |
Constructor Details
This class inherits a constructor from ActiveRecord::ConnectionAdapters::ConnectionPool::Queue
Instance Method Details
#internal_poll(timeout) (private)
[ GitHub ]# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool/queue.rb', line 203
def internal_poll(timeout) conn = super conn.lease if conn conn end


Last Updated: 2021-07-23
In this codelab, you are going to deploy a compute optimized Google Compute Engine (GCE) instance Google Cloud with FEOTS pre-installed. You will use Terraform to deploy the instance, it's VPC Network, Firewall rules, and service account. Then, you will use this infrastructure to run the Argentine Basin test case.
In HPC, there are clear distinctions between system administrators and system users. System administrators generally have "root access" enabling them to manage and operate compute resources. System users are generally researchers, scientists, and application engineers who only need to use the resources to execute jobs.
On Google Cloud, the OS Login API provisions POSIX user information from Google Workspace, Cloud Identity, and Gmail accounts. Additionally, OS Login integrates with GCP's Identity and Access Management (IAM) system to determine if users should be allowed to escalate privileges on Linux systems.
In this tutorial, we assume you are filling the system administrator and compute engine administrator roles. We will configure IAM policies to give you sufficient permissions to accomplish the following tasks
To give yourself the necessary IAM roles to complete this tutorial, in the Google Cloud Console:
Your login now has the permissions required to initiate the creation of the HPC cluster.
To verify you have assigned the correct roles, open your Cloud Shell, and run the following command, replacing YOUR_PROJECT
and EMAIL_ADDRESS
with your project and email address.
$ gcloud projects get-iam-policy YOUR_PROJECT --flatten="bindings[].members" --format='table(bindings.role)' --filter="bindings.members=user:EMAIL_ADDRESS"
This command will yield the output:
ROLE roles/compute.osLogin roles/iam.serviceAccountUser roles/compute.admin
In this section, you will deploy a single compute optimized GCE instance that will be used to run FEOTS. This instance will have 16 Intel Cascade Lake vCPU's.
cd ~ git clone https://github.com/FluidNumerics/rcc-apps.git
feots
terraform directory:cd ~/rcc-apps/feots/tf/gce_cluster
make plan
make apply
Option: This pair of gcloud commands will figure out the login node name and SSH into it:
export CLUSTER_LOGIN_NODE=$(gcloud compute instances list --zones us-west1-b --filter="name ~ feots.*" --format="value(name)" | head -n1)
gcloud compute ssh ${CLUSTER_LOGIN_NODE} --zone us-west1-b
$ feots --help FEOTS (feots) Command Line Interface Copyright Los Alamos National Laboratory (2017-2020) Licensed for use under 3-Clause BSD License For support related issues, https://github.com/lanl/feots/issues/new A program for performing creating impulse functions, diagnosing transport operators from POP IRFs, and conducting offline tracer simulations using diagnosed transport operators. feots [tool] [options] [tool] can be : impulse Use a POP-Mesh, with land-mask, and a chosen advection-difussion stencil to create impulse fields for capturing impulse response functions. popmesh Extract POP-Mesh information from POP standard output. genmask Create a regional FEOTS mask using lat-lon domain bounds operator-diagnosis Diagnose transport operators using impulse fields and POP IRF output. You must specify the IRF file using the --irf option. region-extraction Create regional transport operators from global transport operators. Regional operators are stored in the --regional-db directory. genmaps Create a mappings.regional file from a valid mask file. The mappings.regional file is stored in the --out directory. initialize Use the built in initialization routines to create tracer initial conditions integrate Run the offline tracer simulation in a forward integration mode equilibrate Run the offline tracer simulation using JFNK to find the equilibrated tracer field [options] can be : --help Display this help message --param-file /path/to/param/file Specifies the full path to a file with namelist settings for the feots application. If not provided, runtime.params in your current directory is assumed. --pop-file /path/to/irf-file Specifies the full path to a netcdf file with standard POP output (For popmesh) --irf /path/to/irf-file Specifies the full path to a netcdf file with IRFs (For operator diagnosis and regional extraction) --oplevel 0 Specifies the index of the operator in the operator sequence This option determines the time level encoded to _advect.{oplevel}.data/conn --dbroot /path/to/feot/db Specifies the path to a FEOTS database --out /path/to/output/directory Specifies the path to write model output. Defaults to ./ --no-vertical-mixing Disables the vertical mixing operator for forward integration and equilibration --regional-db /path/to/regional-database/directory Specifies the path to read/write regional operators. Defaults to ./
/opt/feots/examples/zapiola
has the contents listed below. $ ls /opt/feots/examples/zapiola bash demo.sh FEOTSInitialize.f90 FEOTSInitialize.o genmask GenMask.f90 GenMask.o init irfs makefile README.md runtime.params slurm
To run the Argentine Basin demo, you will execute a provided script that
The input decks for this example are included in the FEOTS VM image under /opt/feots-db
. This includes a global mesh file and the regional extracted transport and vertical mixing operators for the Argentine Basin simulation.
