Lancaster Rose Emblem
Lancaster Rose Meaning
The red rose of Lancaster was worn as a badge which identified someone as belonging to or supporting the House of Lancaster. By wearing the rose a person was displaying their loyalty and allegiance to the family. The emblem of the red rose was adopted during the middle ages and was readily accepted into the symbols of British heraldry.
The emblem was worn not only by the more powerful members of the family but it was also worn by their servants and retainers to show their loyalty to the House of Lancaster.
Lancanshire Rose image
Lancaster Rose flower
Why is the Lancaster Rose Red?
The House of Lancaster got its emblem – the red rose from the badge of Edward I of England which was a gold rose. It was adopted in the 14th century. Today it simply symbolises the Lancashire county.
Lancaster Rose flower Meaning
The emblem for the House of Lancaster was chosen by Edmund, the son of Henry III. The species of rose that Edmund chose was believed to be Rosa Gallica. It was then adopted by the subsequent earls of Lancaster. Although the roses became the symbols of the House of Lancaster and the House of York, neither Houses were believed to have displayed them as their emblem during the War.
The emblem signified loyalty and respect towards the respective Houses.
Lancanshire rose image
Lancanshire rose image
The Red Rose of Lancaster
The emblem of the red rose of Lancaster was sported by supporters of the House of Lancaster, a house which was in rivalry with the House of York, and an equally powerful house whose supporters wore the white rose of York. These families, two of the most powerful houses in England were both trying to lay claim to the English throne.
Both of these noble houses were descended from the Plantagenet House, with their descent being traced back to King Edward III. The family or House of Lancaster was so called as the descendants on that side were descended from the 1st Duke of Lancaster, John Gaunt, and as such adopted the red rose as their emblem.
Lancaster Rose Emblem
Henry Bolingbroke Starts the War of the Roses
The start of the bitter rivalry between the houses of Lancaster and York can be traced back to 1399. This is when Henry Bolingbroke, the then Duke of Lancaster overthrew his cousin King Richard II and claimed the throne. Over the following years three Lancastrian kings held the English throne, these were Henry Bolingbroke who became Henry IV (_PHONE_)
He was the grandson of Edward III and the son of the 1st Duke of Lancaster John of Gaunt. He was followed by his son Henry V (_PHONE_) who was in turn followed by his son Henry VI (_PHONE_). The subsequent war of the roses lasted for decades and saw the deaths of many thousands of people.
The End of the War of the Roses
The War of the Roses was brought to an end with the death of King Richard III at the Battle of Bosworth Field. Richard was the leader of the House of York and was slain on the battlefield by the forces of Henry Tudor, the leader of the Lancaster faction. Henry then claimed the throne for himself. Knowing that his claim on the throne was not as solid as it could have been, he made Elizabeth of York his wife.
Lancaster Rose Emblem
Their marriage not only brought the War of the Roses to an end but also united two of the most powerful noble houses in England. Henry was crowned King Henry VII and went on to found the Tudor dynasty whose emblem is that of the Tudor rose which features the union of the red and white roses of the two houses. Today there is still much rivalry between the counties of York and Lancaster, though the battles today take place in the field of sport.
More Info OnTudor Rose Symbol, Medieval England Mary Rose Longbow, Facts About Mary Rose Ship in Tudor Times
Found info useful?


Gift cards
There are three gift cards in different price classes and with different levels of excitement.
111.- The first and most advantageous is mormyshka fishing or summer angling. The duration of the fishing day is 6 hours. Under the guidance of the fish guide, smaller target species, such as: roach, ruff, bleak, perch, bream are caught on ice in winter or by angling (with a simple hand line) from the shore of the water body in summer. By applying these fishing methods, the primary success experience can be ensured, especially for children, but they have always provided excitement for adults as well. A particularly meditative activity is spring migratory roach fishing, because then it is possible to catch larger quantities of fish for drying. Number of participants up to 2.
222.- The second gift card includes winter tipup fishing on some larger lakes. Trapping is a way to catch some particularly big predator. The fishing takes place where the fish is currently biting. The best area for these occasions is Vooremaa, where there are several small lakes rich in fish. During free water, you can take a motorboat on Kuremaa and Saadjärv, Võrtsjärv and, of course the Suur-Emajõgi, Pede River and their old rivers in the Alam-Pedja nature reserve area. Duration of the fishing day is 8 hours. Number of participants up to 2.
333.- The third gift card is for occasions if you want to make a special impression on the recipient. In these cases, the motorboat undertakes longer sea voyages to catch sea trout, pike or garfish. The fishing areas are the entire west coast with its archipelago, as well as the archipelagos of Northern Estonia. There are pantries in our seas, where dozens of pike can be pulled into the boat in one hour, and it is not uncommon to see water surface boiling of the garfish while they are spawning The boat also gives access to the most adrenaline-laden flocks of sea trout. Such fishing trips are always remembered and it is not uncommon for them to become traditions. The duration of the fishing day is 8-10 hours. Number of participants up to 2.
The fourth gift card is intended, for example, for those occasions when you want to celebrate your friend's birthday with a fishing trip on the water or ice. In this case, we will arrange fishing, water transport, catering and if desired, a sauna and accommodation. There are no limits to the number of people and we are also flexible in terms of price. For example, we have organized a fishing trip to Pedassaare, which includes a boat trip to the island, sea trout fishing by wading from the shore and hiking around the island, a fish valuation workshop, making a campfire and eating the catch together. The nature of Pedassaare is unique and non-fishermen can come along as well. Everyone will find the soul there, because the island is rich in mushrooms and berries, and there is a variety of beach types, birds and plant species.
Mark here which card you want


text:
Bees learn while they sleep, and that means they might dream.
Photo via MYN Pierre Escoubas/naturepl.com
A new study suggests that bees can store information in long-term memory while they sleep, just like humans do when we dream
For all our obvious differences, humans and honeybees share some common threads within the fabric of life.
We are both social species. While humans speak and write to communicate, honeybees dance to one another; waggling their bodies for specific durations at angles that indicate where the best pockets of nectar or pollen are to be found outside the hustle and bustle of the nest.
But only forager bees – the eldest of several types of honeybee castes – do this. Just like in human populations, the honeybee colony is divided into different sectors of work. There are cleaners, nurses, security guards, not to mention collection bees whose sole job is to cache nectar in comb.

source: openbmb/Ultra-FineWeb


text:
We report on an optically pumped semiconductor disk laser with a wide wavelength tuning range and a high peak output power. This was achieved using a combination of efficient thermal management and a broadband gain element (GE) with carefully engineered spectral gain characteristics. For heat removal, a flip-chip bonding scheme on diamond was used. To provide high active mirror reflectance over a large wavelength region, the layered structure of the GE formed a nonresonant subcavity assisted by an antireflective structure. A peak output power of more than 7.5 W and a tuning range of 32 nm around the center wavelength of 995 nm were obtained.
- multilayer interference coatings
- semiconductor lasers
- Tunable lasers
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics


Take the 2-minute tour ×
This is the problem: Find non-trivial example of (linaer connected) space X so that cone over X is homeomorphic to cylinder over X. Trivial examples are one point set and empty set. I have absolutely no idea.My friend says it's an interval, then cone is triangle and cylinder is a rectangle, but I don't agree that they are homeomorphic. Am I wrong?
share|improve this question
So the cylinder is $X \times I$ while the cone is $(X \times I )/ (X \times \{0\})$. – john mangual Oct 9 '12 at 15:10
add comment
1 Answer
For a closed interval, the cone and cylinders are a closed triangle and rectangle, and those are homeomorphic because either is homeomorphic to a closed disk.
For an open interval, however, you get into trouble. Then then the cone contains an isolated boundary point but the cylinder doesn't.
For a half-open interval there's still trouble, because the boundary of the cone is a half-open interval but the boundary of the cylinder is a closed interval.
share|improve this answer
add comment
Your Answer


text: Non-discrimination is a recognized objective in algorithmic decision making. In this paper, we introduce a novel probabilistic formulation of data pre-processing for reducing discrimination. We propose a convex optimization for learning a data transformation with three goals: controlling discrimination, limiting distortion in individual data samples, and preserving utility. We characterize the impact of limited sample size in accomplishing this objective. Two instances of the proposed optimization are applied to datasets, including one on real-world criminal recidivism. Results show that discrimination can be greatly reduced at a small cost in classification accuracy.


text:
Special offer original Price £10.95 Now £2.50.
Seven meditations on the creation narrative of Genesis 1-2.3 use the text as a starting point for the developing life of prayer. Each chapter concludes with a summary and seven suggestions for ways of praying. These meditations are suitable for individuals or groups as a lent course.
Let There Be Light
- Author: Angela Tilby
- Publisher: D.L.T


