The Queen's GalleryBuckingham Palace
London, UK
The new Nash Gallery is the only major part of the new Queen’s Gallery which is within an existing part of the Palace. This was also part of Buckingham Palace that was hit by a bomb during WWII and is one of three pavilions which Nash designed at the corners of the Palace.
In order to tie in the design of the interior with the exterior of the pavilion, the new interior for the Gallery was inspired by Nash’s work. Nash's original picture gallery, designed for King George IV's outstanding collection of Dutch and Flemish paintings, still survives as part of the first floor rooms of the original Buckingham House. Its original ceiling, which featured hanging arches and glazed saucer domes, has however been lost.
Nash had also used his innovative ceiling in two other galleries, both now demolished, and the design of the new galleries recreates something of the poetry of these lost spaces. The large ceiling beams are carried on brackets richly adorned with acanthus leaves, echoing those by Nash found elsewhere in the Palace.
The Queen's GalleryBuckingham Palace
London, UK
The double height entrance hall has a glazed ceiling, with a lattice of dark red glazing bars. This diffuses sunlight and is designed to be reminiscent of ancient Roman transcenae.
The interior is intended to have the feel of an ancient hall. The columns within the hall are based on those at the Temple of Hera at Paestum, one of the earliest known Doric buildings. Together with the Homeric friezee, specially commissioned for this room, the hall makes reference to the origins of western art, an appropriate allusion for the entrance to an art gallery.
The Queen's GalleryBuckingham Palace
London, UK
High above the columns, the two long side walls feature two great figured friezes depicting scenes from Homer’s Illiad and the Odyssey. These were especially commissioned for the building from the Scottish sculptor, Alexander Stoddart and are an allegorical representation of the reign of HM Queen Elizabeth II. Stoddart also created the two winged figures either side of the entrance doors to the Gallery. These represent the two cherubim from the Ark of the Covenant and are a reference to the Coronation Liturgy.
The Queen's GalleryBuckingham Palace
London, UK
The stair hall features a polychromatic ceiling and green Ionic scagliola columns designed to draw visitors to the main gallery level above. It features a rich honey-coloured Ham Hill Stone for the walls that contrasts with the Portland Stone of the stairs and the York stone of the floors. The doors around the landing, which give access to the Lecture Hall and Education Room, are of a red polished mahogany. The stair balustrade is in cast bronze with guilt wrought iron ropework and a mahogany handrail.
The Queen's GalleryBuckingham Palace
London, UK
The Pennethorne Gallery has an elaborate tripartite top lit plaster ceiling. Like the two other main galleries, the Chambers Gallery and the Nash Gallery, its walls are hung with an Isle of Bute wool fabric which allows exhibits to be hung on the walls without causing unsightly marks that need to be repaired between exhibitions. Here the fabric is in a vivid green colour, with a deep skirting of polished black marble. This room has been designed to exhibit paintings, furniture and other works of art from the Royal Collection, to be seen as they would be in a Palace room. Two small Cabinet Rooms lead off this space. These contain specially designed cases which allow for the exhibition of small objects, such as miniatures, porcelain, silver and jewellery.
The Queen's GalleryBuckingham Palace
London, UK
The Chambers Gallery sits parallel to the Pennethorne Gallery and is designed primarily for exhibiting works of art on paper. For this reason, it is designed with no natural light and with a series of matching partitions and cases that can be used in various combinations to suit different exhibition layouts. The Gallery may also be used to display a range of other objects including porcelain, fabergé and bronzes. For conservation reasons, the gallery is artificially lit, using fittings which are discreetly hidden within plaster rosettes. This technique is repeated in the other galleries, cleverly marying decoration with a modern technological role.
The Queen's GalleryBuckingham Palace
London, UK
The new Nash Gallery is the only major part of the new Queen’s Gallery which is within an existing part of the Palace. This was also part of Buckingham Palace that was hit by a bomb during WWII and is one of three pavilions which Nash designed at the corners of the Palace.
In order to tie in the design of the interior with the exterior of the pavilion, the new interior for the Gallery was inspired by Nash’s work. Nash's original picture gallery, designed for King George IV's outstanding collection of Dutch and Flemish paintings, still survives as part of the first floor rooms of the original Buckingham House. Its original ceiling, which featured hanging arches and glazed saucer domes, has however been lost.
Nash had also used his innovative ceiling in two other galleries, both now demolished, and the design of the new galleries recreates something of the poetry of these lost spaces. The large ceiling beams are carried on brackets richly adorned with acanthus leaves, echoing those by Nash found elsewhere in the Palace.
The Queen's GalleryBuckingham Palace
London, UK
The vestibule with the busts of the founders is located between the stair hall, the galleries and the lecture room. It is defined by two linked spaces with pendentive domes and reconciles conflicting circulation routes as well as accommodating a change in floor level between the galleries and the lecture room.
The Queen's GalleryBuckingham Palace
London, UK
The lecture hall is a large cruciform room defined by four pairs of columns bearing capitals adorned with lotus leaves inspired by those at Pergamon in Asia Minor. These also echo the iron columns with palm leaf capitals in Nash's Great Kitchen at the Royal Pavilion Brighton. The link with the kitchens being that the lecture room was created from the upper part of the great kitchen at the Palace. The ceiling in the kitchen was lowered taking advantage of the new air conditioning introduced into the kitchen areas.
The Queen's GalleryBuckingham Palace
London, UK
The downstand beams in the ceiling of the gallery conceal service walkways which provide access to the light fittings from above. This allows for the maintenance of the roof lights and the lighting system to be carried out without disturbing the exhibition below. The intensity of the natural light is controlled by louvres on the exterior of the rooflights. The artificial lighting operates within zones which are allocated in between the plasterwork detailing in the vaulted section of the ceiling.
The Queen's GalleryBuckingham Palace
London, UK
The design of the stair hall was intended to contrast with the contrasting feel of the main entrance. It features free standing Ionic columns in green scagliola which carry a frieze crowned by an anthemion cornice. The Ionic order is based on that at the Erechtheion which links the design back to the design of the entrance portico. The richly coloured ceiling with its vigorous diagonal coffering is intended to lure the visitor up the stairs to the main level of the galleries. The graceful bronze banisters incorporate cast anthemion ornament and recall the staircase at The Altes Museum, a gallery open to the public, designed by Schinkel in 1832 in Berlin, to house The German Royal Collection.
The Queen's GalleryBuckingham Palace
London, UK
The graceful bronze banisters incorporating anthemion ornament recall the staircase at the Altes Museum, Berlin, which was designed in 1823 by Schinkel to house the German Royal Collection and is also open to the public. The cast bronze of the main banisters has been interlaced with gilded wrought iron rope work and tassels so as to ensure that the balustrade conforms to current Building Regulations.
The Queen's GalleryBuckingham Palace
London, UK
The addition of the Queen’s Gallery is the largest building intervention at Buckingham Palace since the great ballroom was built for Queen Victoria in the 1830’s.
The Palace is one of London’s most prominent landmarks and is a building which is central to Britain’s national identity and a focal point for tourism.
The new Queen’s Gallery was built to mark the Golden Jubilee of Her Majesty Queen Elizabeth II in 2002. The new gallery does not merely replace the former gallery built in 1962 but is an entirely new development providing almost four times as much gallery space as before in a new complex of rooms. This establishes a major new centre for the visual arts in the heart of London which is provided with the most up-to-date museological services for the conservation and display of works of art of all kinds. The new building has been built in Portland and Bath stone and provides a new entrance Portico to the Palace off Buckingham Palace Road. It has been designed within the same tradition as the historic building, thus maintaining the continuity and tradition of the Palace.
The building was opened by H M Queen Elizabeth II in May 2002. The project has received a number of awards, including the Royal Institute of British Architects award, 2003, The Royal Fine Arts Commission Building of the Year award, 2003 and the Best Modern Classical building, 2004 from the Georgian Group.
The Queen's GalleryBuckingham Palace
London, UK
The main architectural challenge in the design of the shop was the limited floor to ceiling height of the car park. A series of domes and vaults were created to provide the illusion of height. It allowed specific areas to be defined within the shop whilst keeping the space as open as possible for circulation and the display of merchandise. The overall design of the shop, together with the display cabinets and furniture, was carried out by John Simpson Architects. The shop, for the Royal Collection Enterprises, sells a variety of merchandise, including books, jewellery, porcelain and posters.
The Queen's GalleryBuckingham Palace
London, UK
The main architectural challenge in the design of the shop was the limited floor to ceiling height of the car park. A series of domes and vaults were created to provide the illusion of height. It allowed specific areas to be defined within the shop whilst keeping the space as open as possible for circulation and the display of merchandise. The overall design of the shop, together with the display cabinets and furniture, was carried out by John Simpson Architects. The shop, for the Royal Collection Enterprises, sells a variety of merchandise, including books, jewellery, porcelain and posters.
The Queen's GalleryBuckingham Palace
London, UK
The lecture hall is a large cruciform room defined by four pairs of columns bearing capitals adorned with lotus leaves inspired by those at Pergamon in Asia Minor. These also echo the iron columns with palm leaf capitals in Nash's Great Kitchen at the Royal Pavilion Brighton. The link with the kitchens being that the lecture room was created from the upper part of the great kitchen at the Palace. The ceiling in the kitchen was lowered taking advantage of the new air conditioning introduced into the kitchen areas.
The Queen's GalleryBuckingham Palace
London, UK
The design for the private chapel for the Sovereign at Buckingham Palace is not only reminiscent of John Nash's work with its shallow dome, arches revealing niches, and elegant polychromy, but the chapel’s subtle grandeur truly unfolds with its many layers of space as the perfect setting for reverence.