For this section, you must be SSH connected to the feots-0 node created in the previous section
$ bash /opt/feots/examples/zapiola/demo.sh
Wait for the job to complete.
feots/
that contains the simulation output. The directory will contain NetCDF output for each dye tracer for every 200 iterations ( 2.5 simulation days )$ ls feots/ genmask Tracer.00000.0000001000.nc Tracer.00001.0000001400.nc Tracer.00002.init.nc Tracer.00004.0000000400.nc Tracer.00005.0000000800.nc gmon.out Tracer.00000.0000001200.nc Tracer.00001.0000001600.nc Tracer.00003.0000000200.nc Tracer.00004.0000000600.nc Tracer.00005.0000001000.nc init Tracer.00000.0000001400.nc Tracer.00001.init.nc Tracer.00003.0000000400.nc Tracer.00004.0000000800.nc Tracer.00005.0000001200.nc mappings.regional Tracer.00000.0000001600.nc Tracer.00002.0000000200.nc Tracer.00003.0000000600.nc Tracer.00004.0000001000.nc Tracer.00005.0000001400.nc mask.nc Tracer.00000.init.nc Tracer.00002.0000000400.nc Tracer.00003.0000000800.nc Tracer.00004.0000001200.nc Tracer.00005.0000001600.nc mesh.nc Tracer.00001.0000000200.nc Tracer.00002.0000000600.nc Tracer.00003.0000001000.nc Tracer.00004.0000001400.nc Tracer.00005.init.nc runtime.params Tracer.00001.0000000400.nc Tracer.00002.0000000800.nc Tracer.00003.0000001200.nc Tracer.00004.0000001600.nc Tracer.00000.0000000200.nc Tracer.00001.0000000600.nc Tracer.00002.0000001000.nc Tracer.00003.0000001400.nc Tracer.00004.init.nc Tracer.00000.0000000400.nc Tracer.00001.0000000800.nc Tracer.00002.0000001200.nc Tracer.00003.0000001600.nc Tracer.00005.0000000200.nc Tracer.00000.0000000600.nc Tracer.00001.0000001000.nc Tracer.00002.0000001400.nc Tracer.00003.init.nc Tracer.00005.0000000400.nc Tracer.00000.0000000800.nc Tracer.00001.0000001200.nc Tracer.00002.0000001600.nc Tracer.00004.0000000200.nc Tracer.00005.0000000600.nc
In this codelab, you created a compute optimized GCE instance on Google Cloud and ran an offline tracer simulation using FEOTS and ocean transport operators generated from a state-of-the-art climate simulation.
To avoid incurring charges to your Google Cloud account for the resources used in this codelab:
The easiest way to eliminate billing is to delete the project you created for the codelab.
Caution: Deleting a project has the following effects:
If you plan to explore multiple codelabs and quickstarts, reusing projects can help you avoid exceeding project quota limits.
feots/tf/gce_cluster
example directorycd ~/rcc-apps/feots/tf/gce_cluster
make destroy


The S3A filesystem client supports Amazon S3’s Server Side Encryption for at-rest data encryption. You should to read up on the AWS documentation for S3 Server Side Encryption for up to date information on the encryption mechanisms.
When configuring an encryption method in the core-site.xml, this will apply cluster wide. Any new file written will be encrypted with this encryption configuration. When the S3A client reads a file, S3 will attempt to decrypt it using the mechanism and keys with which the file was encrypted.