Running a Shop Leadership Shop Customers Education+Training Strategy+Planning Customer Service Estimator+Admin Training
Developing a Preblueprint Inspection
Order Reprints
Mark's Body Shop in Baltimore always attempted to get the repair process started as quickly as possible. To get techs working on vehicles right away, the office staff only acquired a small amount of information from customers, says vice president Mark Schaech Jr. But technicians always needed more information from customers to develop repair plans, which slowed work. So Schaech implemented a new standard operating procedure (SOP) to ensure employees documented the right information up front, which improved repair plans and efficiency, and helped his team set proper customer expectations.
Schaech explains how he developed a preblueprint inspection routine at his facility, and how the standardized process has become a valuable tool.
We implemented this inspection routine about five years ago. It's a 30-minute data collection process conducted prior to blueprinting procedures in which we acquire and assess a standard set of information on every job, regardless of the vehicle type or amount of damage that exists. It's a methodical collection of information that helps us document the state of the vehicle, and understand how to properly blueprint the job. It has become a strong tool that we use every day to save time and improve the customer experience.
The inspection routine includes three key steps:
#1: Repair Contract. We complete a repair contract for every customer before looking at their vehicle. The repair contract is a document designed to gather basic customer and vehicle information, and to educate the customer about the repair process.
The four-page contract includes the vehicle's make, model, VIN and color. We also provide information about things like repair payment options and parts usage. We explain the pros and cons of various parts choices, parts recommendations, and insurance-related issues. It takes about 10 minutes to complete the repair contract, which every customer signs.
Step #2: Prerepair Checklist. We conduct a physical walk-around of the vehicle along with the customer to assess 12 standard items outlined on our pre repair checklist. It's an opportunity to gather more detailed information. The checklist takes about 15 minutes to complete, and includes the following:
1. Check lights, horn, wipers and washer nozzles
2. Check door handles, mirrors, power locks and alarm key fob
3. Check dash lights and cigarette lighter
4. Check fuel level
5. Check vehicle mileage
6. Identify paint code
7. Identify wheel lock location
8. Acquire details of the crash
9. Identify the location of vehicle passengers at the time of the crash
10. Identify the payment method (customer-pay or insurance-pay)
11. Identify the customer's interest in additional work, such as paintless dent repair, mechanical repair, or other self-pay items
12. Identify how the customer heard about the shop
The checklist should be a living document at every shop because some items could vary between facilities. So build the document over time in a way that works for you. Shop owners should regularly assess whether any new information could be added to the checklist to prevent common delays during the repair process or customer complaints.
Step #3: Pre-existing Damage Diagram. The final step of the inspection routine is completion of a pre-existing damage document, which includes a diagram of a vehicle. We identify where any pre-existing issues exist on the vehicle, and note the information in the appropriate place on the diagram. Every customer signs and dates that document to verify they were aware of those issues in advance.
Documenting pre-existing issues this way ensures customers won't blame us for certain imperfections. It also provides a convenient opportunity to upsell customers on additional unrelated items. Make sure you assess the vehicle thoroughly, though, because customers could hold you liable for damages that were not included on the document.
We use an iPad to complete the inspection routine, which is performed by our front office staff (every estimator and customer service representative is trained on the process). The iPad is linked directly to our management system where these three documents are housed. Customers sign each form on the iPad, and the information is automatically attached to the repair order and electronically saved in the management system. That's a much more efficient and organized strategy for completing, tracking and saving these forms, since paper documentation generates clutter and gets misplaced. Any employee who accesses the customer's file can easily refer to these forms at any time from any location.
This inspection routine has become very important and valuable to our company. Spending more time with customers up front to obtain this data reduces the need to call them several times throughout the repair, and eliminates work stoppages. This information is also needed to determine the best possible repair plan.
Related Articles
Developing a Marketing Plan
Developing a Vehicle Donation Program
You must login or register in order to post a comment.


text:
Like it or lump it
Said of an unpleasant outcome that one has no choice but to accept - one can either endure it willingly or endure it with suffering.
When we are given a fait accompli in a situation in which we would normally expect some sort of choice, we might not be too pleased about it. We may then be told to 'like it or lump it'. Had the expression been coined in the 16th century this is no doubt what Thomas Hobson would have said to his prospective customers when he offered them 'Hobson's choice'.
But how exactly do we 'lump' something? Although 'lump' is almost always used as a noun rather than a verb, there are many meanings of the verb form of 'lump' to choose from:
- To bet all of one's money on a single wager (first recorded in the 19th century)
- To make something into a lump (18th century)
- To classify various things as a group, i.e. lump them together (17th century)
- To slouch along lazily (17th century)
- To look sulky or disagreeable (16th century)
Of course, it is the last of these lumps that is the alternative to 'like it'.
'Lumping' in the sense of mooching about grumpily may well be of Irish origin and is first recorded in Richard Stanyhurst's Treatise Describing Irelande, 1577. The Dublin born Stanyhurst risked the wrath of his contemporaries by suggesting that the English rule in Ireland wasn't the source of all their troubles:
Here percase some snappish carper will snuffinglie snib me for debasing the Irish language: because that by proofe and experience we see, that the pale was neuer in more florishing estate than when it was wholie English, and neuer in woorsse plight than since it hath infranchised the Irish. But some will saie, that I shew my selfe herein as friuolous... They stand lumping and lowring, fretting and fuming.
[Note: Stanyhurst's expressive phrase'snuffingly snib' means'rebuke in a snorting manner'.]
[Note: see also 'Beyond the pale'.]
Soon afterwards, in 1581, Barnaby Rich used the term in Farewell to Military Profession:
She beganne to froune, lumpe, and lowre at her housebande.
Rich was a naval captain and undoubtedly English, but most of his writing related to Ireland and he moved to Dublin to write on his retirement from the Navy.
People had been lumping it for a few hundred years before anyone thought of the phrase 'like it or lump it'. A play on words between the noun and verb usages of the word lump was what brought it about. The early uses of the expression refer to things that have lumps in them, as in this example from the London magazine The Monthly Mirror, 1807, in a piece titled Rules For Punning:
Mrs....purposely sends a dish of tea to a lady, without sugar, of which she complains.
Mr....(Handing the sugar basin) - Well, ma'am, if you don't like it, you may lump it.
The English love of wordplay is long lasting, some might say chronic, and Zadie Smith made the same little joke in her novel White Teeth, 2000:
We're all English now, mate. Like it or lump it, as the rhubarb said to the custard.
The first example that I can find of the precise 'like it or lump it' wording of the expression is in Specimens, 1841, Josiah Shippey's book of morally uplifting essays, which were delivered in the form of tortured rhyming couplets, worthy of William McGonagall:
Yet his merit, though some may be ignorant of it,
And as he by it wishes each one may profit;
Imperiously forces, or like it or lump it,
Himself, honest fellow, to blow his own trumpet.

source: HuggingFaceFW/fineweb-edu


text:
learningCloud introduces a new tool for event management that allows authors to create sessions to schedule virtual and face-to-face classes.
The main features of this new functionality are:
- Ability to create virtual sessions
- Ability to create face-to-face sessions.
- Create and assign physical locations to face-to-face classes.
- Add attachments to share between users.
- Ability to integrate with video conferencing tools for seamless session creation.
- Registration of users or groups of users.
- Creation of self-registration sessions.
- Enable evaluation with cut-off criteria.
- Register attendance.
- Check the status of users in the sessions.
- Filter by student, group or completion status.
- Export report in CSV.
- Possibility of assigning permission to the teacher to record attendance and evaluation, and uploading attachments.
With an intuitive interface and from one place, you can create units to structure the Events, add attachments, evaluation and much more.
From the interface itself, it is possible to assign which user will assume the teacher's role for a given session. This role will be able to register the attendance of the users, as well as evaluation capabilities, if the session is assessable.
Users can access their Events directly from the learningCloud portal, and attend both the events in which they have been registered and those with free registration that they are interested in.
From its portal, the user can:
- add their sessions to their personal calendar
- download teacher attachments
- access the session link
- check the location of the physical sessions
- check the score and attendance of past sessions.
The administrator of the platform can access reports on all published events. Among the data available are:
- check the student's status regarding the completeness of the sessions.
- filter by status and/or group.
- check the score and attendance of users.
- export the data in CSV format.
Customer support service by UserEcho


What Is Another Word For Disgruntled?
What is lachrymose?
1 : given to tears or weeping : tearful tended to become lachrymose when he was drunk.
2 : tending to cause tears : mournful a lachrymose drama..
What is the antonym for payment?
Antonyms of PAYMENT whole, evasion, penalty, debt, nonremittal, underpayment, nonpayment, default.
What do you call a one time payment?
one-time cash assessment. flat rate. flat rate payment. flat-rate payment. gratuity.
What is the opposite of enjoy?
enjoy. Antonyms: dislike, disrelish, suffer, loathe, forfeit, lose, tolerate, endure. Synonyms: like, relish, possess.
What's another word for upset?
Some common synonyms of upset are agitate, discompose, disquiet, disturb, fluster, and perturb. While all these words mean "to destroy capacity for collected thought or decisive action," upset implies the disturbance of normal or habitual functioning by disappointment, distress, or grief.
What does disgruntled mean?
unhappy and annoyedEnglish Language Learners Definition of disgruntled : unhappy and annoyed.
What is it called when someone does something on purpose?
deliberately; on purpose; intentionally; deliberate; intended; conscious; premeditated; wilfully; with intent; willfully; purposely; designedly; by choice; by design; advisedly.
What is the opposite of payment?
What is the opposite of payment?nonpaymentevasiondefaultingfailureavoidancedefaultbankruptcydelinquency
What is the opposite of purposely?
Opposite of intentionally, with full intent. accidentally. fortuitously. inadvertently. unintentionally.
Are upset and sad the same thing?
"Upset" is a little stronger than "sad". It implies that your emotional balance is disturbed by the event. Upset may also include emotional responses such as anger and not just sadness. "Sad" is the opposite of "happy." "Upset" is the opposite of "calm." You're sad to hear of your aunt's grave illness.
What do you call someone who is not happy?
Is it purposely or purposefully?
When you use purposely in a sentence, it should be synonymous with intentionally and on purpose. … When you use purposefully in a sentence, it should mean "in a way that shows determination and resolve" or, put more simply, "full of purpose." The opposite of purposefully would be close to negligently or carelessly.
What's another word for payment?
Is Unhappy a word?
adjective, un·hap·pi·er, un·hap·pi·est. sad; miserable; wretched: Why is she so unhappy? unfortunate; unlucky: an unhappy incident. unfavorable; inauspicious: an unhappy omen.
What is the opposite word of unhappy?
Wiktionary. unhappy(adjective) Antonyms: joyful, delighted, happy, joyous, exuberant, glad.
What is a synonym for upset and sad?
upset – adjectiveFeeling angry or annoyed. angry. annoyed. mad. irritated. fed up. put out. displeased. cross. belligerent. … Feeling sad or unhappy. sad. unhappy. gloomy. miserable. melancholy. sorrowful. subdued. bleak. wistful. … Feeling worried and nervous. worried. nervous. anxious. uneasy. tense. alarmed. on edge. frightened. troubled.
What's a synonym for disgruntled?
SYNONYMS FOR disgruntled grouchy, testy, sullen, grumpy, dissatisfied.
What is another word for purposely?
What is another word for purposely?deliberatelyintentionallywittinglyknowinglywilfullywillfullydesignedlypremeditatedlypurposivelyprepensely56 more rows