Comprehension Question
Question ID
Question Type
Reading
Answer
Descript English
Description Tamil
Description Sinhala
ADD
UPDATE
DELETE


Recent News
1
JBB has recently undergone a major website re-design. We appreciate your patience, and look forward to receiving your !
2
The Submission System is live. We are now accepting manuscripts via Avestia Manuscript Submission System (AMSS). Please visit the Submit a Manuscript page for more details!
Indexed by: Google Scholar, Microsoft Academic Search, Open J-Gate, Mendeley, and Genomics JournalSeek.
Editor-in-Chief: Dr. Keikhosro Karimi,
Isfahan University of Technology, Iran.
Most Recent Articles
Isolation of Cellulolytic Organisms from the Gut Contents of Termites Native to Nepal and Their Utility in Saccharification and Fermentation of Lignocellulosic BiomassDinita Sharma, Bishnu Joshi, Megh Raj Bhatt, Jarina Joshi, Rajani Malla, Tribikram Bhattarai, Lakshmaiah Sreerama
Neem Biodiesel - A Sustainability StudyA. C. Lokesh, N. S. Mahesh, Balakrishna Gowda, Rajesh Kumar K, Peter White
Increasing Ethanol Titer and Reducing Enzyme Dosage via Fed-Batch, Simultaneous Saccharification and Fermentation in a High Solids BioreactorNichole A. Bauer, Craig C. Long, Bishnu Karki, William R. Gibbons
Analysis and Environmental Assessment of Biomass and Biofuels Usage PossibilitiesVytautas Kucinskas, Algirdas Jasinskas, Egle Jotautiene
Ash Analysis of Poultry Litter, Willow and Oats for Combustion in BoilersBimal Acharya, Animesh Dutta, Shohel Mahmud, Mohammad Tushar, Mathilias Leon


Ramsey double leads Wales to Euro 2020
by BeSoccerAaron Ramsey scored twice to lead Wales to Euro 2020 with a 2-0 victory over Hungary in Cardiff on Tuesday.
The Juventus midfielder struck early in both halves to ensure Ryan Giggs's men secured second place in Group E behind World Cup finalists Croatia.
Wales reached the semi-finals of the European championships in 2016 and while matching that run next year will be a huge ask, there was a glimmer of what they are capable of with Ramsey restored alongside Gareth Bale. Ramsey was making his first start of the qualifying campaign due to a series of injuries. And he made an immediate impact by charging into the box to meet Bale's inch-perfect cross to settle the home side's nerves on 15 minutes.
Featured links
- Pochettino sacked as Tottenham manager
- The latest football transfers news and rumours
- Who has the most free-kicks goals: Messi or Cristiano?
- Luis Enrique returns to Spain national team
Wales still needed a moment of magic at the other end of the field as an incredible double save from Wayne Hennessey denied Dominik Szoboszlai and Roland Sallai an equaliser as Hungary threatened before the break. However, there was no way back for the visitors once Ramsey controlled Kieffer Moore's knockdown to smash home from close range two minutes into the second half.
From then on Wales were rampant and could easily have added to their advantage as Bale curled a free-kick inches wide before Daniel James also saw a powerful effort drift just off target. Only a fine save from Peter Gulacsi denied Ramsey his first international hat-trick 15 minutes from time.
But roared on by a vociferous home support, Wales rarely looked troubled as they produced arguably their best performance since Giggs took charge two years ago at the best possible time. The former Manchester United winger has had his critics since succeeding Chris Coleman, but can now look forward to leading his country at a major international tournament, a feat he never achieved during a decorated playing career.


{% extends "goals/base.html" %} {% load static from staticfiles %} {% load crispy_forms_tags %} {% load util_tags %} {% load util_filters %} {% block title %}Debug Progress{% endblock %} {% block head %} {{ block.super }} {% endblock %} {% block breadcrumbs %}
Display data for the past: {% if days_ago != 30 %}30{% else %}30{% endif %} {% if days_ago != 60 %}60{% else %}60{% endif %} {% if days_ago != 90 %}90{% else %}90{% endif %} days.
{# --- UserCompletedActions --- #}The following chart shows the total number of Actions that were snoozed, dismissed, or completed for all users enrolled in this package over the past {{ days_ago }} {{days_ago|pluralize:"day"}}.
This chart displays the number of users that last accessed the app during a given period of time.


Download data from the European Social Survey directly from their website <http://www.europeansocialsurvey.org/>. There are two families of functions that allow you to download and interactively check all countries and rounds available.
| Version: | 1.0.2 |
| Depends: | R (≥ 3.4.0) |
| Imports: | xml2, httr, stringr, haven, rvest |
| Suggests: | testthat, knitr, rmarkdown, covr |
| Published: | 2018-08-23 |
| Author: | Jorge Cimentada [aut, cre], Thomas Leeper [rev] (Thomas reviewed the package for rOpensci,see https://github.com/ropensci/onboarding/issues/201), Nujcharee Haswell [rev] (Nujcharee reviewed the package for rOpensci, see https://github.com/ropensci/onboarding/issues/201) |
| Maintainer: | Jorge Cimentada <cimentadaj at gmail.com> |
| BugReports: | https://github.com/ropensci/essurvey/issues |
| License: | MIT + file LICENSE |
| URL: | https://github.com/ropensci/essurvey, https://ropensci.github.io/essurvey/ |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | essurvey results |
| Reference manual: | essurvey.pdf |
| Vignettes: |
Using essurvey for R and Stata users |
| Package source: | essurvey_1.0.2.tar.gz |
| Windows binaries: | r-devel: essurvey_1.0.2.zip, r-release: essurvey_1.0.2.zip, r-oldrel: essurvey_1.0.2.zip |
| OS X binaries: | r-release: essurvey_1.0.2.tgz, r-oldrel: essurvey_1.0.2.tgz |
| Old sources: | essurvey archive |
Please use the canonical form https://CRAN.R-project.org/package=essurvey to link to this page.


|
Figure 1
|
C=O cleavage in CO 2 mediated by well‐defined late 3d metal ... |
|
Figure 2
|
Solid‐state molecular structure of 1‐σ (left); 24 ellipsoids ... |
|
Figure 3
|
Solid‐state molecular structure of 2; 24 ellipsoids are draw ... |
|
Figure 4
|
Solid‐state molecular structures of 3‐σ and 3‐π; 24 ellipsoi ... |


Consultant, Trainer, Contributor.
Not at the code level
Automatic application interaction
Ensure correct behaviour
Analyse performances and limitations
Optimise and check for regression
Identify critical scenarios
For HTTP: ApacheBench
, Siege
, …
And for the others ?It depends 😄
RFC6455
released in 2011
Full-Duplex: Client to server and server to client
« Just » a protocol, language agnostic
Only transfer data when useful
Different paradigm, different problems
Memory management, long running process, shared state between clients…
« Just » simulate client interaction
artillery.io
Open source & easy-to-use performance testing toolkit.
# Install
npm install artillery
# Verify it works
npm exec artillery dino
------------
< Artillery! >
------------
\
__
/ _)
_/\/\/\_/ /
_| /
_| ( | ( |
/__.-'|_|--|_|
config:
target: "https://example.org/"
phases:
#…
scenarios:
- name: "Look at some page"
flow:
- get:
url: "/"
How much « users » for how long…
config:
#[...]
phases:
- duration: 5
arrivalRate: 5
rampTo: 10
name: "Say hello"
#[...]
Elapsed time: 5 seconds
Scenarios launched: 25
Scenarios completed: 25
Requests completed: 25
Mean response/sec: 4.75
Response time (msec):
min: 425.7
max: 711.9
median: 428.7
p95: 665.5
p99: 711.9
Codes:
200: 25
config:
target: "wss://echo.wss-websocket.net"
phases:
- duration: 5
arrivalRate: 5
scenarios:
- engine: ws
flow:
- send: "hello"
- think: 1
- send: "world"
Processor
Enrich artillery with your own code.
Hooks (http): beforeRequest
,afterResponse
,{before,after}Scenario
Your function as step
config:
processor: "./my-functions.js"
scenarios:
- flow:
- function: doSomething
- send: "hello"
JavaScript
module.exports = {
doSomething: doSomething
}
function doSomething(context, ee, next) {
context.ws /* <= Actual WebSocket connection */
/* MUST be called for the scenario to continue */
return next();
}
config:
target: "wss://echo.wss-websocket.net"
variables:
httpUrl: http://localhost:8000
environments:
staging:
target: "wss://custom.staging.url"
variables:
httpUrl: https://example.org/
prod:
target: "wss://custom.staging.url"
variables:
httpUrl: https://example.com/
npm exec artillery run -e staging
Clearly define tests steps
Configure and adapt per environment
Well documented !
Hooks and context during execution
npm exec artillery run file.yaml
Runtime flags for grained control (-e
, -v
, …)
There are no real users 🤖
Scenarios are just sequence of tasks
Not easy to act on received message
https://artillery.io/docs/guides/overview/welcome.html
@s_hulard
https://github.com/shulard/ipc-websocket-artillery


There's a Hollow Knight Piano Collection album on the way, and it sounds beautiful
Seer preview right here.
by Imogen BeckhellingMateria Collective, the video game music publisher behind the Undertale Piano Collections, has partnered with Team Cherry to create the Hollow Knight Piano Collections, an album featuring 15 of the game's iconic soundtracks.
Music created by Hollow Knight's composer Christopher Larkin has been rearranged by David Peacock, who has worked previously work with renowned game composers Austin Wintory and Gareth Coker. The tracks are performed by Augustine Mayuga Gonzales, who has worked on albums for Undertale, Stardew Valley and Hyper Light Drifter.
Tracks include themes for Dirtmouth, the City of Tears, Hornet, the Forgotten Crossroads and more - here's a preview for one of my personal favourites, Greenpath:
"Working on Hollow Knight Piano Collections has been a deeply rewarding experience," Peacock said. "My goal was to put together a selection of arrangements that both compliment the original material, and are expanded upon by the qualities and aesthetic of the piano performance. Enter the world of Hallownest as conveyed by my pianistic reinterpretation of Christopher Larkin's brilliant score."
Hollow Knight Piano Collections will be available digitally, as well as on CD and vinyl from the Materia shop on 28th November, and pre-orders are open right now.
If you want to have a go at performing the tracks yourself, there's even some sheet music on the way too, which will be available early 2020.