AWS S3 supports server-side encryption inside the storage system itself. When an S3 client uploading data requests data to be encrypted, then an encryption key is used to encrypt the data as it saved to S3. It remains encrypted on S3 until deleted: clients cannot change the encryption attributes of an object once uploaded.
The Amazon AWS SDK also offers client-side encryption, in which all the encoding and decoding of data is performed on the client. This is not supported by the S3A client.
The server-side “SSE” encryption is performed with symmetric AES256 encryption; S3 offers different mechanisms for actually defining the key to use.
There are four key management mechanisms, which in order of simplicity of use, are:
This feature allows the administrators of the AWS account to set the “default” encryption policy on a bucket -the encryption to use if the client does not explicitly declare an encryption algorithm.
S3 Default Encryption for S3 Buckets
This supports SSE-S3 and SSE-KMS.
There is no need to set anything up in the client: do it in the AWS console.
In SSE-S3, all keys and secrets are managed inside S3.  There is no extra cost for storing data with this option.
To write S3-SSE encrypted files, the value of fs.s3a.server-side-encryption-algorithm must be set to that of the encryption mechanism used in core-site; currently only AES256 is supported.
<property> <name>fs.s3a.server-side-encryption-algorithm</name> <value>AES256</value> </property>
Once set, all new data will be stored encrypted. There is no need to set this property when downloading data — the data will be automatically decrypted when read using the Amazon S3-managed key.
To learn more, refer to Protecting Data Using Server-Side Encryption with Amazon S3-Managed Encryption Keys (SSE-S3) in AWS documentation.
Amazon offers a pay-per-use key management service, AWS KMS. This service can be used to encrypt data on S3 by defining “customer master keys”, CMKs, which can be centrally managed and assigned to specific roles and IAM accounts.
The AWS KMS can be used encrypt data on S3uploaded data.
The AWS KMS service is not related to the Key Management Service built into Hadoop (Hadoop KMS). The Hadoop KMS primarily focuses on managing keys for HDFS Transparent Encryption. Similarly, HDFS encryption is unrelated to S3 data encryption.
When uploading data encrypted with SSE-KMS, the sequence is as follows.
The S3A client must declare a specific CMK in the property fs.s3a.server-side-encryption.key, or leave it blank to use the default configured for that region.
The S3A client uploads all the data as normal, now including encryption information.
The S3 service encrypts the data with a symmetric key unique to the new object.
The S3 service retrieves the chosen CMK key from the KMS service, and, if the user has the right to use it, uses it to encrypt the object-specific key.
When downloading SSE-KMS encrypted data, the sequence is as follows
KMS keys can be managed by an organization’s administrators in AWS, including having access permissions assigned and removed from specific users, groups, and IAM roles. Only those “principals” with granted rights to a key may access it, hence only they may encrypt data with the key, and decrypt data encrypted with it. This allows KMS to be used to provide a cryptographically secure access control mechanism for data stores on S3.
Each KMS server is region specific, and accordingly, so is each CMK configured. A CMK defined in one region cannot be used with an S3 bucket in a different region.
Notes
To enable SSE-KMS, the property fs.s3a.server-side-encryption-algorithm must be set to SSE-KMS in core-site:
<property> <name>fs.s3a.server-side-encryption-algorithm</name> <value>SSE-KMS</value> </property>
The ID of the specific key used to encrypt the data should also be set in the property fs.s3a.server-side-encryption.key:
<property> <name>fs.s3a.server-side-encryption.key</name> <value>arn:aws:kms:us-west-2:360379543683:key/071a86ff-8881-4ba0-9230-95af6d01ca01</value> </property>
Organizations may define a default key in the Amazon KMS; if a default key is set, then it will be used whenever SSE-KMS encryption is chosen and the value of fs.s3a.server-side-encryption.key is empty.
With SSE-KMS, the S3A client option fs.s3a.server-side-encryption.key sets the key to be used when new files are created. When reading files, this key, and indeed the value of fs.s3a.server-side-encryption-algorithme is ignored: S3 will attempt to retrieve the key and decrypt the file based on the create-time settings.
This means that
In SSE-C, the client supplies the secret key needed to read and write data. Every client trying to read or write data must be configured with the same secret key.
SSE-C integration with Hadoop is still stabilizing; issues related to it are still surfacing. It is already clear that SSE-C with a common key must be used exclusively within a bucket if it is to be used at all. This is the only way to ensure that path and directory listings do not fail with “Bad Request” errors.