text:
area surface conversion
Amount: 1 square pole (sq pole) of area
Equals: 0.000025 Chinese píngfāng gōnglǐ (平方公里) in area
Converting square pole to Chinese píngfāng gōnglǐ value in the area surface units scale.
TOGGLE : from Chinese píngfāng gōnglǐ into square poles in the other way around.
CONVERT : between other area surface measuring units - complete list.
Conversion calculator for webmasters.
Area units calculator
Main area or surface units converter page.
Convert area surface measuring units between square pole (sq pole) and Chinese píngfāng gōnglǐ (平方公里) but in the other reverse direction from Chinese píngfāng gōnglǐ into square poles.
|conversion result for area surface:|
|1 square pole||sq pole||=||0.000025||Chinese píngfāng gōnglǐ||平方公里|
Converter type: area surface units
This online area surface from sq pole into 平方公里 converter is a handy tool not just for certified or experienced professionals.
First unit: square pole (sq pole) is used for measuring area.
Second: Chinese píngfāng gōnglǐ (平方公里) is unit of area.
0.000025 平方公里 is converted to 1 of what?
The Chinese píngfāng gōnglǐ unit number 0.000025 平方公里 converts to 1 sq pole, one square pole. It is the EQUAL area value of 1 square pole but in the Chinese píngfāng gōnglǐ area unit alternative.
How to convert 2 square poles (sq pole) into Chinese píngfāng gōnglǐ (平方公里)? Is there a calculation formula?
First divide the two units variables. Then multiply the result by 2 - for example:
2.529285264E-5 * 2 (or divide it by / 0.5)
1 sq pole =? 平方公里
1 sq pole = 0.000025 平方公里
Other applications for this area surface calculator...
With the above mentioned two-units calculating service it provides, this area surface converter proved to be useful also as a teaching tool:
1. in practicing square poles and Chinese píngfāng gōnglǐ ( sq pole vs. 平方公里 ) values exchange.
2. for conversion factors training exercises between unit pairs.
3. work with area surface's values and properties.
International unit symbols for these two area surface measurements are:
Abbreviation or prefix ( abbr. short brevis ), unit symbol, for square pole is:
Abbreviation or prefix ( abbr. ) brevis - short unit symbol for Chinese píngfāng gōnglǐ is:
One square pole of area surface converted to Chinese píngfāng gōnglǐ equals to 0.000025 平方公里
How many Chinese píngfāng gōnglǐ of area surface are in 1 square pole? The answer is: The change of 1 sq pole ( square pole ) unit of area surface measure equals = to 0.000025 平方公里 ( Chinese píngfāng gōnglǐ ) as the equivalent measure for the same area surface type.
In principle with any measuring task, switched on professional people always ensure, and their success depends on, they get the most precise conversion results everywhere and every-time. Not only whenever possible, it's always so. Often having only a good idea ( or more ideas ) might not be perfect nor good enough solution. If there is an exact known measure in sq pole - square poles for area surface amount, the rule is that the square pole number gets converted into 平方公里 - Chinese píngfāng gōnglǐ or any other area surface unit absolutely exactly.
Oven info & galleries
- Home Page
- Oven building CDrom details
- Pizza ovens
- New gallery
- Oven meals
- Vintage forum
- Rectangle shape vs. round igloo
- Building details
- Refractory concrete
- Heat resistant mortar
- Concrete cladding layer
- Thermal insulation
- Saving money & time
- Good thermometer
- Oven building 1
- Building oven 2


React Native Camera – Libraries Comparison
Dawid Przydróżny
Sep 14, 2021 • 8 min read
For a long time in the RN environment, not much has happened in the field of libraries to support the camera.
We all used React Native Camera (RNCamera) because it was the most polished and recommended by the React Native community, but it seems that it is standing still and does not plan any active development. Fortunately, a new library has emerged from around the corner that could patch the hole of useful camera libraries in the RN environment: RN Vision Camera.
What is React Native Camera?
React Native Camera (RN Camera) is probably the most well-known camera library in the RN environment. We shouldn't be surprised because the start date for this library was just after React Native's release. It grew up with RN and has fulfilled its role through the years. The library was promoted and recommended by React Native for a long time, so the community that uses it is substantial. It's still a good library for using the camera in your app, just install React Native Camera and enjoy the cross-platform camera module with photo and video recording functionality. At this point, you may start wondering why this article was written at all when this library is mature, useful, and has a great community. There are a few problems with RN Camera: it has stopped developing and improving, there is a problem with maintainers, and finally, with better and better cameras in our smartphones we need more functionality and a better API to get the most out of the camera on our device — in summary, the library has become a bit rusty.
React Native camera libraries comparison
At the moment there are only three sensible libraries for using the phone's camera in RN apps, these are:
- Large community, mature product.
- Easy setup with just one additional step (permissions).
- Can be used with Expo.
- Good documentation with recipes.
- Valuable props to set autofocus, flash, ratio, white balance, exposure, zoom, and video quality.
- It is possible to switch between front and back cameras.
- Additional features like face detection, barcode detection, and text recognition.
- Library is actively looking for maintainers, which means it could be unsupported soon.
- Can't switch between all of the available camera lenses.
- There is no built-in UI, so everything must be implemented e.g. snap button.
RN Vision Camera
- Library is rapidly gaining popularity.
- Nice lifecycle mechanism that will keep the camera session if the app is in the background or the user is navigating to a different screen.
- The strongest point of the library — it can detect all device camera lenses and you can switch between them in the way you want.
- Each lens returns all possible formats you can use and additional props like min zoom, max zoom, it has torch, has flash, supports focus, supports raw capture, etc.
- There are some available presets that can be used (you can get lost with formats, it is usually around 60 of them available for each lens).
- It can take snapshots.
- Available frame processors — for example, it's possible to detect objects with the camera.
- Good documentation.
- Some additional installation steps needed like raise min iOS version, raise target Android SDK version, etc.
- Quite a fresh tool in the market, it will probably need some time to mature and release a really stable version.
- There is no built-in UI.
RN Image Picker
- Mature, popular, and maintained with a strong community.
- Simple to install and use.
- Can be used to pick already taken photos from the device.
- Can take a photo or even record video.
- Has a bunch of helpful props like max width, max height, media type, video quality, and duration limit.
- Only semi-good documentation.
- Limited possibilities for taking photos and recording video (but of course it's not the main purpose of this library).
Which RN camera library should you use?
For a simple app that will only use the camera to take a photo for a user avatar or record a short movie using default settings, the react-native-camera will be more than enough.
If you are building an app where the camera plays a bigger role and you need to get the most out of it, then go with react-native-vision-camera.
To select already taken photos that are stored in the phone's gallery, use the react-native-image-picker.
A strong point for react-native-vision-camera is the fact that react-native-camera is looking for maintainers, this will possibly make RN Vision Camera the default choice when it comes to a camera library for RN.
RN Vision Camera - implementation example (tutorial)
Below is an example of using the RN Vision Camera with basic tools to take a picture.
import React, { useRef, useState } from'react';
import { StyleSheet, Alert } from'react-native';
import { Camera, useCameraDevices } from'react-native-vision-camera';
import BottomButtons from './components/BottomButtons/BottomButtons';
import ImagePreview from './components/ImagePreview/ImagePreview';
import TopButtons from './components/TopButtons/TopButtons';
function App() {
 const camera = useRef(null);
 const [previewImage, setPreviewImage] = useState(null);
 const [showPreview, setShowPreview] = useState(false);
 const [torchActive, setTorchActive] = useState(false);
 const [frontCamera, setFrontCamera] = useState(false);
 /* Here we use hook provided by library to take available devices (lenses) */
 const availableDevices = useCameraDevices();
 /* useCameraDevices hook returns an object with front/back properties,
 that you can use to switch between back and front camera */
 const currentDevice =
 frontCamera && availableDevices?.front? availableDevices.front : availableDevices?.back;
 const takePhoto = async () => {
 try {
 const result = await camera.current?.takePhoto();
 if (result?.path) setPreviewImage(result.path);
 } catch (e) {
 Alert.alert('Error: ${e}');
 const flipCamera = () => setFrontCamera((prevState) =>!prevState);
 const toggleTorch = () => setTorchActive((prevState) =>!prevState);
 /* There is an additional check to prevent errors.
 Camera component needs a valid device prop,
 we need to stop rendering if the device is falsy value. */
 if (!currentDevice) return null;
 if (previewImage && showPreview) {
 return setShowPreview(false)} />;
} return (
torch={torchActive? 'on' : 'off'}
showPreview={() => setShowPreview(true)}
); } export default App;
Is it hard to create a UI in RN Vision Camera?
As we can see, not that much effort is needed to create a well-known standard camera UI in your app. With a minimal amount of code we have added the following buttons on the screen:
- Capture (center)
- Preview latest photo (left)
- Switch to front camera and vice versa (right)
- Flash (top-right)
This is only a small piece of the functionality that RN Vision Camera offers. There are a lot more options that can be used like zooming, recording, switching to wide-angle and telephoto lens, selecting photo/video format, setting video frame rate, and more.
React Native Vision Camera – my opinion
RN Vision Camera is really impressive when it comes to the possibilities it offers.
I can recommend it if you are looking for a functional camera library to use in your application.
This will be my choice for the camera library in my next project.
More posts by this author
Dawid Przydróżny
Codestories Newsletter Check what has recently been hot in European Tech. Subscribe now