|
DeBox Analytics
|
An IAnalyticsManager that proxies several subordinate IAnalyticsManagers More...
Public Member Functions | |
| AnalyticManagerGroup (params IAnalyticsManager[] internalManagers) | |
| Create a new 'strict' AnalyticManagerGroup that contains the specified IAnalyticManagers More... | |
| AnalyticManagerGroup (bool isStrict, params IAnalyticsManager[] internalManagers) | |
| Create a new AnalyticManagerGroup that contains the specified IAnalyticManagers More... | |
| void | Initialize () |
| Initialize all the contained managers More... | |
| void | Identify (string id) |
| Identify the tracked account. More... | |
| void | Increment (string attribute, int value) |
| Perform Increment on all contained managers More... | |
| void | Increment (string attribute, float value) |
| Perform Increment on all contained managers More... | |
| void | Set (string attribute, object value) |
| Perform Set on contained managers More... | |
| void | SetOnce (string attribute, object value) |
| Perform SetOnce on contained managers More... | |
| void | AddToList (string attribute, params object[] values) |
| Perform AddToList on contained managers More... | |
| void | UnionList (string attribute, params object[] values) |
| Perform UnionList on contained managers More... | |
| void | IntersectList (string attribute, params object[] values) |
| Perform IntersectList on contained managers More... | |
| void | RemoveFromList (string attribute, params object[] values) |
| Perform RemoveFromList on contained managers More... | |
| void | TrackEvent (string eventName) |
| Perform TrackEvent on contained managers More... | |
| void | TrackEvent (string eventName, Dictionary< string, object > attributes) |
| Perform TrackEvent on contained managers More... | |
| void | SetTrackingAttribute (string attributeName, object value) |
| Perform SetTrackingAttribute on contained managers More... | |
| void | SetTrackingAttributeOnce (string attributeName, object value) |
| Perform SetTrackingAttributeOnce on contained managers More... | |
| void | TrackRevenue (string product, int quantity, float price) |
| Perform TrackRevenue on contained managers More... | |
| void | Flush () |
| Perform Flush on all contained managers More... | |
| bool | SupportsFeature (AnalyticsFeatureType feature) |
| Tells if any of the contained managers in the group support this feature More... | |
Properties | |
| bool | IsStrict [get] |
An IAnalyticsManager that proxies several subordinate IAnalyticsManagers
Illustration of an AnalyticManagerGroup that sends to both DebugAnalyticsManager and MixPanelAnalyticsManager
Usage:
Definition at line 39 of file AnalyticManagerGroup.cs.
| DeBox.Analytics.AnalyticManagerGroup.AnalyticManagerGroup | ( | params IAnalyticsManager[] | internalManagers | ) |
Create a new 'strict' AnalyticManagerGroup that contains the specified IAnalyticManagers
Strict groups will demand all contained managers will support all the performed operations or the operation will fail.
For example, in a strict group that contains two managers, one of which does not support AddToList, performing AddToList on the group will raise a NotImplementedException
| internalManagers | Collection of IAnalyticsManagers to contain in the group |
Definition at line 54 of file AnalyticManagerGroup.cs.
| DeBox.Analytics.AnalyticManagerGroup.AnalyticManagerGroup | ( | bool | isStrict, |
| params IAnalyticsManager[] | internalManagers | ||
| ) |
Create a new AnalyticManagerGroup that contains the specified IAnalyticManagers
| internalManagers | Collection of IAnalyticsManagers to contain in the group |
| isStrict | If strict is true, the group will demand all contained managers will support all the performed operations or the operation will fail. |
For example, in a strict group that contains two managers, one of which does not support AddToList, performing AddToList on the group will raise a NotImplementedException
If the group is not strict, then the group only sends the operations to the contained managers that support them, allowing us to build one full-featured analytics manager that is made out of several sub managers that each only supports part of the features.
Definition at line 71 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.AddToList | ( | string | attribute, |
| params object[] | values | ||
| ) |
Perform AddToList on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountAddToList If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountAddToList
| attribute | Name of attribute to set |
| values | Values to add |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountAddToList If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountAddToList |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 209 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Flush | ( | ) |
Perform Flush on all contained managers
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 353 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Identify | ( | string | id | ) |
Identify the tracked account.
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountTracking If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountTracking
| id | Account Id |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountTracking If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountTracking |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 124 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Increment | ( | string | attribute, |
| float | value | ||
| ) |
Perform Increment on all contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountIncrement If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountIncrement
| attribute | Name of attribute to increment |
| value | Value to add |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountIncrement If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountIncrement |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 158 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Increment | ( | string | attribute, |
| int | value | ||
| ) |
Perform Increment on all contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountIncrement If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountIncrement
| attribute | Name of attribute to increment |
| value | Value to add |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountIncrement If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountIncrement |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 141 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Initialize | ( | ) |
Initialize all the contained managers
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 108 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.IntersectList | ( | string | attribute, |
| params object[] | values | ||
| ) |
Perform IntersectList on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountIntersectList If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountIntersectList
| attribute | Name of attribute |
| values | Values to intersect with |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountIntersectList If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountIntersectList |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 243 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.RemoveFromList | ( | string | attribute, |
| params object[] | values | ||
| ) |
Perform RemoveFromList on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountRemoveFromList If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountRemoveFromList
| attribute | Name of attribute |
| values | Values to remove |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountRemoveFromList If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountRemoveFromList |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 260 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.Set | ( | string | attribute, |
| object | value | ||
| ) |
Perform Set on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountSet If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountSet
| attribute | Name of attribute to set |
| value | Value to set |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountSet If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountSet |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 175 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.SetOnce | ( | string | attribute, |
| object | value | ||
| ) |
Perform SetOnce on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountSetOnce If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountSetOnce
| attribute | Name of attribute to set |
| value | Value to set |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountSetOnce If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountSetOnce |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 192 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.SetTrackingAttribute | ( | string | attributeName, |
| object | value | ||
| ) |
Perform SetTrackingAttribute on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.SetGlobalEventAttribute If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.SetGlobalEventAttribute
| attributeName | Name of attribute |
| value | Attribute value to set |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.SetGlobalEventAttribute If the group is not strict - indicates no managers support AnalyticsFeatureType.SetGlobalEventAttribute |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 310 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.SetTrackingAttributeOnce | ( | string | attributeName, |
| object | value | ||
| ) |
Perform SetTrackingAttributeOnce on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.SetGlobalEventAttributeOnce If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.SetGlobalEventAttributeOnce
| attributeName | Name of attribute |
| value | Attribute value to set |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.SetGlobalEventAttributeOnce If the group is not strict - indicates no managers support AnalyticsFeatureType.SetGlobalEventAttributeOnce |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 327 of file AnalyticManagerGroup.cs.
| bool DeBox.Analytics.AnalyticManagerGroup.SupportsFeature | ( | AnalyticsFeatureType | feature | ) |
Tells if any of the contained managers in the group support this feature
| feature | Type of the analytics feature |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 363 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.TrackEvent | ( | string | eventName | ) |
Perform TrackEvent on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.NamedEvents If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.NamedEvents
| eventName | Name of event |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.NamedEvents If the group is not strict - indicates no managers support AnalyticsFeatureType.NamedEvents |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 276 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.TrackEvent | ( | string | eventName, |
| Dictionary< string, object > | attributes | ||
| ) |
Perform TrackEvent on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.NamedEventsWithNamedAttributes If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.NamedEventsWithNamedAttributes
| eventName | Name of event |
| attributes | Attributes to set for the event |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.NamedEventsWithNamedAttributes If the group is not strict - indicates no managers support AnalyticsFeatureType.NamedEventsWithNamedAttributes |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 293 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.TrackRevenue | ( | string | product, |
| int | quantity, | ||
| float | price | ||
| ) |
Perform TrackRevenue on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.RevenueTracking If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.RevenueTracking
| product | The id or name of the product |
| quantity | Amount purchased |
| price | Total revenue gained |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.RevenueTracking If the group is not strict - indicates no managers support AnalyticsFeatureType.RevenueTracking |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 345 of file AnalyticManagerGroup.cs.
| void DeBox.Analytics.AnalyticManagerGroup.UnionList | ( | string | attribute, |
| params object[] | values | ||
| ) |
Perform UnionList on contained managers
If the group is strict - all contained managers must support the AnalyticsFeatureType.AccountUnionList If the group is not strict - at least one contained manager must support the AnalyticsFeatureType.AccountUnionList
| attribute | Name of attribute |
| values | Values to union with |
| NotImplementedException | If the group is strict - indicates at least one manager does not support AnalyticsFeatureType.AccountUnionList If the group is not strict - indicates no managers support AnalyticsFeatureType.AccountUnionList |
Implements DeBox.Analytics.IAnalyticsManager.
Definition at line 226 of file AnalyticManagerGroup.cs.


Emotional Intelligence
Emotional intelligence is the ability to recognise, understand and channel your emotions and those of the people around you. It is the way we navigate through our human world, interacting with others, and understanding ourselves.
The 5 element model for EQ was proposed by Daniel Goleman:
Self-Awareness;
The ability to recognize and understand your own emotions” (Cherry, 2018b). Self awareness is incredibly important as it is the building block on which we build the other aspects of EQ
Self-Regulation;
This is one step further, self-regulation is the ability to manage and express our own emotions
Motivation;
People with high EQs tend to be driven more be intrinsic reasoning than by outside validation
Empathy;
The ability to understand what others are feeling and why. Not to validate these emotions but simply to be aware of how they feel and why.
Social Skills.
The ability to interact with others effectively to achieve your goals.
How is it different to IQ?
IQ is the measure of intelligence associated more with logic, reasoning and abstraction. IQ is useful for solving problems but EQ is important on a broader level. EQ handles day to day interactions both with others and with ourselves. While it is important to be able to solve a problem with brute intelligence, it is also incredibly important to be able to handle the more human problems in life. problems such as knowing when you’re burning out, knowing why something is frustrating you, understanding why you’re not working well with colleagues, knowing how to cheer yourself up, knowing how to get others to buy into an idea. All of these problems are within the domain of emotional intelligence.
While you can use your IQ to solve academic problems, there are far more aspects to life that require navigation. Without EQ we are stranded and unable to use our IQ usefully, let alone function well in society.