To use SSE-C, the configuration option fs.s3a.server-side-encryption-algorithm must be set to SSE-C, and a base-64 encoding of the key placed in fs.s3a.server-side-encryption.key.
<property> <name>fs.s3a.server-side-encryption-algorithm</name> <value>SSE-C</value> </property> <property> <name>fs.s3a.server-side-encryption.key</name> <value>SGVscCwgSSdtIHRyYXBwZWQgaW5zaWRlIGEgYmFzZS02NC1jb2RlYyE=</value> </property>
All clients must share this same key.
With SSE-C, the S3A client option fs.s3a.server-side-encryption.key sets the key to be used for both reading and writing data.
When reading any file written with SSE-C, the same key must be set in the property fs.s3a.server-side-encryption.key.
This is unlike SSE-S3 and SSE-KMS, where the information needed to decode data is kept in AWS infrastructure.
You need to fully understand how SSE-C works in the S3 environment before using this encryption type. Please refer to the Server Side Encryption documentation available from AWS. SSE-C is only recommended for advanced users with advanced encryption use cases. Failure to properly manage encryption keys can cause data loss. Currently, the AWS S3 API(and thus S3A) only supports one encryption key and cannot support decrypting objects during moves under a previous key to a new destination. It is NOT advised to use multiple encryption keys in a bucket, and is recommended to use one key per bucket and to not change this key. This is due to when a request is made to S3, the actual encryption key must be provided to decrypt the object and access the metadata. Since only one encryption key can be provided at a time, S3A will not pass the correct encryption key to decrypt the data.
Because it is up to the clients to enable encryption on new objects, all clients must be correctly configured in order to guarantee that data is encrypted.
To mandate that all data uploaded to a bucket is encrypted, you can set a bucket policy declaring that clients must provide encryption information with all data uploaded.
Here is a policy to mandate SSE-S3/AES265 encryption on all data uploaded to a bucket. This covers uploads as well as the copy operations which take place when file/directory rename operations are mimicked.
{ "Version": "2012-10-17", "Id": "EncryptionPolicy", "Statement": [ { "Sid": "RequireEncryptionHeaderOnPut", "Effect": "Deny", "Principal": "*", "Action": [ "s3:PutObject" ], "Resource": "arn:aws:s3:::BUCKET/*", "Condition": { "Null": { "s3:x-amz-server-side-encryption": true } } }, { "Sid": "RequireAESEncryptionOnPut", "Effect": "Deny", "Principal": "*", "Action": [ "s3:PutObject" ], "Resource": "arn:aws:s3:::BUCKET/*", "Condition": { "StringNotEquals": { "s3:x-amz-server-side-encryption": "AES256" } } } ] }
To use SSE-KMS, a different restriction must be defined:
{ "Version": "2012-10-17", "Id": "EncryptionPolicy", "Statement": [ { "Sid": "RequireEncryptionHeaderOnPut", "Effect": "Deny", "Principal": "*", "Action": [ "s3:PutObject" ], "Resource": "arn:aws:s3:::BUCKET/*", "Condition": { "Null": { "s3:x-amz-server-side-encryption": true } } }, { "Sid": "RequireKMSEncryptionOnPut", "Effect": "Deny", "Principal": "*", "Action": [ "s3:PutObject" ], "Resource": "arn:aws:s3:::BUCKET/*", "Condition": { "StringNotEquals": { "s3:x-amz-server-side-encryption": "SSE-KMS" } } } ] }
To use one of these policies:
In an organisation which has embraced S3 encryption, different buckets inevitably have different encryption policies, such as different keys for SSE-KMS encryption. In particular, as different keys need to be named for different regions, unless you rely on the administrator-managed “default” key for each S3 region, you will need unique keys.
S3A’s per-bucket configuration enables this.
Here, for example, are settings for a bucket in London, london-stats:
<property> <name>fs.s3a.bucket.london-stats.server-side-encryption-algorithm</name> <value>AES256</value> </property>
This requests SSE-S; if matched with a bucket policy then all data will be encrypted as it is uploaded.
A different bucket can use a different policy (here SSE-KMS) and, when necessary, declare a key.