[ smit-n ]
/ ˈsmɪt n /
Save This Word!
struck, as with a hard blow.
grievously or disastrously stricken or afflicted.
very much in love.
a past participle of smite.
Question 1 of 7
Meet Grammar Coach
Meet Grammar Coach
Improve Your Writing
Origin of smitten
Middle English word dating back to 1200–50; see origin at smite, -en3
un·smit·ten, adjective
What does smitten mean?
Smitten is most popularly used to mean deeply in love.
It can also mean infatuated due to being extremely impressed or fond of someone or something, as in I'm just smitten with your new hairstyle or She's smitten with her new granddaughter. Another way to say any of these things is in love.
In a more negative sense, smitten can mean severely or intensely affected or afflicted, such as by illness.
All of these senses derive from the fact that smitten is the past participle of the verb smite, which means to strike, damage, injure, attack, or afflict. While smite is often associated with archaic uses (such as its use in the King James Bible to refer to the wrath of God), most senses of the word smitten don't have this association.
Example: I can tell just by the look in your eyes that you're smitten. What's his name?
Where does smitten come from?
The first records of smitten come from the 1200s. The verb smite is recorded earlier, before 900. It derives from the Middle English word smiten and is related to several Germanic words, like the Old High German smīzan, "to smear," and the German schmeissen, "to throw." Smitten is the past participle of smite is the exact same way that bitten is the past participle of bite.
The most common use of smitten is to imply that someone is in love, especially so deeply that it's just obvious—a person who's smitten in this way is always smiling. People also use smitten to express that they're infatuated with something or have a strong (and often new) fondness for it. People are usually smitten with a new puppy. A fashion critic might say they're smitten with a designer's new collection.
Similar ways of saying this are in love with and taken by. You can be smitten with things, but you can also be smitten by things, meaning you're strongly affected by them, as in I was completely smitten by her charm. Often, this sense of the word applies to negative situations, such as being smitten by the flu. In these cases, smitten is very similar to the word stricken or afflicted.
Smitten can still be used literally as the past participle of smite (in which case it means "struck down"), but this is much less common.
Did you know...?
What are some other forms related to smitten?
 - smite (verb)
 - unsmitten (adjective)
What are some synonyms for smitten?
What are some words that often get used in discussing smitten?
How is smitten used in real life?
Smitten is most commonly used to imply that someone is in love, but it's also often used to refer to an infatuated fondness.
Try using smitten!
Which of the following words is NOT a synonym for smitten?
A. affected
B. infatuated
C. indifferent
D. taken
Example sentences from the Web for smitten
British Dictionary definitions for smitten
/ (ˈsmɪtən) /
a past participle of smite
(postpositive) affected by love (for)


text:
grown in a dish
produced from stem cells
By Tina Hesman Saey
Scientists have grown a mouse pituitary
gland for the first time from embryonic
stem cells. Or rather, the gland grew
itself after researchers coaxed embryonic stem cells to form the type of tissues that normally surround the gland.
The feat, reported online November 9
in Nature, could be the first step toward
replacement pituitaries for people.
Glands grown in lab dishes may also
help researchers learn how the organs
develop in the body.
"There's a lot in it to be excited
about, whether you're a developmental
biologist or interested in clinical applications," says Sally Camper, a developmental geneticist at the University of
Michigan in Ann Arbor. Camper has
tried, and failed, to coax embryonic stem
cells to form pituitary glands.
Precursors of hormone-producing pituitary endocrine cells (red) form among
more primitive cells (blue-green).
complete with the five different types
of hormone-producing cells found in a
naturally formed gland. The dish-grown
gland secretes one of those hormones,
adrenocorticotropic hormone, both in a
lab dish and when transplanted in mice.
Sasai says his group is testing to see if
lab-grown glands can make other pituitary hormones.
Science News Prime
Available now for the iPad
in the iTunes App store.
Y. SASAI/RIKEN CENTER FOR DEVELOPMENTAL BIOLOGY
Visit sciencenewsprime.org for more information.
A new way to get the latest reports from
the frontiers of science, brought to you
weekly from the staff of Science News


text:
NURSE RESILIENCE AT DIGNITY HEALTH IDENTIFYING SOLUTIONS TO ADDRESS NURSING BURNOUT
How might we increase the resilience and reduce burnout of nurses by changing their work practices?
Nurses work in complex and demanding environments. HopeLab and Dignity Health partnered to identify opportunities to reduce stress and grow providers' engagement and energy. Over the course of six months, HopeLab collaborated with nurses to generate ideas to promote resilience in their work practices.
HopeLab's work commenced by shadowing and interviewing nurses to understand their work environment and their lived experience. We used behavioral science research to understand how the work environment contributes to both resilience and burnout. Floor nurse and nursing leadership developed and prioritized intervention ideas. This human-centered design process put the lived experience of nurses and the interests of stakeholders at the center of the innovation process to identify solutions to address nursing burnout including:
Unit-based Digital Forum: an online, secure communication channel providing a safe space for nurses to discuss topics, raise questions, provide feedback, and develop ideas for solutions.
Debriefing Codes Card: a facilitation guide for hospital staff to lead their colleagues through a debrief after a code aimed at increasing clinical improvements and supporting staff emotional well-being.
Weather Report of the hospital: a quick snapshot of important data about the hospital and hospital floors – from number of patients waiting in the ER to the number of nurses, patients, and sick calls on each floor—to support nurses in prioritizing their time and expand their identity to encompass the whole hospital.
"This was an energizing process for the nurses. We heard that it is difficult to stay positive in their daily work. The storytelling from the nurses was valuable itself. "
"For me understanding what keeps the nurses practicing with passion and heart is so important to our success now and into the future. Our shared vision for how staff stay engaged and energized by their work through a greater sense of purpose and empowerment is critical to the profession of nursing."
"I think one of the biggest things in nursing is that they teach you to have compassion for the patient, tend to the patient's needs, and there's always this focus of doing everything you can for them, but there's a lot that's not recognized for the nurses themselves."


text:
Cyan ( also to be found in the letters cyan) generally refers to a lying to green at the transition from blue hue. The term is used mainly in technical and artistic applications and is very rare in everyday speech. Here lacking a commonly accepted and definable color category cyan ( in contrast to the past to yellow at the transition from red orange). In ordinary language is the common name turquoise, however, the so called, lying between blue and green color in all shades of cyan congruent.
- 3.2.1 color stimulus
- 3.2.2 Hue same spectral
- 4.1 When the color mixing
- 4.2 Complementing
- 8.1 In nature
- 8.2 In everyday
- 8.3 Colour Psychology
Precise significance of the color name only in special applications, such as
- As a colorimetrically defined color, especially as a printing ink in four-color printing (printing cyan) and
- Than a specified computer applications for web color ( cyan Web );
In the article, the meanings should be clarified.
Assigns to print cyan and web Cyan the same hue wavelengths, one obtains the wavelength range from 482 nm to 492 nm in some books -to-find information of a cyan assigned spectral types vary and are only in the particular context useful example for 487 nm to 492 nm at Norbert Welsch or 480 nm to 510 nm at Franz Wenzel.
The word cyan goes back to Greek κúανoς, which is a deep, dark blue called (steel blue, black blue).
As newer language development of the color concept cyan especially through the Euro scale and fashionable design configurations is introduced in German. In the RAL color system, which was in its infancy in the mid-20th century, there is no category cyan hues. However, color names are included in the composition with turquoise. The turquoise colors are incorporated in the category of green.
Cyan defined as colorimetric color
The colors listed below are colorimetrically defined colors, their appearance is set for certain types of lighting and viewing conditions clearly on measured values.
Cyan as the base color in four-color printing
Cyan is the name of the standard ISO 2846 and ISO 12647 ink of the fourcolor printing. It is usually performed as a print or Cyan Process Cyan. Defines the color appearance of the printed color in daylight standard light D50. The appropriate for the physical printing ink pigment is the beta modification of copper, creating a greenish variant of phthalocyanine is formed.
According to ISO 2846-1 pressure has cyan (0 ° / 45 ° geometry) for a 2 ° CIE standard observer at specified pressure process the following color values :
The color is also after any adjustment to the viewing conditions outside the sRGB gamut, so it can not be represented on a computer monitor in the rule. It can only be attempted as much as possible to approximate the appearance of color on the screen.
Representation of color in sRGB
Various visualizations of printing cyan in sRGB can be found (such as a color pattern on white background ), about
If one uses the color model CIECAM02, a gamut mapping can be realized in sRGB by chroma - reduction, which is optimally adapted to the perceived color. When using the software LittleCMS with the parameters
- Source: ( c.whitePoint = ( 85.30, 88.77, 67.90 ) ( paper); c.surround = AVG_SURROUND; c.D_value = 1; c.La = 318; c.Yb = 20),
- Target: ( c.whitePoint = ( 95.04, 100.00, 108.90 ); c.surround = DIM_SURROUND; c.D_value = 0; c.La = 16; c.Yb = 20)
Arises in iterative chroma reduction, the sRGB color with hexadecimal triplet # 0D8BB1.
Same color spectral color
There are different ways of color colorimetrically defined pressure Cyan assign a shade same spectral color. The association in the color model CIECAM02 by increasing the chroma results in a wavelength of 482 nm Assignment by subtraction of white D50 within a physical color space results in a wavelength of 486 nm
Cyan as web color
For the design of web pages exist in HTML4/CSS/SVG a standardization of English color identifiers for defined web colors. The color names cyan and Aqua both stand for the web color sRGB hexadecimal triplet # 00FFFF, ie the additive mixture of blue and green within the sRGB color space, each with the maximum possible proportion. This corresponds to the HSV hue angle H = 180 °.
Particularly on the Internet, the standard color names have such a dominant position that many, even nontechnical authors with the web color Cyan Cyan mine. To avoid misunderstandings are the names web cyan or cyan computer preferable in an unclear context. In English, for this case occurs the use of Electric cyan.
The direct conversion of sRGB color values using the given in the specification of sRGB formulas yields the tristimulus values of the color, which you can view as to D65 adapted relative color. A chromatic adaptation to Bradford provides these values under adaptation to D50.
By using CIECAM02 ( for comparability with the same parameters as above) one obtains the following tristimulus values, which describe the theoretical phenomenon of web - cyan color as printed on white paper:
Same color spectral color
There are different ways of colorimetric color defined web Cyan assign a hue similar spectral color. The association in the color model CIECAM02 by increasing the chroma results in a wavelength of 490 nm Assignment by subtraction of white D65 within a physical color space results in a wavelength of 492 nm ( 491 nm ).
Cyan in color theory
Wherein color mixing
In an additive color space, with the primary colors red, green, blue (RGB color space) means the secondary color cyan, which is formed from the additive combination of green and blue.
In a subtractive color space with three primary colors with a large target gamut, these primary colors usually bear the name of cyan, magenta and yellow ( CMY color model).
As a complementary color
In various color theories Cyan is the complementary color to red
Cyan as a color category and relative tonal range
In many color graduations and color systems cyan is used as a contrasting color name, which is often omitted colorimetric definition of the tonal range. Should include what colors cyan is thus to open up about only by comparison with the surrounding color categories.
There are ( limited to blues and greens ) to find among others the following color classifications:
- Blue, cyan, green ( in both of the additive such as the subtractive color mixing of three primary colors as a list of all the primary and secondary colors )
- Blue, greenish blue, cyan, bluish green, green at Welsch there with actual notice for coloring same wavelength ranges.
- Indigo, cyan ( blue), green in color theory of Helmholtz
- Violet-blue, cyan, green with Harald Küppers
- Violet-blue, ultramarine blue, cyan, green in color theory of Newton
- Ultramarine blue, cyan, blue green, yellow green reflected in the color selection of the 12-part color paint box.
Related color names
Related, the brightness non-limiting color names are about turquoise, aquamarine, blue-green and green blue.
It leads to the following picture of the use:
- If the name is used contrasting, cyan referred to Germans in general a bluer hue than turquoise, aquamarine and blue-green.
- The term Green Blue is rarely used.
For bright colors and pastel colors from the cyan hue range 482 nm to 492 nm, the color names light blue, sky blue and are - to find Aqua - particularly in the textile sector.
For dark color variants of the cyan hue range 490 nm to 500 nm, the color names blue-green or sea green, more recently, the English names Petrol ( fashion area) and Teal are common ( web color ). Teal is the standard name for the web color that comes from web Cyan by reducing the brightness ( sRGB hexadecimal triplet # 008080 ). In English also means Teal Teal, and the color name is probably derived from the color of the eyes of teal.
Classification as blue or green
Cyan is located on the border between blue and green, the web is cyan greenish than the pressure - cyan. Since Cyan is not a commonly used color category, the corresponding colors in everyday life the color categories blue and green (and possibly turquoise ) assigned.
Occurrence and use of color
Cyan occurs in nature due to certain refractions before and sky, water and ice color.
- A medium cyan is often used as Beck color in swimming pools, the popular water color.
- In fashion a bright mid cyan light women tops is popular ( Aqua ).
In color psychology Cyan stands for clarity and openness of mind, but also coolness and aloofness