The predicates bb_inf/[3,5]
implement a simple Branch and
Bound search algorithm for Mixed Integer Linear (MIP) Optimization
examples. Serious MIP is not trivial. The implementation
library('clpqr/bb.pl')
is to be understood as a starting point
for more ambitious users who need control over branching, or who want to
add cutting planes, for example.
Anyway, here is a small problem from miplib, a collection of MIP models, housed at Rice University:
NAME: flugpl ROWS: 18 COLUMNS: 18 INTEGER: 11 NONZERO: 46 BEST SOLN: 1201500 (opt) LP SOLN: 1167185.73 SOURCE: Harvey M. Wagner John W. Gregory (Cray Research) E. Andrew Boyd (Rice University) APPLICATION: airline model COMMENTS: no integer variables are binary
% library('clpqr/examples/mip')example(flugpl, Obj, Vs, Ints, []) :- Vs = [ Anm1,Anm2,Anm3,Anm4,Anm5,Anm6, Stm1,Stm2,Stm3,Stm4,Stm5,Stm6, UE1,UE2,UE3,UE4,UE5,UE6], Ints = [Stm6, Stm5, Stm4, Stm3, Stm2, Anm6, Anm5, Anm4, Anm3, Anm2, Anm1], Obj = 2700*Stm1 + 1500*Anm1 + 30*UE1 + 2700*Stm2 + 1500*Anm2 + 30*UE2 + 2700*Stm3 + 1500*Anm3 + 30*UE3 + 2700*Stm4 + 1500*Anm4 + 30*UE4 + 2700*Stm5 + 1500*Anm5 + 30*UE5 + 2700*Stm6 + 1500*Anm6 + 30*UE6, allpos(Vs), { Stm1 = 60, 0.9*Stm1 +1*Anm1 -1*Stm2 = 0, 0.9*Stm2 +1*Anm2 -1*Stm3 = 0, 0.9*Stm3 +1*Anm3 -1*Stm4 = 0, 0.9*Stm4 +1*Anm4 -1*Stm5 = 0, 0.9*Stm5 +1*Anm5 -1*Stm6 = 0, 150*Stm1 -100*Anm1 +1*UE1 >= 8000, 150*Stm2 -100*Anm2 +1*UE2 >= 9000, 150*Stm3 -100*Anm3 +1*UE3 >= 8000, 150*Stm4 -100*Anm4 +1*UE4 >= 10000, 150*Stm5 -100*Anm5 +1*UE5 >= 9000, 150*Stm6 -100*Anm6 +1*UE6 >= 12000, -20*Stm1 +1*UE1 =< 0, -20*Stm2 +1*UE2 =< 0, -20*Stm3 +1*UE3 =< 0, -20*Stm4 +1*UE4 =< 0, -20*Stm5 +1*UE5 =< 0, -20*Stm6 +1*UE6 =< 0, Anm1 =< 18, 57 =< Stm2, Stm2 =< 75, Anm2 =< 18, 57 =< Stm3, Stm3 =< 75, Anm3 =< 18, 57 =< Stm4, Stm4 =< 75, Anm4 =< 18, 57 =< Stm5, Stm5 =< 75, Anm5 =< 18, 57 =< Stm6, Stm6 =< 75, Anm6 =< 18 }. allpos([]). allpos([X|Xs]) :- {X >= 0}, allpos(Xs).
We can first check whether the relaxed problem has indeed the quoted infimum:
clp(r) ?- example(flugpl, Obj, _, _, _), inf(Obj, Inf). Inf = 1167185.7255923203
Computing the infimum under the additional constraints that Stm6
,
Stm5
, Stm4
, Stm3
, Stm2
, Anm6
,
Anm5
, Anm4
, Anm3
, Anm2
, Anm1
assume
integer values at the infimum is computationally harder, but the
query does not change much:
clp(r) ?- example(flugpl, Obj, _, Ints, _), bb_inf(Ints, Obj, Inf, Vertex, 0.001). Inf = 1201500.0000000005, Vertex = [75.0,70.0,70.0,60.0,60.0,0.0,12.0,7.0,16.0,6.0,6.0]


Currencies: {{currency.name}} ({{currency.symbol}})
Lat, Long: {{selectedCountry.latlng}}
Land Area: {{selectedCountry.area | number}} km2


-
Jugando con FriendFeed y Appengine: tv-sms.appspot.com
INTRODUCCIÓN …
-
Things I miss in PHP: Function decorators
The problem: …
-
An idea for calling PostgreSQL's stored procedures with PDO
As far as I know PDO doesn’t allow to call directly the PostgreSQL’s strored procedures. That’s not a problem. We can create a SQL and call a stored procedures as simple sql. …
-
Should we use our own frameworks in a production system?
Some days ago I read an article called why every developer should write their own framework. It’s an interesting post and everybody are agree with the author. Build a framework is a good way to learn other frameworks.  It’s also good see the code of other frameworks to see the differences. Definitely I am fully agree with Brandon. …
-
Moving singleton and factory patterns to Abstract with php 5.3
I have built a backend library. I have a tree of classes and i want to use singleton and factory patterns to my class set. Easy isn’t it? …
-
Soy rico
Lunes 7:00. Suena el despertador. Normalmente cuando suena el despertador es el peor momento del día. Hoy encima me ha sentado especialmente mal (lunes, vacaciones recientes, …). Llego a la oficina, miro el correo y me encuentro con esto: …
-
antivirus
Acabo de recibir un correo con propaganda de un antivirus. Es una lástima que no use antivirus porque el producto tiene una pinta buenísima. Literal copiado del correo: …
-
Server side web frameworks are dead
Server side web frameworks are dead. Long life to client side web frameworks. Struts, JSF, Spring, Ruby on Rails, Cake, Symfony … (even my framework in PHP ;) ) as full stack web framework are dead. Logic is moving to the client side. Javascript, the language used as deadly weapon in the browser wars nowadays is the key of the web. Server logic is getting thin. A thin server side framework serving JSON (Zend Framework is really cool for this) plus a good and strong client side framework such as Dojo or ExtJs with a good widget set with all the application logic can be the new parading of web develop. …
-
Speed up page load with asynchronous javascript
JavaScript an important part of or web applications. Normally or web is not usable until js is full loaded. Almost all js framework implements an event to notice when the js is ready (dojo.addOnLoad(); $(function() {});) and the page is usable. The page is usable when js is loaded. Sometimes if you are working with dojo you need all js and maybe is better to create an splash screen until all is loaded. But sometimes your app don’t need all js to be usable. I give you a example: I’ve been working in a project with jQuery. I load jQuery library from google cdn …
-
mixin dojo and google api libraries
I’m working in a dojo application and I also need to use some goolge api like feeds, maps and books. Dojo is very versatile adding new components using dojo.require. when all dojo components are loaded dojo.addOnLoad callback is fired. …
-
fetching book cover with google API and dojo
I want to put the cover of one book into my dojo application. I can use amazon Web service but google API has a nice JSONP interface and also google API uses ISBN instead ASIN to fetch book info and for me is easier to know the ISBN (it is in the first page of every book). I have a previous post explaining how to use use JSONP with javascript, but now I want to do the same in a dojo-way using dojo.io.script.get …
-
Consuming external javascript services with Dojo
I want to include goggle’s GSbookBar in one dokjo application. Unfortunately this API doesn’t have a JSONP interface. I need to include one external js file and use GSbookBar object. It’s really simple but I want to so something different. The book bar appears only in one pop up of one tab in my application. It isn’t a main part so I don’t want to load the external script every time the user loads the application. …
-
virus letal
He recibido un aviso muy importante: …
-
killall firefox-bin
As a web developer firefox is my only choice. I need other browser to test my applications but I can’t live without firebug. I now there are other firebug-clone for other browsers but firebug is the number one. …
-
dojo.hitch
The first time I read about dojo.hitch I didn’t understand anything. I read in a book dojo.hitch is a very important function and widely used into dojo library but I didn’t understand why. I am using my learning of dojo to improve my skill in javascript. I remember the time when I hate javascript. I thought it was a very poor program language and everything I need to do with js was a nightmare. If browser was Netscape one way to to do one thing, if browser was IE other (of a other and a couple of hacks). But the times have changed. XHR and Ajax has reinvented the web. Web pages had became into Web Applications. Asynchronous request had opened our minds to a new generation of web applications, and all of it is thanks to javascript. Each day I spent learning js I see how much I was wrong. …
-
nslu2 installation
I need to change the HDD of my Linksys NSLU2 so I will use the opportunity to write a small HowTo to show how to set up an unslung firmware into my nslu2. Let’s start …
-
Dojo and custom widgets
I want to extend Dojo library with some custom widgets. Dojo widgets are really cool. You can use them from JavaScript and from HTML with the Dojo markup. …
-
Dojo series
I will start a new series of posts based on my experiences learning Dojo. This is not a tutorial of Dojo. Those posts want to help me to get new skills. The learning of Dojo is a bit frustrating sometimes. When you have written a dozens of source code and you realized all its wrong and that isn’t the Dojo way of doing this and you need to rewrite all. But you feel really happy when your widget appear on the browser. I have in my mind some post-project now and I hope I will post them soon …
-
Cambio de Blog
Es oficial. Me paso de blogger a wordpress. Empezé a usar bloggger no se muy bien porque. Es fácil de usar, un par de clicks y los tienes en marcha, pero cuando quise empezar a poner código fuente me encontré con problemillas: Que si toca el template por aquí, que si cambia los css, … En fin que no me apetecía hacer hacking en una herramienta propietaria como blogger (que yo sepa no se publica el código fuente aunque las modificaciones de templates están documentadas). Así que me abrí una cuenta en wordpress. Había instalado y jugado un poco con wordpress hace tiempo y no me gustaba mucho, pero al descubrir que dan hosting gratis me lanzé a probarlo y no lo cambio por blogger ni en pintura. Ha mejorado mucho desde que lo ví por primera vez. …
-
JSONP. JSON with Padding
JSON is a really good solution to send data from server to client in web applications. Almost every program language has his own json encode and decode. PHP allows natively to do this encoding from php arrays and objets to JSON. And Zend Framework implements Zend_JSON who also allows you to encode/decode from XML. …


Activity: Ordering Effects
We wish to conduct an experiment to answer the following question:
Do people type dictionary words faster than they do gibberish?
1. Find a partner
- One of you is Player 1, the other is Player 2. Player 1 goes first.
- Depending on your section, run the appropriate experiment with your partner.
- Use one computer to input your data.
2. Load Your Section's Game
3. Answer thought questions about your condition:
Section A: Between Subjects
This game is between subjects. One of you was in one condition (typing dictionary words), and the other person was in a different condition (typing gibberish). Think about the advantages and disadvantages of this set up. Is it appropriate for this particular experiment? When might it be important to pick a between subjects experiment?
-
Section B: Within Subjects, fixed ordering
This game is within subjects. Each of you were in both conditions, and you both did the dictionary condition first, and then the gibberish condition. Since you both did this in the same order, this is not counterbalanced. Think about the advantages and disadvantages of this set up. Is it appropriate for this particular experiment? When might it be important to pick a within subjects experiment? When might you want or not want counterbalancing?
Section C: Within Subjects, randomized ordering
This game is within subjects. Each of you were in both conditions, and you were randomly shown words in each condition. Think about the advantages and disadvantages of this set up. Is it appropriate for this particular experiment? When might it be important to pick a within subjects experiment? When might you want or not want randomization of conditions?