Here is an example bucket in S3 Ireland, which uses SSE-KMS and a KMS key hosted in the AWS-KMS service in the same region.
<property> <name>fs.s3a.bucket.ireland-dev.server-side-encryption-algorithm</name> <value>SSE-KMS</value> </property> <property> <name>fs.s3a.bucket.ireland-dev.server-side-encryption.key</name> <value>arn:aws:kms:eu-west-1:98067faff834c:key/071a86ff-8881-4ba0-9230-95af6d01ca01</value> </property>
Again the appropriate bucket policy can be used to guarantee that all callers will use SSE-KMS; they can even mandate the name of the key used to encrypt the data, so guaranteeing that access to thee data can be read by everyone granted access to that key, and nobody without access to it.
The encryption of an object is set when it is uploaded. If you want to encrypt an unencrypted file, or change the SEE-KMS key of a file, the only way to do so is by copying the object.
How can you do that from Hadoop? With rename().
The S3A client mimics a real filesystem’s’ rename operation by copying all the source files to the destination paths, then deleting the old ones.
Note: this does not work for SSE-C, because you cannot set a different key for reading as for writing, and you must supply that key for reading. There you need to copy one bucket to a different bucket, one with a different key. Use distCpfor this, with per-bucket encryption policies.
The troubleshooting document covers stack traces which may surface when working with encrypted data.


ATTR_GEN_FILE_SELECTOR_FILE_ATTR, MSG_GEN_FILE_SELECTOR_GET_FILE_ATTRS, MSG_GEN_FILE_SELECTOR_SET_FILE_ATTRS
All files have a number of attributes stored in a record of type
FileAttrs
. (For full information on
FileAttrs
, see the File System chapter.) To filter files based on the FileAttrs
record, set your File Selector's variable data instance field
ATTR_GEN_FILE_SELECTOR_FILE_ATTR
to reflect the attributes that must be on and those that must be off.
ATTR_GEN_FILE_SELECTOR_FILE_ATTR
is a structure of type
GenFileSelectorFileAttrs
, shown below. This structure contains two fields:
GFSFA_match
represents the attributes an acceptable file has on, and
GFSFA_mismatch
represents the attributes an acceptable file has off.
typedef struct { FileAttrs GFSFA_match; FileAttrs GFSFA_mismatch; } GenFileSelectorFileAttrs;
Note: For directories not to be filtered out when FSFC_DIRS isn't set, you must mismatch FA_SYSTEM and FA_HIDDEN. That is, to show only those subdirectories which match your filter criteria, ensure FSFC_DIRS is not set, and set mismatch attributes thus:
ATTR_GEN_FILE_SELECTOR_FILE_ATTR = { 0, FA_HIDDEN | FA_SYSTEM }
You may retrieve the current file attributes by sending the message
MSG_GEN_FILE_SELECTOR_GET_FILE_ATTRS
to the File Selector object. You may set new file attribute limitations by sending it the message
MSG_GEN_FILE_SELECTOR_SET_FILE_ATTRS
.
void MSG_GEN_FILE_SELECTOR_SET_FILE_ATTRS( FileAttrs setAttrs, FileAttrs clearAttrs);
This message sets the
ATTR_GEN_FILE_SELECTOR_FILE_ATTR
vardata instance field of the File Selector. If the File Selector is visible on the screen when it receives this message, it will rescan the directory immediately with the new attributes.
Source: Unrestricted.
Destination: Any GenFileSelector object
Parameters:
setAttrs
A
FileAttrs
record to be set into
GFSFA_match
. Only files with these flags set will pass the filter.
clearAttrs
FileAttrs
record to be set into
GFSFA_mismatch
. Only files with these flags cleared will pass the filter.Return: Nothing.
Interception: Generally not intercepted.
See Also:
MSG_GEN_FILE_SELECTOR_SET_FILE_CRITERIA
word MSG_GEN_FILE_SELECTOR_GET_FILE_ATTRS();
This message returns the ATTR_GEN_FILE_SELECTOR_FILE_ATTR of the File Selector. This attribute contains two byte-sized fields which represent the match and mismatch attributes (see above).
Source: Unrestricted.
Destination: Any GenFileSelector object.
Parameters: None.