text:
For more than 5 years Playscan AB has been actively providing Responsible Gambling solutions. Professor of Clinical Psychology at Stockholm University, Per Carlbring, with his extensive expertise within online-based self-help programs, has received funding for an independent evaluation of Playscan™.
– Playscan is a very interesting tool and we need to evaluate and analyze the true value of Playscan™ as a proactive Responsible Gambling Solution. We need to find out if and in what way it works, says Carlbring.
Per Carlbring states that it is vitally important to evaluate the effectiveness of Responsible Gambling solutions to understand the social gains and impact it might have. We need to deepen, Carlbring continues, our knowledge and methods about how to reduce the negative effects of gambling.
The Playscan CEO Ann-Sofie Olsson welcomes the evaluation and thinks that we all gain valuable information through new scientific research on how to prevent unhealthy gambling behavior. She says:
– We do recognize the importance of an independent evaluation to diagnose the reliability of what we do and understand after our 5 years in this field.


Whitesmoke Icon
Last version: 1.0.64
WhiteSmoke is a writing assistant for Android devices. This app helps users to correct mistakes, punctuation and style.
Whitesmoke Homepage
Writing correctly
Firstly, you can upload any text and check it for spelling, grammar and structure errors. The categories include contextual mistakes, tense agreement, missing prepositions, incorrect determiner and wrong punctuation marks.
Conveniently, each type of mistake has different colors. Therefore distinguishing problems is easy. After that, it is possible to review and apply the suggested corrections. Additionally, you may find given explanations and definitions in the enrichment section.
Similarly, users can polish their writing style with tips from the system. You are able to use the redacted version anywhere you need. There is a copy to clipboard button as well.
If you are not a fan of typing the text yourself, there are powerful modern tools like Otter. It is a speech recognition utility that allows users to record meetings, transcribe them and automatically create notes.
 - a detailed explanation of errors and writing style correction;
 - ability to view and apply corrections without retyping;
 - the app is free to download;
 - compatible with current Android versions.
Show More Hide
Latest Version
Publish Date
No comments yet
Write a comment
1 Star2 Stars3 Stars4 Stars5 Stars


Recently Microsoft support has fielded inquiries from several customers asking how to troubleshoot problems that cause delays during the boot and user logon processes on a desktop or laptop. The Windows Performance Toolkit xbootmgr.exe tool works well for troubleshooting boot and startup issues on a single machine. (See "Diagnose Shutdown Problems with Xbootmgr" for more information about using xbootmgr.exe.) But what if you're a large enterprise with thousands of desktops? You need a way to identify problem machines before a user reports them to the Help desk. You need to monitor desktop startup times over time and across the enterprise. And you need a way to collect boot time measurements, similar to those collected by xbootmgr.exe, from every machine for every boot. Here, I'll explain how you can use an event log, the new Windows 7 Event Viewer, and the Wevtutil tool to do these things.
A New Event Log to Aid in Troubleshooting
Beginning with Windows Vista, Windows now includes a new category of event logs: Applications and Services logs. The infrastructure underlying event logging now conforms to an XML schema. You can easily access the XML data for any event. The new event log interface lets you construct XML-based queries against event logs. The Event Viewer gives you to access to the new XML functionality in an easy-to-use graphical interface.
One of the logs in this new category is the Diagnostics-Performance/Operational log. This log contains events that record performance measurements similar to those provided by xbootmgr.exe. In fact, the data recorded is generated by the same mechanisms that Xbootmgr uses. Event IDs 100 through 110 record boot and startup performance statistics.
Using the Event Viewer in Windows 7
The new Event Viewer in Windows 7 lets you do more powerful filtering. The new UI lets you specify ranges of events. Under the covers, it builds the XPath query to filter out the events based on the criteria you specify. Figure 1 shows how you can filter for events 100 through 110. Figure 2 shows the XML version of the same query parameters. We're interested in Event ID 100 for the purposes of measuring the boot performance. Figure 3 and Figure 4 show the normal and XML views for event 100.
The XML presentation of the event contains a lot of interesting information. The BootTime value represents the number of milliseconds that elapsed from the time the system booted to the point after the user logged in that the system reached 80 percent idle for 10 seconds. The other time values listed represent the elapsed time for various stages during this boot process. You can find more information about the stages of the boot process in the Windows On/Off Transition Performance Analysis white paper.
The other boot performance events record information about specific events that contributed to delays during the boot/startup sequence. The trick is how to know which boot instance these messages belong to. This is where the ActivityID come in handy. In Figure 4, you'll see the following in the XML data:
All events related to this boot instance in this Event 100 record have this same ActivityID. By performing the following steps, we can use this information to create a more complex filter:
1. Click Filter Current Log… in the Actions Pane of Event Viewer.
2. On the XML tab, check the box Edit query manually, then answer Yes when prompted to continue.
3. Enter the following XML text into the query box:
4. Click OK.
Figure 5 shows a total of three events for this ActivityID. We can now examine these events to understand the problems that contributed to any boot/startup delays.
Collecting Data with Wevtutil
So far we've looked at only one boot instance. How do we collect data for all boot instances? By using Wevtutil, a Windows command-line tool for querying the Event logs. Using the following example, you can extract all the Event ID 100 records from the event log on a system:
wevtutil qe Microsoft-Windows-Diagnostics-Performance/Operational /rd:true /f:xml /q:"*\\[System\\[(EventID = 100)\\]\\]" /e:Events > boot.xml
This creates an XML data file that contains all instances of the boot performance event for a machine. With each ActivityID, you could then query for the other related events. For example, the following query extracts the same three event records we saw in Figure 5:
wevtutil qe Microsoft-Windows-Diagnostics-Performance/Operational /rd:true /f:xml /q:"* \\[System\\[(Correlation\\[_USER_='\\{00000001-0000-0000-1020-5CA87BB1CA01\\}'\\])\\]\\]" /e:Events > bootrelated.xml
Wevtutil.exe has many more options. Run the utility without any parameters to see a list of available options. For more information, see the MSDN article "Event Queries and Event XML." And for more information about learning XPath to define event queries, see XPath Syntax and XPath Examples.
Putting It All Together
Once you have the event data in XML format, it's fairly easy to extract the most interesting data points. Figure 6 shows some sample data I collected from one machine. In this example, I converted the time values to seconds. Differences in the number of applications that start at boot time could be significant when you're investigating changes in performance. With historical data like this, you can now begin to do some trend analysis. For example, this system was built on 1/13/2010. Application installations and configuration changes continued over the next couple of days. By 1/21/2010 the configuration changes had been completed. After that, the BootTime value was averaging about 124 seconds. However, notice that on 2/4/2010 and 2/9/2010 the times were significantly longer than average.
Extending the Value
Now that we have an automated way to extract the event data in XML form, we can collect this data periodically from multiple computers and store the results in a database. Using some simple reporting, it's easy to do trend analysis. A complete enterprise solution will require more code development and data management, but it's feasible. And that's exactly what one of my largest customers did.
Using a VBScript program I wrote, the customer collects event data into a SQL Server database. They've used this data to establish some baseline statistics for their desktop image build. They can pivot this data based on the hardware (e.g., memory, CPU, model) and software configuration. Using SQL Server Reporting Services, the customer built a dashboard view that displays the boot-time health status of all desktops in the enterprise. With specific reports, they can compare this baseline to new data collected after deploying new group policies, new security tools, or a hardware upgrade. They also use this data to proactively identify machines that take longer than the average baseline. This information allows IT to address issues before users call the Help desk, reducing the time to resolution and making end users happier.
Sean Wheeler ( is a senior premier field engineer in Microsoft's Premier Support team, assigned to support some of the largest enterprise customers. He is one of the original creators of the MPS Reporting tool. He specializes in scripting, debugging, and performance-related issues.


text:
Known at one time as "London's Harlem," the Paramount Ballroom, also known as the Paramount Dance Hall on London's Tottenham Court Road hosted Britain's first jitterbug competition in November 1939, "marking the first high-profile event for a dance craze that would soon sweep the nation. Famed not only for being the country's top destination to jitterbug, the Paramount is of much interest to historians for its mixed race clientele. Writing in 1946, social observer William Samson offered readers an electric account of the venue and the kinetic activities visible inside:
They throw each other away, then, magnetised, come together. Within this simple mathematical framework the improvisation thrives: legs are kicked in special ways, arms extended, the whole body bent in calculated distortion, the torso shivered in a movement half intendedly lunatic. One of the men throws his girl right over his shoulder – a sublime feat.
Popular dancing has a history of cultural interaction, offering dancers a means to exchange new styles of dress, music and movement, and with the popularisation of the jitterbug in the 1940s, the British dancing public were forced to negotiate new interpretations of how the body could and should behave. Considering the influx of black men from the British colonies and American armed forces during the 1940s, the jitterbug arrived at a time when many people were forced to re-assess the meanings of being both white and British.
The Paramount Dance Hall provides a case study which reveals and highlights wider questions of race in London during the Second World War and its immediate aftermath."
Excerpt from "Glitter and Glamour: Race and Dance in 1940s London", Kevin Guyan.