Return to
homepage
Who to talk to
Phone:<PHONE_NUMBER>
Email:
<EMAIL_ADDRESS>Adress: Paradise


Settings
Disable usage of MediaSession API (notifications)
Amount of seconds to jump with
/
Action
Title
Artist
Album
Speed:
Sub-delay:
Audio-delay:
Chapter:
Start:
End:
Slower
Normal
Faster
Next sub
Next audio
Sub delay -
Sub delay +
Audio delay -
Audio delay +
Fullscreen
Audio device


Instance Registration
Registering instances is useful if you already have an instance of an object that you have previously created and want Unity to manage its lifetime, or if you want Unity to inject that object into other objects that it is resolving.
From container's point of view instance registration is in every way similar to type registration, except that it does not need to create the instance on the first Resolve request. It simply gets the object from lifetime manager and returns it as requested. The LifetimeManager controls the lifetime of the object and disposes it when appropriate.
Registration of an Existing Object Instances
The RegisterInstance method registers an existing instance with the container. You specify the instance type and optional lifetime in the parameter list. The container will return the specified existing instance for the duration of the specified lifetime. Unity container offers several overloads to simplify registration syntax. The simplest instance registration does not require any additional parameters other than instance itself:
var instance = new Service();
container.RegisterInstance(instance);
Resolving type Service like this container.Resolve<Service>()
will return an instance of the Service object we registered.
Metadata
Instance registration, as any other registration type, supports adding a registration Name. Doing so lets you register multiple instance of the same Type
for later retrieval as a collection. Using overload you can write it like this:
container.RegisterInstance("Some Name", instance);
Type mapping
Any instance can also be registered as any of the ancestral types or any of the interfaces it implements effectively creating a mapping between these types.
var instance = new Service();
container.RegisterInstance<IService>(instance);
container.RegisterInstance<IService>("Some Name", instance);
or
container.RegisterInstance(typeof(IService), instance)
container.RegisterInstance(typeof(IService), "xyz", instance)
In this example Unity creates two registrations of type IService. When either is resolved it returns the instance of the Service object we registered with container. For more information see Type Mapping
Lifetime
Due to the fact that container does not create these instances, the instance registration only supports limited number of compatible lifetimes:
Per Container
By default Unity uses Per Container lifetime manager when no manager specified explicitly. So all these examples above will be registered with container scope. Unity will keep these instances referenced and alive until the container is alive. Although it is not necessary to provide container controlled lifetime manager you can still write it like this:
container.RegisterInstance("Some Name", instance, InstanceLifetime.PerContainer);
container.RegisterInstance<IService>("Some Name", instance, InstanceLifetime.PerContainer);
Singleton
Instances can be registered as global singletons by using Singleton lifetime manager:
container.RegisterInstance("Some Name", instance, InstanceLifetime.Singleton);
container.RegisterInstance<IService>("Some Name", instance, InstanceLifetime.Singleton);
These instances will be kept alive until root container is disposed.
External
If Unity is not supposed to control lifetime of the object the External lifetime manager is used:
container.RegisterInstance<IService>("Some Name", instance, InstanceLifetime.External);
External lifetime manager is also useful when same instance is registered via multiple interfaces. In this case only one registration should use Per Container or Singleton manager and the rest should be registered with External lifetime manager. This way, when object is disposed, it is not disposed multiple times:
container.RegisterInstance(instance, InstanceLifetime.Singleton);
container.RegisterInstance<IService>( instance, InstanceLifetime.External);
container.RegisterInstance<IService>("Name", instance, InstanceLifetime.External);


Item 1.
A graph with the year on the x-axis starting at 1 CE and ending at 2000 CE. The y-axis shows the global average temperature increase for each year relative to the year 1 CE and it ranges from -.05 degrees centigrade to +1.0 degrees centigrade. Around the year 1900, the trend, which had been slowly declining, started rapidly increasing.in-context


building the
esri leaflet
documentation website
w/
@geogangster
100% straight up
node
ruby
build
it locally
live
reload
pushing
updates to github
Pull Requests
welcome!
resources:
esri leaflet -
http://esri.github.io/esri-leaflet
developers site -
http://developers.arcgis.com


Remote access is denied.
Make sure https is used if you want to access Google Sitemap Generator from remote IP. You can go to help center for how to enable https.
If you are on local machine, make sure you are not using proxy.


TRAILBLAZER
-
I want to run {{qty}} km today.
+
Choose a distance to run, click a spot on the map, and check out your auto-generated running route!


--- layout: post title: Germans to get pay-by-phone public transport date: 2006-04-20 00:00:00 categories: interfaces-&-interaction mobile ---
Via Jack, Germans to get pay-by-phone public transport : "Residents of the German town of Hanau, near Frankfurt am Main, will soon be able to pay for bus rides using their mobile phones following the successful conclusion of a trial conducted by Nokia, Philips, Vodafone and the local transport authority, the Rhein-Main-Verkehrsverbund (RMV)"


note:this is browser based model the entire model will run in browser so you have to wait for 2-3 min to process the data.this model is not long trained because of browser limitation so sometimes it shows wrong value especially with 8.this is hand written numrical value classifier which classify numbers from 0 to 10 dont run on low end devices, it may slow down your pc till leaning duaration


Defaults to veiw of Guatamala. All purple Icons are Telus Locations :)
Click here for source code!!!!


358; 12022 H.E.
I just finished the two volumes of Ryuko by Eldo Yoshimizu. Before going in-depth into why this might be one of my all-time favorite crime fiction stories (and stylish mangas), I have to say,
It is violently brilliant.
A confession must be made – I have never heard of Ryuko or Eldo Yoshimizu before. Knowing that I adore Kill Bill, my close friend saw the Ryuko collection at Barnes & Noble and recommended it. Now, I feel like I have been missing out on scratching the itch that had me bothered for years.
On the surface, Ryuko is a Japanese crime epic, full of international intrigue, complex relationships, and an explosion of what I consider to be one of the most unique and soul-trembling art styles I have had the pleasure of witnessing. As a comment says on the back of the book,
“Ryuko is a raw blast of babes, bullets, and blood!”
– SYFY WIRE
What I adore, Ryuko is all that and much more. From my reading it, I picked up a solid story of a mother-father-daughter relationship, the Cardinal Sin of father killing, and an exploration of morality between them.
Throughout the read, Mr. Yoshimizu masterfully switches between fast and wild scenes; every page is a mini-work of art to serene moments where the world seems to have stopped. Still, I want every frame and page drawn in full scale on a wall somewhere in my apartment.
Here are some pages retrieved from Eldo Yoshimizu’s official Twitter,
I do not know what it is about the style and class, but whenever I go and re-read the pages, I feel as if my brain is being hacked in real time. The composure of all the elements, combined with the story of complicated betrayal and forgiveness, cast a spell. They put me in a trance, where I am lost in the world of Ryuko.
One of the critical advantages that Mr. Yoshimizu employed is how the plot stays unapologetically no-nonsense from beginning till the end. None of the characters, plotlines, twists, and knobs overstay their welcome. On the contrary, I want more, yet I immediately realize I need to restrain myself for my own good.
Some works leave you empty, and some leave you frustrated, hungry, or feeling like you took a dive into a dumpster. However, this one – Ryuko leaves a sweet yet pleasantly bitter aftertaste. It is a sign that it was clean and knew what it was, what it had to be; finally, most of all – it did exactly that. Anton Chekhov famously said,
“Brevity is the sister of talent.”
Going off of that, I do not wish to overstay my welcome either or mull over the same thoughts repeatedly. If any of the above intrigues you, go and find Ryuko in your local bookstores or grab the whole boxed set (all two volumes) at Barnes & Noble. Here is the bundle they can get you (with cards!)
Absolutely go and check out Eldo Yoshimizu’s website and his YouTube channel. Speaking of his YouTube channel, he uploaded an animated, jazzy soundtrack accompanied video (what I think is a trailer) with excerpts from Ryuko. I will link the video below with some extra art pieces taken from Mr. Yoshimizu’s website and Twitter.
Eldo Yoshimizu reserves all rights, so please go to his platforms for more.
Thank you.
Update: Mr. Yoshimizu read this review and commented on it!
ありがとうございました
Merry Christmas! 🎄❤


Project Name:
Daily Data Storage
Site Breakdown:
This App will allow the User to create a database
in a calender like setup. They will be able to update and alter tasks and duties.
These entries will be stored in the local storage.
Site Breakdown:
This Password Generator allows the user to pick
the characters, numbers and length of a special randomized password.
This allows the company's user a great deal of privacy and protection
due to how hard it is to guess and remember computer generated passwords.
Generated Password


--- layout: post title: Emma Lost Her First Tooth categories: [] tags: - family status: publish type: post published: true meta: _original_post_id: '' _original_import_author: John Duprey author: ---
Emma lost her first tooth tonight, right before bed. It had been wiggling for weeks. The last few nights I checked it to see if it was ready.. finally, tonight more than perpendicular to her gum, I tested it again and it popped out with little effort. Emma was crazy excited about the prospects of the Tooth Fairy paying her a visit. I told her I heard that freckles come from fairy foot prints. She quickly, and very much on her own, decided we should compare these pictures to one in the morning to see if it is true. Do you think she will have more freckles come morning time?
On a more serious note, we've put off the regular dentist visit, but given the plaque build up on her little lost tooth, I think its time for a cleaning and perhaps time to consider flossing regularly...


delete city
delete all
Please Search for a City
(today)
- Feels like:
- Temp:
- High: Low:
- Pop:
- Wind:
- Humidity:
- UV Index:
5-Day Forecast
Day 1
Day 2
Day 3
Day 4
Day 5


this is a paragraph, in other words...All text on the page that isn't a title or that does not look differently in this styleguide.
Mura Masa
[Input days]
[Input times]
[input place on domain
Alt-J
KLUB C
20:15 - 21:30
Dua Lipa
KLUB C
18:40 - 19:40
Bazart
THE BARN
18:45 - 20:00
Imagine Dragons
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Kings of leon
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PART 5. POWERS OF ATTORNEY
§§560:5-501, 502 REPEALED. L 1989, c 270, §2.
Cross References
Uniform durable power of attorney act, see chapter 551D.