Return: A word value: The high byte represents the mismatch attributes, and the low byte represents the match attributes. To extract these two fields from the returned value, use the macros GET_MATCH_FILE_ATTRS and GET_MISMATCH_FILE_ATTRS (below).
Interception: Generally not intercepted.
See Also:
MSG_GEN_FILE_SELECTOR_SET_FILE_CRITERIA
byte GET_MATCH_FILE_ATTRS(attr); word attr;
This macro extracts the
GFSFA_match
portion of the word value returned by
MSG_GEN_FILE_SELECTOR_GET_FILE_ATTRS
. The extracted value is a record of
FileAttrs
.
byte GET_MISMATCH_FILE_ATTRS(attr); word attr;
This macro extracts the
GFSFA_mismatch
portion of the word value returned by
MSG_GEN_FILE_SELECTOR_GET_FILE_ATTRS
. The extracted value is a record of
FileAttrs
.


Shaunak Kashyap • @shaunak
$ bin/plugin -i elasticsearch/license/latest
$ bin/plugin -i elasticsearch/watcher/latest
PUT /_watcher/watch/{name-of-watch}
{
"trigger": ...,
"input": ...,
"condition": ...,
"actions": ...
}
PUT /_watcher/watch/{name-of-watch}
{
"trigger": {
"schedule": {
"interval": "10s"
}
},
"input": ...,
"condition": ...,
"actions": ...
}
Other types of schedule triggers available are
cron
, hourly
, daily
, weekly
, monthly
, and yearly
PUT /_watcher/watch/{name-of-watch}
{
"trigger": ...,
"input": {
"search": {
"request": {
"indices": [ "tickets" ],
"types": [ "ticket" ],
"body": {
"query": {
"match_all": {}
}
}
}
}
},
"condition": ...,
"actions": ...
}
Other types of inputs available are simple
, and http
PUT /_watcher/watch/{name-of-watch}
{
"trigger": ...,
"input": ...,
"condition": {
"compare" : {
"ctx.payload.hits.total" : {
"gte" : 5
}
}
},
"actions": ...
}
Other types of conditions available are
script
, always
, and never
PUT /_watcher/watch/{name-of-watch}
{
"trigger": ...,
"input": ...,
"condition": ...,
"actions": {
"email_administrator" : {
"throttle_period": "15m",
"email" : {
"to"<EMAIL_ADDRESS>"subject" : "Encountered {{ctx.payload.hits.total}} errors",
"body" : "Too many error in the system, see attached data",
"attach_data" : true
}
}
}
}
Other types of actions available are
webhook
, index
, and logging


Welcome to ethart
Here you can create Ethereum's ERC-721 "Non-Fungible Tokens" by storing files via IPFS or on-chain without pay hidden fees and without any coding skill needed.
You need a Web3 Enabler to access this site!
This protocol is provided with ❤ by the DFOhub team, you can verify the code you're running here and the R&D repo here


| Parser |
The basic framework of the calculator has now been presented. Given the grammar defined in the grammar overview and the implementation of the virtual machine, we are now in a position to describe the parser that goes from the one to the other.
The simple numerical expression sin(sqrt(2)/3) was used to describe the operation of the virtual machine. Such expressions form the right hand side of any statement that can be understood by YAC. However, the grammar defining all allowable expressions is rather complex. Moreover, much of the implementation is rather repetitive. I have, therefore, chosen to begin these implementation notes with a description of the code used to parse the variable and function declarations. After all, we've all seen enough code to parse a numerical expression by now. Time to look at the stuff that enables YAC to be a programmable calculator.
Copyright © 2004 Angus Leeming
Distributed under the Boost Software License,
Version 1.0. (See accompanying file
LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt
)


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Fast fourier transform is a discrete fourier transform which uses a divide and conquer approach and hence is faster
time complexity of FFT is O(nlogn)
Concepts:
A signal has different kinds of representations 1) coefficient representation 2)point value representation
3)Vector representation all these forms are internconvertible A signal can be considered as a polynomial equation eg:1 - 5 x + x² 3
the highest power in the polynimial equation is called degree of polynomial here it is 2 On X-Y plane, if we evaluate this equation for different values of x on X-axis,we will get different values of equation for Y-axis
eg: for x=1 equation 1 - 5 x + x² 3 will become 1-5(1) + (1²)*3=-1 hence it will create a point on XY plane (1,-1)
This method of evaluating the coefficient form of a signal against different values of x is called "Evalation"
and the inverse of the process is called "Interpolation"
Evaluating a coefficient form of a signal against (degree + 1) values of x to get (degree + 1) points gives us a point value representation of the signal
Converting coefficient form to point value form takes multiplication of atleast (degree - 1) multiplications for (degree + 1) values of x
hence the time complexity of thiis process of converting a coefficient form of signal into point value form is O(n² )


The oddest thing about Stranger than paradise is that it is not strange at all.  It might sound strange to some with a piece of music especially the line "I put a spell on you" being repeated over and over. But it is not any stranger than the everyday life that we live.