Soul retrieval
Soul Retrieval
When we experience a traumatic event, whether small or large, our spirit self can become fractured and a piece of it can leave. At this time, it is disengaged and inaccessible. This leads to a drop in the vitality of our physical, mental and emotional aspects. Disease becomes more likely, "dis-ease" inevitable.
The shamanic soul retrieval process involves the practitioner seeking out and returning these spirit or soul parts. This is done primarily in non-ordinary reality with the help of benevolent spirit guides. The result of this healing is typically an increase in vitality, energy and health.


text:
The grass is greener near greenspaces
A recent UGA study revealed that environmental protection equals additional property tax revenue-good news for local governments looking to preserve greenspace.
The study, conducted by UGA's Institute of Ecology, looked at a variety of greenspace types, including bike and pedestrian trails, parks, tree-protected neighborhoods and lands adjacent to streams protected by Part V of the Georgia Planning Act. It found that, in general, property values rise as a result of proximity to protected greenspace.
The areas studied included Sandy Creek Park in Athens-Clarke County, the Silver Comet Trail in Cobb County and properties impacted by either Fulton County's tree protection ordinance or Habersham County's riparian (stream) buffer law. Houses within 1,500 feet of wildlife habitats were found to generate from $70 to as much as $1,566 more per year in tax revenue than similar homes not adjoining such areas.
Such income could offset the loss in local revenue normally associated with protected areas, said the study's author, Nanette Nelson, because such lands are often tax exempt or taxed at a lower rate. With this kind of information, local governments that rely on property tax revenue might think twice before developing "unused" land, especially since residential developments, on average, do not generate as much in revenue as they require in services, added Nelson, an economist and policy analyst at the Institute.
"Governments also don't consider the indirect revenue that protected areas can generate," said Nelson, citing recreational, restaurant and other consumer businesses that prosper near protected greenspaces. "It would be useful to see if that income differs significantly from nonprotected areas."


[ Login ]
FS 260 Arson for Profit • 4 Cr.
Presents arson for profit through theory and case studies. Students learn procedures of investigating arson fires. Where and what to look for in determining motivation and method. Prerequisite: FS 120 or permission of advisor.
After completing this class, students should be able to:
 - Recall elements present in basic and intermediate fire investigation.
 - Describe a set of procedures used when investigating a potential arson for profit case.
 - Compare the different motivations in arson for profit fires.
 - Interpret insurance and financial records as it relates to arson for profit investigations.
 - Explain the insurance immunity act.
 - Describe the relationship between public, private, fire investigators and the insurance companies.
Footer Navigation
Contact info
Bellevue College
3000 Landerholm Circle SE Bellevue, WA 98007-6484 U.S.A.
Work: _PHONE_


text:
Adding VR titles from your device
If you have VR titles on your Android device, you can add them to VIVE Business Training.
- In VIVE Business Training, tap Add/Edit.
- Under Add/Edit VR Title, tap Confirm.
Add VR title from this device.
- Tap the Category field, and then select or create a category.
- Tap the Upload file field, and then select the APK file for the VR title.
- Tap the Cover image field, and then select the image to use as the cover thumbnail.
Title name and
About fields, enter a name and description for the VR title.
If you have screenshots of the VR title, tap
Advanced, and then do the following to add them to the title:
a) Tap Add. A new thumbnail will be created.
b) Tap. Tap Upload image, and then select the image you want to add. You can also enter a description for the image.
Repeat the above steps to add more screenshots.
- When done, tap Confirm to add your VR title.
- After you've added a VR title, VIVE Business Training automatically pushes it to the headsets.
- To edit a VR title, repeat steps 1 and 2, tap the VR title, and then tap Edit VR title. After making your changes, tap Confirm.


Malachite. Malachite is a Copper Carbonate Hydroxide and it is a semiprecious stone. The origin of the name goes to the ancient Greek word "malakos" or "soft." The color varies from light green to deep green and very rarely to greenish black. Several shades may appear in the pattern of a single stone.
In ancient Egypt, malachite was a symbol of the beginning and continuation of life. This is why the gem has been considered a guard-amulet since ancient times. It is a protector of children and childhood, it relieves nightmares, and it helps aid relaxation.


for a better solution though as this one is a bit heavy.
Edit: WARNING! This doesn't work in IE when selector is a string.
$.isEmptyObject('hello') // FALSE in Chrome and TRUE in IE
share|improve this answer
How often do you find yourself calling $() with an empty object as an argument? – nnnnnn Dec 22 at 11:24
_USER_ Actually never (I don't use jQuery anymore). But I guess 3 years ago I had a case of exposing an API that would take a selector and return the number of elements for that selector. If another dev would pass in an empty object, it would incorrectly respond with 1. – Oleg Dec 22 at 15:03
$(selector).length && //Do something
share|improve this answer
You could use this:
 exists: function() { return this.length }
if($(selector).exists()){do something}
share|improve this answer
I had a case where I wanted to see if an object exists inside of another so I added something to the first answer to check for a selector inside the selector..
// Checks if an object exists.
// Usage:
// $(selector).exists()
// Or:
// $(selector).exists(anotherSelector);
jQuery.fn.exists = function(selector) {
 return selector? this.find(selector).length : this.length;
share|improve this answer
You can save a few bytes by writing:
if ($(selector)[0]) {... }
This works because each jQuery object also masquerades as an array, so we can use the array dereferencing operator to get the first item from the array. It returns undefined if there is no item at the specified index.
share|improve this answer
How about:
function exists(selector) {
 return $(selector).length;
if (exists(selector)) {
 // do something
It's very minimal and saves you having to enclose the selector with $() every time.
share|improve this answer
I like this approach – Akmur Mar 18 at 14:13
if ( $('_TAG_').size() > 0 ) { //do something }
size() counts the number of elements returned by the selector
share|improve this answer
_USER_ I don't know where you get your information from, but.size() does nothing more than return.length. There's a reason it's deprecated – Ian Jun 3 '13 at 21:41
You are correct, but calling.length, being a property, requires slightly less overhead than a function call to.size(). My bad. – Furbeenator Jun 5 '13 at 18:30
I'm using this:
 $.fn.ifExists = function(fn) {
 if (this.length) {
Execute the chain only if a jQuery element exist - _URL_
share|improve this answer
Is $.contains() what you want?
jQuery.contains( container, contained )
The $.contains() method returns true if the DOM element provided by the second argument is a descendant of the DOM element provided by the first argument, whether it is a direct child or nested more deeply. Otherwise, it returns false. Only element nodes are supported; if the second argument is a text or comment node, $.contains() will return false.
Note: The first argument must be a DOM element, not a jQuery object or plain JavaScript object.
share|improve this answer
NOW it is an answer – mplungjan Dec 17 '13 at 8:49
i always use
if ( $(selector)[0] ){}
thats nice and short
share|improve this answer
The reason all of the previous answers require the.length parameter is that they are mostly using jquery's $() selector which has querySelectorAll behind the curtains (or they are using it directly). This method is rather slow because it needs to parse the entire DOM tree looking for all matches to that selector and populating an array with them.
The ['length'] parameter is not needed or useful and the code will be a lot faster if you directly use document.querySelector(selector) instead, because it returns the first element it matches or null if not found.
function elementIfExists(selector){ //named this way on purpose, see below
 return document.querySelector(selector);
/* usage: */
var myelement = elementIfExists("_TAG_") || myfallbackelement;
However this method leaves us with the actual object being returned; which is fine if it isn't going to be saved as variable and used repeatedly (thus keeping the reference around if we forget).
var myel=elementIfExists("_TAG_");
// now we are using a reference to the element which will linger after removal
console.log(elementIfExists("_TAG_")); /* null */
console.log(myel); /* giant table lingering around detached from document */
myel=null; /* now it can be garbage collected */
In some cases this may be desired. It can be used in a for loop like this:
/* locally scoped myel gets garbage collected even with the break; */
for (var myel; myel = elementIfExist(sel); myel.getParentNode.removeChild(myel))
 if (myel == myblacklistedel) break;
If you don't actually need the element and want to get/store just a true/false, just double not it!! It works for shoes that come untied, so why knot here?
function elementExists(selector){
 return!!document.querySelector(selector);
/* usage: */
var hastables = elementExists("table"); /* will be true or false */
if (hastables){
 /* insert css style sheet for our pretty tables */
setTimeOut(function (){if (hastables &&!elementExists("_TAG_"))
 alert("bad table layouts");},3000);
share|improve this answer
In JavaScript you can do it this way :
if(document.querySelectorAll('*')!=null) { // It exists }
share|improve this answer
I stumbled upon this question and i'd like to share a snippet of code i currently use:
$.fn.exists = function(callback) {
 var self = this;
 var wrapper = (function(){
 function notExists () {}
 notExists.prototype.else = function(fallback){
 if (!self.length) {
 return new notExists;
 if(self.length) {
 return wrapper;
And now i can write code like this -
 alert ("it exists");
 alert ("it doesn't exist");
What's more exciting about this stuff is how it's written in CoffeeScript:
$.fn.exists = (callback) ->
 exists = _USER_
 callback.call() if exists
 new class
 else: (fallback) ->
 fallback.call() if not exists
share|improve this answer
I find OP's original approach not only to be much more minimal but more elegant than this. Seems like overkill to write this much code when OP's method is shorter, and doesn't involve callbacks. – Lev Aug 5 at 7:31
For simple cases - you're right. But for more complex situations involving a lot of code on both cases i think my approach is better. – Eternal1 Aug 5 at 7:38
else as a property name will fail in some older browsers. – cookie monster Aug 14 at 17:34
protected by Andrew Barber Apr 8 '13 at 3:55
Would you like to answer one of these unanswered questions instead?


text:
Definition of Suppurate
Suppurate: To form or discharge pus. The adjective is suppurative, as in suppurative arthritis. The noun is suppuration, and is rarely used today. From the Latin puris = pus.Source: MedTerms™ Medical Dictionary
Last Editorial Review: 6/14/2012
Drug Medical Dictionary of Terms by Letter
Medical Dictionary Term:
Find out what women really need.