LetUsRead Uppalam Road branch staretd its service from October of 2013 with a wide collection of books for both adults and children.
Members can borrow books at the library, over phone or through online. Books can be delivered to any address within Kerala.
We are looking for more people to participate in this initiative with us at different levels. If you are interested, please get in touch with us.
Passionate about life and books and growing up reading books, Anand has a strong conviction on the benefits of reading and that resulted in LetUsRead, an initiative to promote reading especially in children. Graduated from Indian Institute of Technology (IIT), Madras, Anand has left 20-year stint in his professional life working for IBM and other companies in India, USA and UK to start LetUsRead. He now spend full-time with LetUsRead and campaign for promoting reading in children. He can be contacted at<EMAIL_ADDRESS>Read founder’s message here.
Passionate about life and books and growing up reading books, Anand has a strong conviction on the benefits of reading and that resulted in LetUsRead, an initiative to promote reading especially in children. Graduated from Indian Institute of Technology (IIT), Madras, Anand has left 20-year stint in his professional life working for IBM and other companies in India, USA and UK to start LetUsRead. He now spend full-time with LetUsRead and campaign for promoting reading in children. He can be contacted at<EMAIL_ADDRESS>Read founder’s message here.


--- headtitle: Visualization of OT with a central server title: Visualization of OT with a central server ---


source file: /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/concurrent/futures/process.py
file stats: 178 lines, 34 executed: 19.1% covered
1. # Copyright 2009 Brian Quinlan. All Rights Reserved. 2. # Licensed to PSF under a Contributor Agreement. 3. 4. """Implements ProcessPoolExecutor. 5. 6. The follow diagram and text describe the data-flow through the system: 7. 8. |======================= In-process =====================|== Out-of-process ==| 9. 10. +----------+ +----------+ +--------+ +-----------+ +---------+ 11. | | => | Work Ids | => | | => | Call Q | => | | 12. | | +----------+ | | +-----------+ | | 13. | | | ... | | | | ... | | | 14. | | | 6 | | | | 5, call() | | | 15. | | | 7 | | | | ... | | | 16. | Process | | ... | | Local | +-----------+ | Process | 17. | Pool | +----------+ | Worker | | #1..n | 18. | Executor | | Thread | | | 19. | | +----------- + | | +-----------+ | | 20. | | <=> | Work Items | <=> | | <= | Result Q | <= | | 21. | | +------------+ | | +-----------+ | | 22. | | | 6: call() | | | | ... | | | 23. | | | future | | | | 4, result | | | 24. | | | ... | | | | 3, except | | | 25. +----------+ +------------+ +--------+ +-----------+ +---------+ 26. 27. Executor.submit() called: 28. - creates a uniquely numbered _WorkItem and adds it to the "Work Items" dict 29. - adds the id of the _WorkItem to the "Work Ids" queue 30. 31. Local worker thread: 32. - reads work ids from the "Work Ids" queue and looks up the corresponding 33. WorkItem from the "Work Items" dict: if the work item has been cancelled then 34. it is simply removed from the dict, otherwise it is repackaged as a 35. _CallItem and put in the "Call Q". New _CallItems are put in the "Call Q" 36. until "Call Q" is full. NOTE: the size of the "Call Q" is kept small because 37. calls placed in the "Call Q" can no longer be cancelled with Future.cancel(). 38. - reads _ResultItems from "Result Q", updates the future stored in the 39. "Work Items" dict and deletes the dict entry 40. 41. Process #1..n: 42. - reads _CallItems from "Call Q", executes the calls, and puts the resulting 43. _ResultItems in "Request Q" 44. """ 45. 46. import atexit 47. from concurrent.futures import _base 48. import Queue as queue 49. import multiprocessing 50. import threading 51. import weakref 52. import sys 53. 54. __author__ = 'Brian Quinlan (brian@sweetapp.com)' 55. 56. # Workers are created as daemon threads and processes. This is done to allow the 57. # interpreter to exit when there are still idle processes in a 58. # ProcessPoolExecutor's process pool (i.e. shutdown() was not called). However, 59. # allowing workers to die with the interpreter has two undesirable properties: 60. # - The workers would still be running during interpretor shutdown, 61. # meaning that they would fail in unpredictable ways. 62. # - The workers could be killed while evaluating a work item, which could 63. # be bad if the callable being evaluated has external side-effects e.g. 64. # writing to a file. 65. # 66. # To work around this problem, an exit handler is installed which tells the 67. # workers to exit when their work queues are empty and then waits until the 68. # threads/processes finish. 69. 70. _threads_queues = weakref.WeakKeyDictionary() 71. _shutdown = False 72. 73. def _python_exit(): 74. global _shutdown 75. _shutdown = True 76. items = list(_threads_queues.items()) if _threads_queues else () 77. for t, q in items: 78. q.put(None) 79. for t, q in items: 80. t.join(sys.maxint) 81. 82. # Controls how many more calls than processes will be queued in the call queue. 83. # A smaller number will mean that processes spend more time idle waiting for 84. # work while a larger number will make Future.cancel() succeed less frequently 85. # (Futures in the call queue cannot be cancelled). 86. EXTRA_QUEUED_CALLS = 1 87. 88. class _WorkItem(object): 89. def __init__(self, future, fn, args, kwargs): 90. self.future = future 91. self.fn = fn 92. self.args = args 93. self.kwargs = kwargs 94. 95. class _ResultItem(object): 96. def __init__(self, work_id, exception=None, result=None): 97. self.work_id = work_id 98. self.exception = exception 99. self.result = result 100. 101. class _CallItem(object): 102. def __init__(self, work_id, fn, args, kwargs): 103. self.work_id = work_id 104. self.fn = fn 105. self.args = args 106. self.kwargs = kwargs 107. 108. def _process_worker(call_queue, result_queue): 109. """Evaluates calls from call_queue and places the results in result_queue. 110. 111. This worker is run in a separate process. 112. 113. Args: 114. call_queue: A multiprocessing.Queue of _CallItems that will be read and 115. evaluated by the worker. 116. result_queue: A multiprocessing.Queue of _ResultItems that will written 117. to by the worker. 118. shutdown: A multiprocessing.Event that will be set as a signal to the 119. worker that it should exit when call_queue is empty. 120. """ 121. while True: 122. call_item = call_queue.get(block=True) 123. if call_item is None: 124. # Wake up queue management thread 125. result_queue.put(None) 126. return 127. try: 128. r = call_item.fn(*call_item.args, **call_item.kwargs) 129. except BaseException: 130. e = sys.exc_info()[1] 131. result_queue.put(_ResultItem(call_item.work_id, 132. exception=e)) 133. else: 134. result_queue.put(_ResultItem(call_item.work_id, 135. result=r)) 136. 137. def _add_call_item_to_queue(pending_work_items, 138. work_ids, 139. call_queue): 140. """Fills call_queue with _WorkItems from pending_work_items. 141. 142. This function never blocks. 143. 144. Args: 145. pending_work_items: A dict mapping work ids to _WorkItems e.g. 146. {5: <_WorkItem...>, 6: <_WorkItem...>, ...} 147. work_ids: A queue.Queue of work ids e.g. Queue([5, 6, ...]). Work ids 148. are consumed and the corresponding _WorkItems from 149. pending_work_items are transformed into _CallItems and put in 150. call_queue. 151. call_queue: A multiprocessing.Queue that will be filled with _CallItems 152. derived from _WorkItems. 153. """ 154. while True: 155. if call_queue.full(): 156. return 157. try: 158. work_id = work_ids.get(block=False) 159. except queue.Empty: 160. return 161. else: 162. work_item = pending_work_items[work_id] 163. 164. if work_item.future.set_running_or_notify_cancel(): 165. call_queue.put(_CallItem(work_id, 166. work_item.fn, 167. work_item.args, 168. work_item.kwargs), 169. block=True) 170. else: 171. del pending_work_items[work_id] 172. continue 173. 174. def _queue_management_worker(executor_reference, 175. processes, 176. pending_work_items, 177. work_ids_queue, 178. call_queue, 179. result_queue): 180. """Manages the communication between this process and the worker processes. 181. 182. This function is run in a local thread. 183. 184. Args: 185. executor_reference: A weakref.ref to the ProcessPoolExecutor that owns 186. this thread. Used to determine if the ProcessPoolExecutor has been 187. garbage collected and that this function can exit. 188. process: A list of the multiprocessing.Process instances used as 189. workers. 190. pending_work_items: A dict mapping work ids to _WorkItems e.g. 191. {5: <_WorkItem...>, 6: <_WorkItem...>, ...} 192. work_ids_queue: A queue.Queue of work ids e.g. Queue([5, 6, ...]). 193. call_queue: A multiprocessing.Queue that will be filled with _CallItems 194. derived from _WorkItems for processing by the process workers. 195. result_queue: A multiprocessing.Queue of _ResultItems generated by the 196. process workers. 197. """ 198. nb_shutdown_processes = [0] 199. def shutdown_one_process(): 200. """Tell a worker to terminate, which will in turn wake us again""" 201. call_queue.put(None) 202. nb_shutdown_processes[0] += 1 203. while True: 204. _add_call_item_to_queue(pending_work_items, 205. work_ids_queue, 206. call_queue) 207. 208. result_item = result_queue.get(block=True) 209. if result_item is not None: 210. work_item = pending_work_items[result_item.work_id] 211. del pending_work_items[result_item.work_id] 212. 213. if result_item.exception: 214. work_item.future.set_exception(result_item.exception) 215. else: 216. work_item.future.set_result(result_item.result) 217. # Delete references to object. See issue16284 218. del work_item 219. # Check whether we should start shutting down. 220. executor = executor_reference() 221. # No more work items can be added if: 222. # - The interpreter is shutting down OR 223. # - The executor that owns this worker has been collected OR 224. # - The executor that owns this worker has been shutdown. 225. if _shutdown or executor is None or executor._shutdown_thread: 226. # Since no new work items can be added, it is safe to shutdown 227. # this thread if there are no pending work items. 228. if not pending_work_items: 229. while nb_shutdown_processes[0] < len(processes): 230. shutdown_one_process() 231. # If .join() is not called on the created processes then 232. # some multiprocessing.Queue methods may deadlock on Mac OS 233. # X. 234. for p in processes: 235. p.join() 236. call_queue.close() 237. return 238. del executor 239. 240. _system_limits_checked = False 241. _system_limited = None 242. def _check_system_limits(): 243. global _system_limits_checked, _system_limited 244. if _system_limits_checked: 245. if _system_limited: 246. raise NotImplementedError(_system_limited) 247. _system_limits_checked = True 248. try: 249. import os 250. nsems_max = os.sysconf("SC_SEM_NSEMS_MAX") 251. except (AttributeError, ValueError): 252. # sysconf not available or setting not available 253. return 254. if nsems_max == -1: 255. # indetermine limit, assume that limit is determined 256. # by available memory only 257. return 258. if nsems_max >= 256: 259. # minimum number of semaphores available 260. # according to POSIX 261. return 262. _system_limited = "system provides too few semaphores (%d available, 256 necessary)" % nsems_max 263. raise NotImplementedError(_system_limited) 264. 265. class ProcessPoolExecutor(_base.Executor): 266. def __init__(self, max_workers=None): 267. """Initializes a new ProcessPoolExecutor instance. 268. 269. Args: 270. max_workers: The maximum number of processes that can be used to 271. execute the given calls. If None or not given then as many 272. worker processes will be created as the machine has processors. 273. """ 274. _check_system_limits() 275. 276. if max_workers is None: 277. self._max_workers = multiprocessing.cpu_count() 278. else: 279. self._max_workers = max_workers 280. 281. # Make the call queue slightly larger than the number of processes to 282. # prevent the worker processes from idling. But don't make it too big 283. # because futures in the call queue cannot be cancelled. 284. self._call_queue = multiprocessing.Queue(self._max_workers + 285. EXTRA_QUEUED_CALLS) 286. self._result_queue = multiprocessing.Queue() 287. self._work_ids = queue.Queue() 288. self._queue_management_thread = None 289. self._processes = set() 290. 291. # Shutdown is a two-step process. 292. self._shutdown_thread = False 293. self._shutdown_lock = threading.Lock() 294. self._queue_count = 0 295. self._pending_work_items = {} 296. 297. def _start_queue_management_thread(self): 298. # When the executor gets lost, the weakref callback will wake up 299. # the queue management thread. 300. def weakref_cb(_, q=self._result_queue): 301. q.put(None) 302. if self._queue_management_thread is None: 303. self._queue_management_thread = threading.Thread( 304. target=_queue_management_worker, 305. args=(weakref.ref(self, weakref_cb), 306. self._processes, 307. self._pending_work_items, 308. self._work_ids, 309. self._call_queue, 310. self._result_queue)) 311. self._queue_management_thread.daemon = True 312. self._queue_management_thread.start() 313. _threads_queues[self._queue_management_thread] = self._result_queue 314. 315. def _adjust_process_count(self): 316. for _ in range(len(self._processes), self._max_workers): 317. p = multiprocessing.Process( 318. target=_process_worker, 319. args=(self._call_queue, 320. self._result_queue)) 321. p.start() 322. self._processes.add(p) 323. 324. def submit(self, fn, *args, **kwargs): 325. with self._shutdown_lock: 326. if self._shutdown_thread: 327. raise RuntimeError('cannot schedule new futures after shutdown') 328. 329. f = _base.Future() 330. w = _WorkItem(f, fn, args, kwargs) 331. 332. self._pending_work_items[self._queue_count] = w 333. self._work_ids.put(self._queue_count) 334. self._queue_count += 1 335. # Wake up queue management thread 336. self._result_queue.put(None) 337. 338. self._start_queue_management_thread() 339. self._adjust_process_count() 340. return f 341. submit.__doc__ = _base.Executor.submit.__doc__ 342. 343. def shutdown(self, wait=True): 344. with self._shutdown_lock: 345. self._shutdown_thread = True 346. if self._queue_management_thread: 347. # Wake up queue management thread 348. self._result_queue.put(None) 349. if wait: 350. self._queue_management_thread.join(sys.maxint) 351. # To reduce the risk of openning too many files, remove references to 352. # objects that use file descriptors. 353. self._queue_management_thread = None 354. self._call_queue = None 355. self._result_queue = None 356. self._processes = None 357. shutdown.__doc__ = _base.Executor.shutdown.__doc__ 358. 359. atexit.register(_python_exit)