Meet Willie (played by John Lurie) an immigrant who is trying really hard to become an American. He watches football. Likes to speak English and prefers to dress like the locals. He has lost touch with his family and his country. Expect for aunt Lotte. One day aunt Lotte calls him. She asks him to allow his cousin to say with him for a while. Willie hesitates but she would hear none of it and that is that.
Meet Eva (played by Eszter Balint). Willie's 16 year old cousin. Just as aunt Lotte told she comes by , one day, to Willie's apartment. Reluctantly Willie lets her in. But he is cold and distant towards her. Eva on her part is not too fond of him either. The turning point in their relationship comes when Eva steals grocery from a local shop after which Willie warms up to her. As they get to know each other they discover that they are not much different after all.
Meet Eddie (played by Richard Edson). Willie's friend and partner in crime. From the beginning he his much more friendlier to Eva than her brother. He even asks him to take her to the movies with them but Willie says no.
Soon Eva's time at the apartment comes to an end and she decides to leave it to go to aunt Lotte's place. Willie brings her a parting gift. A nice dress just like the American girls like to wear. Eva does not like it but after much insistence puts it on just to please Willie. Only to throw it away outside his apartment. Cold but that is just how she is.
An year passes. Willie and Eddie have swindled few men in poker and have now in their possession some hefty cash. They decide to visit Eva at aunt Lotte's. Eva is very happy to see them and decides to show them around. But there is nothing much to see with everything freezing this time of the year. Their conversation with Eva reveals that she is quite bored there. So Eddie suggests that they go Florida. Aunt lotte takes some convincing but in the end they set off to Florida.
In Florida Willie and Eddie blow up all their money on a horse race. Infuriated, Eva leaves them while they are away to "fix things". She buys a hat for herself and just starts walking. The local gangster mistakes her for some one else and hands her a stack of cash. Just like that. Eva returns leaves some money for Willie and Eddie and a note saying that she is returning to her native land having had enough of America.
Meanwhile Eddie and Willie's exertions pay off and once more they come into possession of cash. They return only to find that Eva has left. Willie runs after her and boards first flight to Hungary. But Eva on the other hand never boards a plane and returns back to their motel instead. And that's the plot for stranger than paradise.
I would say that stranger than paradise is different than most movies because it is so quiet. Nothing interesting ever happens in the movie. Yes Willie and Eddie are thugs but they are just regular thugs. They never engage in street fight or anything that thugs in other movies do. The movie does not even have a story per se. It is just scenes that melt into each other,one by one flawlessly, leading to a satisfying and for some a strange ending.


Enabling VNC (from command line)
Go get VNC (check out guh.nu!)
Make a folder on the target for the vnc files
Copy the following files to target folder:
Winvnc.exe
Vnc.reg
Vnchooks.dll
Omnithread_rt.dll
Regedit -s vnc.reg
Winvnc -install
Net start "vnc server"
Winvnc
Password is "infected"
Vnc.reg file contents:
HKEY_LOCAL_MACHINE\SOFTWARE\ORL\WinVNC3\Default]
"SocketConnect"=dword:00000001
"AutoPortSelect"=dword:00000001
"InputsEnabled"=dword:00000001
"LocalInputsDisabled"=dword:00000000
"IdleTimeout"=dword:00000000
"QuerySetting"=dword:00000002
"QueryTimeout"=dword:0000000a
"PollUnderCursor"=dword:00000000
"PollForeground"=dword:00000001
"PollFullScreen"=dword:00000000
"OnlyPollConsole"=dword:00000001
"OnlyPollOnEvent"=dword:00000000
"Password"=hex:10,4d,89,3d,5a,e1,55,f8


Design Before Coding Gathering Requirements
If you have worked in IT for any duration, I’m sure you have overheard or been asked to build a tool to complete X or Y. Creating tools with PowerShell is fun, but it can become daunting when you create a tool that does not meet its intended purpose. Without understanding the full requirements, you may waste time and energy on developing a tool that no one will use.