text:
|Student interns can learn fish identification during fish processing events
|Students involved in video experiments on burrowing crayfish behavior
Frequently Asked Questions
The crustacean collection represents over 37,000 specimens, while the fish collection
represents 17 Million specimens primarily from Indiana, the Midwest, and Southeastern United
States. The fish collection includes the second largest collection of larval and juvenile
stages of freshwater fishes in North America. Current projects include the completion of
the Fishes of Indiana and beginning the formation of the Crayfishes of Indiana. These
projects would require the incumbent to assist in the development of tables, figures, and
literature citations. Information will be included in the Surveys electronic database.
The Survey is a small group of research scientists, so the ability to follow directions
and work with minimal supervision is a must. The Survey is an affiliate of the Indiana
Academy of Science and is committed to the study of the flora and fauna of Indiana.
The Aquatic Research Center of the Indiana Biological Survey is a 501(c)(3) not-for-profit institution interested in the aquatic fauna and flora of Indiana. One of the principal missions of the Center is the training of students. Thus, the Center is committed to training, mentoring, and publishing with student interns and volunteers. Since the Survey is a small group of research scientists, the ability to follow directions and work with minimal supervision is a must. The Survey is an affiliate of the Indiana Academy of Science. There are many opportunities for current students, as well as graduated students.
Frequently Asked Questions
Back to top
- So what can I expect to get involved in with the Center?
- Past students have been involved in field research and worked in all 92 Indiana counties;
- Past students have worked outside Indiana with other researchers from other organizations;
- Students have conducted research projects with senior scientists and conducted their own original research;
- Students have published peer-reviewed journal articles;
- Students have assisted in the curation of the specimen collection;
- Students have worked on the collection database;
- Students have been involved in the fish processing events (THE Marathon of fish processing!);
- Students learn basic systematics, taxonomy, and scientific nomenclature;
- Students work in the library cataloguing articles and performing searches.
- What if I need to do an internship for my University degree? Can the Survey help me?
- Yes, the Center has sponsored over 40 students from a variety of college campuses. You do not have to be a student at Indiana Unversity to work with the Center; however, many of our students come from the Bloomington campus. Generally, these positions are known as internships and the Center will involve you in current research projects. The student agrees to 300 hours of service and in return the Center will provide a stipend, training, publication opportunities, and expense reimbursement for project related costs. Please contact the Center for a list of current projects and research opportunities since these opportunities change frequently.
- I qualified for Work Study can the Center hire me?
- The Center has funds set aside each year to hire undergraduate and graduate students. These students are paid directly by their University. These students are involved in the curation of the specimen collections and work directly with the Curators and Collection Manager in maintaining the specimens and in adding new material to the collection. Check with your University to determine the amount of funding support you are eligible for, then contact the Center with this information to see if there are opportunities. Opportunities change each semester so if you are unable to join us – continue to check back!
- What if I have already graduated?
- Students can take advantage of the student mentorship program. This program enables students to get valuable experience in aquatic studies so that they can improve their resume. The process includes mentorship by one of the senior staff members at the Center. The incumbent selects an area of research and then designs their project from the bottom up! Study design, sampling protocols, field collection of information, data analysis, manuscript preparation, and publication are all part of the experience. At the conclusion of the process, the student will have attained valuable experience that will benefit them in achieving their future professional goals.
Back to top
Back to Membership


text: The objectives of the paper are to first develop a measurement scale for Islamic attributes of destination and then to investigate the influence of Islamic attributes on overall tourist satisfaction. This study followed the sequence of steps that should be performed in developing measures of constructs. The measurement was tested and found to be both reliable and valid. The study found positive relationship between Islamic attributes of destination and overall tourist satisfaction. Important marketing implications are also presented. Copyright © 2013 John Wiley & Sons, Ltd.


Posted on
shelf life of hemp seed oil
What is the shelf life of hemp oil
The short answer is, if stored correctly, an unopened bottle of our hemp oil will last 14 months from the date of production. The long answer is there are several factors that can influence the shelf life of hemp oil. The major ones are how the seed is pressed, how the oil is packaged and how the oil is stored.
Pressing hemp oil to extend shelf life
Since the essential fatty acids in hemp are very susceptible to degradation and rancidity, producing a shelf stable oil starts with being very careful at the production stage. By ensuring that the oil has had minimal exposure to heat and to oxygen, the production of the oil ensures that the goodness that was available in the raw seed is retained in our virgin cold-pressed hemp oil. We do this through a production process that protects the essential fatty acids from exposure to oxygen by replacing the "air" in the production environment with pure nitrogen. In addition to protecting the oil from oxidation, we also ensure that the oil is kept well below the allowable temperatures required to be able to call the oil cold-pressed. These two factors enable us to produce a product that is as close as possible to mimicking the seed in it's ability to safeguard the oil. You might consider our method better, since seeds can get broken, allowing oxygen to access the oils.
Sealed jugs devoid of oxygen extend shelf life
The oxygen free environment doesn't stop at the pressing stage, we continue it right through to the bottling stage where the oil is maintained oxygen free and then the last bit of space in the top of the filled bottle is also replaced with nitrogen before the bottle is sealed with a foil topper and the lid is put on. These extra steps ensure that the oil will remain fresh for a long period of time after it has been placed in the bottle, literally for many months allowing us to set a best before date of 14 months from the date of manufacture.
Cold storage of the oil extends shelf life
Keep your oil cold. While we maintain an environment that is consistently lower than 15 C for short term storage of the products, we highly recommend you storing your oil in the freezer for longer term storage. One of the many wonderful benefits of hemp oil is that it will not turn to a solid at the temperatures reached in your home freezer so you can keep you oil there and it will still pour for you. There may be some separation of the naturally occurring waxes but this will just result in some cloudiness and is not something to be concerned about. It will not affect flavour or consistency when the oil warms.
Keep your oil cold and out of the light
The two things you need to be aware of after you get your oil is that you should keep it cool and out of the sunlight. Store the oil in the freezer for long term storage and in the fridge in the short term. The oil can withstand moderate temperatures, for instance while being shipped, without any significant degradation. For long term storage, just ensure you maintain a cold temperature.
Organic Hemp oil, Canadian hemp seed, Superior quality, best prices. Canada's #1 Hemp Oil retailer since 1996.
Cold Pressed or Refined Hemp Oil?
Hemp oil is referred to as the most perfectly balanced oil created by nature. This is due to the perfect balance of unsaturated Omega 3 and 6 fatty acids that cannot be found anywhere else. Hemp oil is also rich in vitamins, antioxidants, and other health beneficial substances. However, this only applies if the oil is cold pressed, as only unrefined hemp oil preserves all the nutrients contained in the hemp seed.
How is unrefined hemp oil made?
Unrefined, cold pressed hemp oil is obtained from hemp seeds with mechanical extraction at a low temperature that doesn't exceed 40 degrees Celsius. Cold pressed hemp oil is not chemically cleaned or bleached and the sediments are removed mechanically using filtration.
The shorter shelf life of cold pressed oil
Due to the lack of chemical treatment and absence of high temperatures, the active substances found in the seeds of the plant are also preserved in cold pressed oils. Because of this, the oil has a shorter shelf life and needs to be stored in cold places, and the supply chain between the manufacturer and the end consumer needs to be shortened as well. Incorrect storage and irregularities in transportation can make the cold pressed oil go bad faster. The first sign alerting you to any irregularities will be an unusual odor. Properly stored, fresh cold pressed hemp oil has a strong green color, as well as a strong but pleasant smell that resembles a mixture of freshly mowed grass and nuts.
Why is unrefined oil better than refined oil?
Refined oil has a cleaner appearance, with a lighter color, and does not contain small particles. Refining is a relatively complex process that includes treatment with chemical compounds and at high temperatures, reaching up to 270 degrees Celsius. The process removes most of the vitamins contained in the oil, as well as other health beneficial substances. Also lost in the process are Omega 3 and 6 fatty acids, which are the ingredients that give hemp oil the title of the most balanced oil. Refined hemp oil is primarily used in cosmetics, the production of various ointments and even plastics.
Two main reasons most cosmetics manufacturers decide to use refined oils
 - Refined oils last longer allowing for a longer supply chain between production and the end consumer, higher volumes of stock and lower risk for the manufacturer
 - Refined hemp oil is significantly cheaper than unrefined oil
At Hemptouch, we swear by unrefined, Cold Pressed Hemp Oil
All our products are based exclusively on cold pressed hemp oil. This is the only way to preserve all the beneficial substances that make hemp oil so popular in skin care. We realize this makes the shelf life of our products much shorter and that it affects the supply chain, which is a challenge in business, however, this helps us ensure our products are always fresh and of the highest quality.
Because we want to have full control over the ingredients used in our products, we make the cold pressed oil from our own hemp, grown on our field in Novo mesto, where we can observe its growth from seed to full-grown plant.
You might enjoy these
Facebook Instagram Youtube
 - About us
 - Imprint, Contact us
 - Terms & Conditions
 - Privacy policy
 - Affiliate program
 - Events & projects
 - Skin balms
 - Face care
 - Body care
 - CBD oils & sprays
 - Bundles & Samples
Sign up for our newsletter


This code identifies cases which contain component SNAP members and in which a discrepancy in the SNAP case exists.
Casework Action
 1. Identify the discrepancy in the case by the error message on the PAL.
 2. Review and correct the coding on Form 552 that caused the discrepancy. This includes, but is not limited to, the following factors:
 - unit composition;
 - the correct amount of income budgeted in the SNAP calculation;
 - the appropriate cross-reference case number in Item 60 for each member of the SNAP unit;
 - the number of people on the SNAP payee case for the component case matches the number on the Form 552 for the component case;
 - correct coding for SNAP in Items 15, 20, 22, 23, 60, 80, and 90.
 Contact other casework staff or the customer to obtain needed information, if necessary.
 3. Determine if a correction to Form 552 for the component case is required. If so, make the correction. If the component case is in a different caseload, initiate a referral to the appropriate supervisor for the change required.
 4. Determine the effect of any changes made on SNAP eligibility. Determine if an underpayment or overpayment occurred and take appropriate case action. Record the action taken on Form 514.
 5. When the discrepancy that caused the code to appear is corrected, the case no longer appears as Code F.