ElegantThemes
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{% extends "global/Page.html" %} {% load otree static %} {% block title %} Introduction {% endblock %} {% block content %}
Thank you for participating in our study. The study will last about 100 minutes and it consists of two tasks in the context of a firm: In Stage One, you will be working on a slider bar task. In Stage Two, you will be working on a decision making task.
All interactions will be anonymous and we promise to carry out this study in the manner described in the instructions, with NO deception of any form.
If you have any questions while reading the instructions, or during the study, please send a private message to the administrator via Zoom. It is important that you keep your questions and decisions private.
Please help us maintain control over this study by not discussing it with anyone who may be participating in future sessions.
{% next_button %} {% endblock %}


| Home | Libraries | People | FAQ | More |
A transaction consists of one or more operations changing persistent objects. Once all operations have been recorded, the transaction is either applied to the global state (commit) or undone (rollback).
Atomicity
A transaction pools several operations into one atomic operation. It is guaranteed that either all operations of one transaction are applied, or none of them, thus preventing that only a part of an application's state is written to disk.
Consistency
The objects accessible through Boost.Persistent are in a consistent state. If a transaction is successful, the state presented to it was either the state before another transaction, or after another transaction, but nothing in between. If a transaction can not be applied to the global state it is undone as a whole.
Isolation
Persistent objects can be accessed from multiple threads concurrently, without manual synchronization. Changes made by one transaction are not visible to other transactions until the transaction was successfully committed. Transactions can run concurrently, but once committed, the resulting state is equal to the state that would have been reached if all successful transactions had been executed in sequence.
If a transaction conflicts with a another transaction an exception is thrown and the transaction can be repeated.
Durability
When a transaction was successfully committed, the changes made by it are guaranteed to be permanent, even if the application crashes shortly thereafter.
A transaction is started by creating a transaction scope. There are two ways to open a transaction scope:
1. Constructing a transaction
object:
{ transaction tx; ... tx.commit(); }
2. Using an atomic scope:
#define atomic BOOST_PERSISTENT_ATOMIC #define retry BOOST_PERSISTENT_RETRY atomic{ ... } retry;
In case the end of the transaction scope is not reached, e.g. due to an exception, the transaction is rolled back, i.e. all changes made to persistent objects in the transaction scope are undone.
The two ways to open a transaction scope are equivalent, except in the case of Concurrent transactions.
Savepoints are a simplified representation of transactions, designed for applications that don't need fine-grained control over transactions.
The following two code snippets are equivalent:
1. Using savepoints:
savepoints_session session("mydb"); ... session.save(); ... session.save(); ... session.save();
2. Using transactions:
transactional_session session("mydb"); { transaction tx; ... tx.commit(); } { transaction tx; ... tx.commit(); } { transaction tx; ... tx.commit(); }
Persistent objects can not be modified outside of a
transaction scope, any attempt to do so results in a
no_active_transaction
exception.
However, persistent objects can be read outside of transaction scopes.
Example:
loc<pers_type const> pers_obj=...; //const! std::cout << pers_obj->value << std::endl; //ok
Due to the fact that the locator pers_obj refers to a const object, the intent of read-only access is clear.
If a locator to a non-const object is dereferenced outside of a transaction scope, an exception is thrown, even if the object is only accessed for reading:
loc<pers_type> pers_obj=...; std::cout << pers_obj->value << std::endl; //throws
To avoid this, pers_obj must either be (implicitely)
converted to a const locator, or
loc::read()
can be used:
loc<pers_type> pers_obj=...; std::cout << pers_obj.read()->value << std::endl; //ok
Transactions can be nested:
{ transaction outer; { transaction inner; //modify persistent objects inner.commit(); } outer.commit(); }
inner.commit() makes the changes made by inner part of the outer transaction. It does not write the changes by inner to disk. If the call to inner.commit() is omitted, e.g. due to an exception that is caught by the outer scope, all changes made in that nested transaction are undone, without affecting the outer transaction.
This is especially useful if a function that creates its own transaction scope is called from within another transaction scope:
void f2(){ transaction tx; ... tx.commit(); } void f1(){ transaction tx; ... f2(); ... tx.commit(); }
| Note | |
|---|---|
|
Nested transactions are much more efficient than root transactions since they are not durable (as defined by ACID transactions) in any case, either commit or rollback, until the outer transaction is committed. So another use case of nested transactions is efficiently maintaining consistency at application runtime, with commits of the (large) outer transaction representing the savepoints of the application. |
Transactions can be started concurrently by different threads.
It is guaranteed that no transaction is successfully committed that would result in a state that is different from the state that would have been reached if all transactions were executed in sequence.
If a transaction conflicts with another concurrent
transaction an isolation_exception
is thrown in one of the transactions, which needs to
be handled by user code.
Example:
try{ transaction tx; ... bank_account1->balance += amount; bank_account2->balance -= amount; tx.commit(); }catch(isolation_exception &){ //another transaction modified the same bank accounts simultaniously, which would have //resulted in an inconsistent state. ... }
The standard behaviour is to repeat a transaction until it was successfully committed.
To achieve this behaviour, Boost.Persistent provides two macros, BOOST_PERSISTENT_ATOMIC
and BOOST_PERSISTENT_RETRY, which can be used to create a transaction
scope instead of constructing a transaction
object.
Example:
#define atomic BOOST_PERSISTENT_ATOMIC #define retry BOOST_PERSISTENT_RETRY atomic{ ... bank_account1->balance += amount; bank_account2->balance -= amount; }retry;
The transaction is repeated until it can be committed successfully.
Multiple concurrent transactions can be started as nested transactions of a given transaction.
When a new thread is started though, it is not bound to any transaction,
so any transaction started by it will be a root
transaction. To avoid this, the new thread has to call transaction::bind()
on the existing transaction first, and then start its
transaction scope to create a nested transaction
in the existing transaction.
Example:
void thread_start(transaction &parenttx){ parenttx.bind(); atomic{ //do work }retry; } void f(){ transaction parenttx; //start more threads, passing 'parenttx' //do work //wait for all threads working on nested transactions to complete parenttx.commit(); }
This tutorial implements the example of multiple threads concurrently withdrawing and depositing from bank accounts, without money being lost due to concurrent write accesses to the bank accounts.
First, a account type is needed:
struct account{ int balance; account() : balance(0){} template<class Archive> void serialize(Archive &ar,unsigned int){ ar & balance; } };
The accounts are stored in a vector in the bank type to enable random access to the accounts:
struct bank{ std::vector< loc<account> > accounts; template<class Archive> void serialize(Archive &ar,unsigned int){ ar & accounts; } };
The bank is prepared by adding some accounts:
pinned_loc<bank> create_bank(int nr_of_accounts){ transaction tx; pinned_loc<bank> mybank; mybank.reset(new bank); for(int c=0;c<nr_of_accounts;++c){ mybank->accounts.push_back(loc<account>(new account)); } tx.commit(); return mybank; }
Finally, a function withdrawing and depositing a random amount of money from random bank accounts is implemented:
void thread_start(){ pinned_loc<bank> mybank; int nr_of_accounts=mybank.read()->accounts.size(); while(!this_thread::interruption_requested()){ int amount=rand() % 10000; int account1=rand() % nr_of_accounts; int account2=rand() % nr_of_accounts; atomic{ mybank->accounts[account1]->balance -= amount; mybank->accounts[account2]->balance += amount; }retry; } }
The overall balance of all bank accounts in the bank is initialized with 0, so it must stay 0 since no money is added or removed. A member function is added to bank to check for that:
int overall_balance() const{ int tmp=0; BOOST_FOREACH(loc<account const> ac,this->accounts){ tmp+=ac->balance; } return tmp; }
#include <iostream> #include <boost/foreach.hpp> #include <boost/thread.hpp> #include <boost/bind.hpp> #include <boost/serialization/vector.hpp> #include <boost/lexical_cast.hpp> #include <boost/date_time/posix_time/ptime.hpp> #include <boost/persistent/transactional_session.hpp> #include <boost/persistent/loc.hpp> #include <boost/persistent/pinned_loc.hpp> #include <boost/persistent/transaction.hpp> #define atomic BOOST_PERSISTENT_ATOMIC #define retry BOOST_PERSISTENT_RETRY using namespace std; using namespace boost; using namespace persistent; struct account{ int balance; account() : balance(0){} template<class Archive> void serialize(Archive &ar,unsigned int){ ar & balance; } }; struct bank{ std::vector< loc<account> > accounts; template<class Archive> void serialize(Archive &ar,unsigned int){ ar & accounts; } int overall_balance() const{ int tmp=0; BOOST_FOREACH(loc<account const> ac,this->accounts){ tmp+=ac->balance; } return tmp; } }; pinned_loc<bank> create_bank(int nr_of_accounts){ transaction tx; pinned_loc<bank> mybank; mybank.reset(new bank); for(int c=0;c<nr_of_accounts;++c){ mybank->accounts.push_back(loc<account>(new account)); } tx.commit(); return mybank; } void thread_start(){ pinned_loc<bank> mybank; int nr_of_accounts=mybank.read()->accounts.size(); while(!this_thread::interruption_requested()){ int amount=rand() % 10000; int account1=rand() % nr_of_accounts; int account2=rand() % nr_of_accounts; atomic{ mybank->accounts[account1]->balance -= amount; mybank->accounts[account2]->balance += amount; }retry; } } int main(){ srand(time(0)); transactional_session session("mydb"); pinned_loc<bank const> mybank; if(!mybank) mybank=create_bank(200); cerr << "overall balance before: " << mybank->overall_balance() << endl; thread threads[10]; //start 10 threads for(int c=0;c<10;++c){ thread(boost::bind(&thread_start)).swap(threads[c]); } this_thread::sleep(posix_time::seconds(30)); for(int c=0;c<10;++c){ //stop threads threads[c].interrupt(); threads[c].join(); } cerr << "overall balance after: " << mybank->overall_balance() << endl; }
Instances of persistent objects obtained in one transaction must not be used in another transaction.
The result of dereferencing a locator can be saved for efficiency, for example instead of:
loc<pers_type> obj=...; obj->a=1; obj->b=1;
one could write:
loc<pers_type> obj=...; shared_ptr<pers_type> inst=*obj; inst->a=1; inst->b=1;
Although the first code snippet does not cause the persistent object to be loaded from disk twice, since objects are cached, it is less efficient than the second code snippet.
However, instances must not be used across transaction boundaries:
shared_ptr<pers_type> inst; { transaction tx; loc<pers_type> obj=...; inst=*obj; tx.commit(); } { transaction tx; inst->a=1; //error tx.commit(); }
The resulting object state of this is undefined.
Since atomic scopes are repeated until a transaction is successfully committed, the side effects of the scope, if any, must be repeatable.
Example:
template<class InputIterator> void f(InputIterator it){ atomic{ ... pers_obj->use_value(*it++); //error }retry; }
The transaction may still fail due to a concurrent transaction changing the same object, after the InputIterator it has been incremented. When the transaction is repeated, it starts with an already incremented it.
If atomic scopes have side effects, i.e. effects other than changing persistent objects, they must be moved outside of the atomic scope:
Example:
template<class InputIterator> void f(InputIterator it){ atomic{ ... persobj->use_value(*it); }retry; ++it; }
Only if the transaction is successful, the side effects of f() are applied.