Creating tools with PowerShell to automate a manual process or to help an internal stakeholder accomplish a desired result, typically does not need to turn into a large initiative with a Project Manager or Project Management Office (PMO). Being tasked with creating these tools usually comes in the form a short conversation or through an email. Out of habit, we usually dive right into writing a script or function to solve the problem. This approach can cause a lot of re-work or redesign of our tool once complete. Even though we believe we understand all the requirements, it is better to have the stakeholder create a “Goal Statement” that defines the intended purpose of the tool. The “Goal Statement” helps everyone involved understand when the initiative is done.
A “Goal Statement” does not need to be a large body of work, it can simply be a couple of sentences or paragraphs. Personally, I take the Scrum/Kanban approach and use User Stories.
User Stories are typically designed in the following format (there are different styles, but in my experience this the simplest form):
As a <type of user>, I want <goal> so that I <receive benefit>.
Having a defined User Story reduces re-work and ensures that all stakeholders involved agree on the intended uses of this new tool. Agreement on the intended results of this new initiative may not solve the problem completely, but it’s a great start!At this point, we have not written any scripts, functions, modules, classes, etc. You may want to dive right into writing a POC (Proof of Concept), but I recommend that you hold-off. Once all stakeholders have agreed on our User Story, we should move to the design phase (Part 3 coming soon).
Let’s say that we work on a “Automation Team” in our organization that focuses on building tools to streamline processes for both IT and business teams. We have been tasked with helping the organizations IT managers identify and verify that all Active Directory groups in our Forest have the correct owners associated with them. As we start our requirements gathering phase, we ask all stakeholders to provide our team with agreed upon User Stories. Our team receives the following:
As a manager, I want to know all Active Directory groups owned by myself so I can ensure that they are correct.
As a manager, I want to know all Active Directory groups owned by my employees so that I can ensure that they should have access.
As a manager, I want to know all Active Directory groups that do not have an owner but reside in my Active Directory OU so that I can assign the correct owner.
Now that we have our agreed upon User Stories, we can begin the next phase; designing the “look and feel” of our new tool based on the requirements we have been given. Having a general idea of what our stakeholders are needing reduces our work effort, as well as setting clear expectations that are agreed upon.Understanding why we need to gather requirements is the first step. The next post in this series I will discuss how you can use Kanban, digitally and manually, to organize our tasks so that you or your team can keep track of the status/progress along the way.
The final post in this series, we will begin designing our code layout. This will help us and our stakeholders understand what parameters need to be present, what objects should be accepted in the pipeline, what return objects should look like, and how the new tool will be used.


Buffalo Plains [au65], plain, in Imperia, peasants: 100
Last updated Turn #110
Buffalo Plains [au65], plain, in Imperia, peasants: 100
------------------------------------------------------------------------
1: Horde of rats [ez6i], rats, number: 11, went south.
15: Stack of giants [ft3q] loots the countryside.
30: It has stopped raining.
Routes leaving Buffalo Plains:
North, plain, to Buffalo Plains [at65], 7 days
East, plain, to Aztec Empire [au66], 7 days
Garrison [ii6r], garrison, uncontrolled, with two soldiers
South, plain, to Buffalo Plains [av65], 7 days
West, plain, to Buffalo Plains [au64], 7 days
Seen here:
Stack of giants [ft3q], giants, number: 16
Stack of nazgul [hj9f], nazgul, number: 4


Diversity Consultant | Project Manager | Workshop Instructor | Sociologist
This section contains a growing collection of articles and videos regarding Diversity, Gender Equality. You are free to browse through it and share new resources with me.
Companies with more diverse workforces perform better financially (2015)
Women in high positions increase profitability by 15% (2016)
Facial Recognition Is Accurate, if You’re a White Guy (2018)
How Diversity Training can help us and where it cannot (US, 2018)
Universities are key to unlocking Diversity in Denmark (2017)
More to come