Configuring UrbanCode Deploy integrations#
Use UrbanCode Deploy applications in your deployments and pipelines.
Obtain a token from your UrbanCode Deploy server. When you create the UrbanCode Deploy token, specify admin as the user.
This task requires that you are an HCL™ Accelerate administrator.
After you configure an integration, create tasks to run UrbanCode Deploy applications during your deployments. You can also add applications to your pipeline stages and run them that way.
 1. Click Settings > Integrations > Plugins.
 A list of defined integrations with current information about each integration is displayed in a table.
 2. Click Add Integration for UrbanCode Deploy.
 3. In the Add UrbanCode Deploy Integration window, enter a name for the integration, and in the UrbanCode Deploy server URL field, specify the URL.
 The format is HTTPS://hostname:port. For example, HTTPS://sampleUCD:8443.
 Note: If you are running UrbanCode Deploy locally, you can substitute _URL_:port in place of localhost. The following graphic illustrates how to use the property:
 4. In the UrbanCode Deploy access token field, paste the token from UrbanCode Deploy.
 5. Click Save.
 The initial synchronization includes four months of data. Depending on the amount of data, this process can take some time.
Synchronization occurs every fifteen minutes but you can synchronize any time by clicking actions Actions > Resync on the Integrations page. To prevent synchronization, click the Disable/Enable field on the Integrations page.
Parent topic: Managing native integrations


text:
Most Active Stories
KRWG.ORG-The Region's Home Page
Tue December 16, 2008
Water Resources Conference
By KRWG News
Las Cruces – New Mexico State University is looking beyond the border to find
answers to one of the scarcest resources of the arid Southwest - water.
In January.experts from around the United States, Mexico and Israel will discuss similarities and problems of the Rio Grande and Jordan River basins.
The Rio Grande provides water for Colorado, New Mexico, Texas and Mexico.
The Jordan River supplies water in Israel, Palestine, Lebanon, Jordan and Syria.
The Rio Grande water shed is regulated by two different treaties
between the U.S. and Mexico.The Jordan River is also regulated by
treaties - peace treaties between adjacent countries after the 1967 Six Day War.
16 experts will speak.including Jean Parcher from the U.S. Geological Survey Mid-Continent Geographic Science Center in Austin, Texas.
Parcher has done research on transboundary geographic issues with an emphasis on the U.S.-Mexico border region.
The conference takes place on January 22 and 23 at NMSU.


I have been using a BNO055 sensor (9° dof IMU) for a project which will use angular velocity to move the mouse cursor on a PC screen.
So far, I have gotten quaternion output from the sensor and been able to convert it to angular velocity in a couple of ways. The first, multiplying 1 quaternion sample by its conjugate in the next sample, and then converting the quaternion Delta in Euler angles. The second, converting from quaternions to Euler angles and then finding the change in those between samples.
Both methods result in angular velocity measurement, but each with their advantages and disadvantages. E.g. Quaternion Delta between samples does not suffer from gimbal lock, but it's difficult to isolate pitch from roll.
I know that you can ask the sensor for angular velocity data directly, but apparently that's less precise due to the Gyro drift and it's relative orientation only, which is why I opted to work with quaternions.
Is there a better way to go about this?
My code included below for reference with the 2 approaches in case it's helpful/interesting. It uses the Adafruit repository for BNO sensor.
void quaternion_Delta () {
 // Quaternion data 1
 imu::Quaternion quat = bno.getQuat();
 // Euler 1
 imu::Vector<3> euler_one = quat.toEuler();
 //delay between samples
 // Quaternion data 2
 imu::Quaternion quat_two = bno.getQuat();
 // Euler 2
 imu::Vector<3> euler_two = quat_two.toEuler();
 // quaternion comparison
 imu::Quaternion quatDelta = quat_two * quat.conjugate ();
 imu::Vector<3> euler = quatDelta.toEuler();
 Serial.print(" X: ");
 Serial.print(euler.x()*radius_to_degrees, 2);
 Serial.print(" Y: ");
 Serial.print(euler.y()*radius_to_degrees, 2);
 Serial.print(" Z: ");
 Serial.print(euler.z()*radius_to_degrees, 2);
 // Euler comparison
 imu::Vector<3> euler_comparison = euler_two - euler_one;
 Serial.print(" x: ");
 Serial.print(euler_comparison.x()*radius_to_degrees, 2);
 Serial.print(" y: ");
 Serial.print(euler_comparison.y()*radius_to_degrees, 2);
 Serial.print(" z: ");
 Serial.print(euler_comparison.z()*radius_to_degrees, 2);
Edit: demonstration for quaternion Delta.
When quaternion current * quaternion home and transforming to Euler angles, we get the angular velocity between the 2 quaternions. Please imagine the sheet of paper to be the earth reference frame and to the watch the sensor's reference frame. With no yaw rotation, if with tilt the sensor up that causes a positive change in the y (pitch) axis. With 90° rotation of the sensor in the X (yaw) axis, however, a tilt of the sensor results in a change in the z (roll) axis instead.
My understanding is that this happens because quaternions are a representation of absolute orientation. So with any angle of rotation in the yaw axis we get a mixture of change in the pitch and roll axis whenever we tilt the sensor up or down.
This is what I mean that a change in sensor tilt (moving it up or down) results in a change in either/both the Y and Z axis.
enter image description here enter image description here
 - \$\begingroup\$ Are you trying to do the reverse of this operation? The link shows the formula connecting quat_two, quat and angular velocity. \$\endgroup\$ – AJN Apr 22 at 13:27
 - \$\begingroup\$ From what I can understand, which is not everything, I believe it slightly different from that post. Thank you for taking the time to respond. \$\endgroup\$ – Zhelyazko Grudov Apr 22 at 16:45
 - 1
 \$\begingroup\$ Can you show an example where it is difficult to isolate pitch from roll? I would also like to know why drift is an issue when using the rates directly from the IMU. \$\endgroup\$ – AJN Apr 23 at 12:59
 - \$\begingroup\$ I will edit my post with some pictures and explanation. With regards to the gyroscope drift, I'm not exactly sure if that happens or not. I just read that it is an issue if using only the gyroscope to detect angular velocity and that is why you would prefer to have sensor fusion. Maybe that is not the case and I misunderstood something? \$\endgroup\$ – Zhelyazko Grudov Apr 23 at 13:30
... which will use angular velocity to move the mouse cursor on a PC screen.
It is not clear if the angular velocity will control the cursor velocity or the cursor position. If the angular velocity is controlling the cursor velocity, then the cursor position will be affected by drift (due to the integration operation performed). However, this can be solved in software by passing the sensed angular velocity through a threshold operation (dead zone). The threshold is chosen to be more than the expected drift.
quaternion current * quaternion home and...
The first statement gives the impression that the IMU output is sampled with small time intervals and you are using the adjacent samples of quaternion. If this is the case, the angle between the two quaternion will be a small angle and the pitch/roll mixing problem doesn't arise (for sufficiently small sampling interval).
The second statement gives the impression that the current quaternion is multiplied with the very first sampled quaternion or a fixed home quaternion and not the immediately preceding sample. The angles between the quaternion can be large and pitch/roll mixing will occur.
... quaternion current * quaternion home and transforming to Euler angles, we get the angular velocity between the 2 quaternion.
No. we get the angle (or rotation) between the two quaternion. If we took the difference between two displacements, the result is also a displacement and not a linear velocity. If the two displacements were measured a very very small time apart and if you divided the difference by the time, then, that quantity is a (instantaneous) linear velocity. If the time gap was large, the quantity is average velocity.
For rotations, when the angle difference is large, we can still compute the average angular velocity by imagining the shortest rotation which will take one quaternion to the other. However, due to the inherent properties of rotation, you cannot avoid mixing between the channels.
Reconstructing the angular velocity from quaternion
Using the quaternion to reconstruct the angular velocity may still be a good idea since the IMU software might have used the accelerometers or magnetometers to cancel the drift in the angular velocity measurement.
From the linked answer, we have, by rearranging,
$$ \left[\begin{matrix} -q_x(t) & -q_y(t) & -q_z(t) \\ q_w(t) & q_z(t) & -q_y(t) \\ -q_z(t) & q_w(t) & q_x(t) \\ q_y(t) & -q_x(t) & q_w(t) \end{matrix} \right]^{-1} \frac{2}{\delta t} \left( \left(\begin{matrix}q_w(t+\delta t) \\ q_x(t+\delta t) \\ q_y(t+\delta t) \\ q_z(t+\delta t) \end{matrix}\right) - \left(\begin{matrix}q_w(t) \\ q_x(t) \\ q_y(t) \\ q_z(t) \end{matrix}\right) \right) = \left(\begin{matrix} \omega_x(t) \\ \omega_y(t) \\ \omega_z(t) \end{matrix} \right). $$
If I am not mistaken (be careful about the quaternion convention. Some use frame representation, some use rotation operator representation), the result will be in the frame of the IMU platform. You can convert this vector to the home axis frame by using the vector rotation formula.
 - \$\begingroup\$ Thank you for the detailed answer. I'll have a look through it and try to implement. \$\endgroup\$ – Zhelyazko Grudov Apr 23 at 18:30
 - \$\begingroup\$ I've been working on this project for the last couple of months. Just went over this answer again and realized how much of it went over my head. Thank you for taking the time. I'm still having trouble reconstructing the angular velocity from quaternions, or finding a way to work around pitch/roll mixing. Not sure if appropriate, but would you be willing/available for a paid consultation? \$\endgroup\$ – Zhelyazko Grudov May 18 at 8:48
 - \$\begingroup\$ Thanks for responding. I will post a new question, and see how it goes. \$\endgroup\$ – Zhelyazko Grudov May 18 at 13:03
Your Answer


Field (agriculture)
From Infogalactic: the planetary knowledge core
Jump to: navigation, search
A field of sunflowers in Cardejón, Spain
In agriculture, a field is an area of land, enclosed or otherwise, used for agricultural purposes such as cultivating crops or as a paddock or other enclosure for livestock. A field may also be an area left to lie fallow or as arable land.
Many farms have a field border, usually composed of a strip of shrubs and vegetation, used to provide food and cover necessary for the survival of wildlife. It has been found that these borders may lead to an increased variety of animals and plants in the area, but also in some cases a decreased yield of crops.[1]
In Australian and New Zealand English, any agricultural field may be called a paddock. If stock are grazed there, the space may be called a run, e.g. sheep run; cattle run.[2]
Image gallery
See also
 1. Carpenter, Brent; Dailey, Thomas V.; Jones-Farrand, D. Todd; Pierce, Robert A.; White, Bill. "Field Borders for Agronomic, Economic and Wildlife Benefits". Curators of the University of Missouri. Retrieved 1 November 2015.
 2. The Macquarie Dictionary run n. Def. 113