Rusty Steele
Hi, I'm a dog. Woof!
Some of my favourite places:
The Beach>
The dog park
The fire hydrant
Make sure to follow me on
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The basis of all VRaniML's geometry nodes is a data structure called the HalfEdge. This data structure allows us to support a wide range of 3D graphics algorithms such as boolean operations, mesh decimation, etc. Because this data structure is so fundamental to VRaniML, and of such a proprietary nature, we withhold its documentation from the downloadable version of the SDK.
Upon purchase of a source code license you will receive the documentation for this collection of classes. The documentation available here is of limited use.
Luckily, there is absolutely no need for you to understand how these class work to use the SDK fully. The existence of the halfedge data structure is completely hidden from the user.
vrSolid, vrFace, vrLoop, vrEdge, vrHalfEdge, vrVertex


The joint distribution of potential outcomes is not typically identified under standard identifying assumptions such as selection on observables or even when individuals are randomly assigned to being treated. This package contains methods for obtaining tight bounds on distributional treatment effect parameters when panel data is available and under a Copula Stability Assumption as in Callaway (2017) <https://ssrn.com/abstract=3028251>.
| Version: | 1.0.0 |
| Depends: | R (≥ 3.0) |
| Imports: | stats, ggplot2, BMisc, pbapply, progress, qte |
| Published: | 2017-09-06 |
| Author: | Brantly Callaway [aut, cre] |
| Maintainer: | Brantly Callaway <brantly.callaway at temple.edu> |
| License: | GPL-2 |
| NeedsCompilation: | no |
| Materials: | README NEWS |
| CRAN checks: | csabounds results |
| Reference manual: | csabounds.pdf |
| Package source: | csabounds_1.0.0.tar.gz |
| Windows binaries: | r-devel: csabounds_1.0.0.zip, r-release: csabounds_1.0.0.zip, r-oldrel: csabounds_1.0.0.zip |
| OS X binaries: | r-release: csabounds_1.0.0.tgz, r-oldrel: csabounds_1.0.0.tgz |
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Participating
Nations: Canada, Japan, the Russian Federation, the United States, and eleven Member States of the European Space Agency (Belgium, Denmark, France, Germany, Italy, The Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom).
Visitors to the ISS
- U.S.A. - 151 people.
- Russia - 47 people.
- Japan - 9 people.
- Canada - 8 people
- Italy - 5 people.
- France - 4 people.
- Germany - 3 people.
- Great Britain - 1 person.
- Brazil - 1 person.
- Netherlands - 1 person.
- Spain - 1 person.
- Belgium - 1 person.
- Kazakhstan - 1 person.
- South Korea - 1 person.
- Malaysia - 1 person.
- U.A.E. - 1 person.
- South Africa - 1 person.
- Denmark - 1 person.


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Catalans form human chain in Spain separation bid
BARCELONA, Spain (AP) — More than 1 million people showed their support for Catalan independence Wednesday by joining hands to form a 400-kilometer (250-mile) human chain across the northeastern region of Spain.
The demonstration on the region's annual public holiday aimed to illustrate the strength of local backing for political efforts to break away from Spain. The Catalan regional government estimated 1.6 million people in the region of 7.5 million residents took part in the human chain, many of them with red, yellow and blue pro-independence flags draped around their shoulders.
"Today is a historic day. The Catalan people have reaffirmed their determination to be a free state," said Carme Forcadell, president of the Catalan National Assembly, which organized the human chain.
The protest in Catalonia was peaceful, but a small group of Spanish fascists in Madrid stormed their way into the office of the Catalan government's delegation building in the capital.
Television images showed about 10 men with Spanish fascist flags shouting, pushing people, knocking over furniture and hitting a journalist's TV camera. They yelled "Catalonia is Spain!" and quickly left, but reportedly opened a tear gas container, forcing the 100 or so people gathered there to evacuate.
During Francisco Franco's fascist dictatorship from 1939-1975, the Catalan language was banned in schools, publishing and from public use.
Despite sharing many cultural traits with the rest of Spain, many Catalans claim a deep cultural difference based on their language, which is spoken side-by-side with Spanish in the wealthy region.
Catalonia's regional leader Artur Mas has promised to hold a referendum on independence in 2014, but the Madrid-based government has said that such a vote would be unconstitutional.
Polls indicate that the majority of Catalans agree on holding a referendum, though surveys indicate support among residents for independence is around 50 percent. It falls to less than that when those questioned are asked whether they would want a separate Catalan state outside the European Union.
The Spanish government's refusal to grant Catalonia similar fiscal powers held by the Basque Country - the other region with a strong separatist movement - combined with the country's double-dip recession have swelled the pro-independence ranks in recent years. Many Catalans feel secession would allow them to pull free of Spain's economic troubles.
"It's becoming clearer that we have nowhere to go with Spain. We want to be free," said Montse Espina, a 44-year-old sales representative holding a pro-independence flag in Barcelona.
Pro-independence supporters raised their arms and chanted "Independence!" during the demonstration. There was a festive mood across the countryside, with church bells ringing out in some towns and villages.
In Barcelona, the human chain passed through the city's main square, around the famous Sagrada Familia cathedral and through the Camp Nou Stadium where the Barcelona soccer team plays.
"The message has been sent," Mas said. "If we are not given a way to channel this widespread patriotic movement, then I think the Spanish state has a serious problem with Catalonia."
Spain's deputy prime minister, Soraya Saenz de Santamaria, said Mas was promoting political divisions.
"The worst thing a politician can do is force people to separate" into two groups, she said.