3
I am learning about the Crow's Foot notation, and there is something that I don't understand, some tutorials shows an Identifying Relationship as having a straight line, and a Non-Identifying Relationship as having a dashed line:
enter image description here
While other tutorials shows both relationships as having a straight line:
enter image description here
Are both notations correct?
 - 1
 What is this "other tutorials" you speak of? Can you provide one or more links? – Robert Harvey Nov 4 '16 at 20:07
 - @Robert Harvey This tutorial uses straight lines for Non-Identifying Relationships: college.yukondude.com/2003_09_comp210/html/…, while this tutorial uses dashed lines for Non-Identifying Relationships: codeproject.com/Articles/878359/… – Tom Nov 4 '16 at 20:46
 - That Yukondude article refers not to strong and weak relationships, but to strong and weak entities. I assume that he's indicating the Transcript as a weak entity with those little diagonal lines in the corners. But I also assume that's not necessarily standard notation. – Robert Harvey Nov 4 '16 at 22:30
 - @Robert Harvey What is this notation called (where a Non-Identifying Relationship is represented using a dashed line and an Identifying Relationship is represented using a straight line)? Is it called IE Crow's Foot or Martin Crow's Foot or Martin / IE / Crow's Foot? And does it have an official documentation? – Tom Nov 5 '16 at 13:18
1
The +O on the left side indicates it is non-identifying (optional) on the right side. This would be implemented as a nullable column on the right hand side. This is common to all tools I have worked with, and certainly the two tools you are working with.
The ends of the relationships have show two values (max and min) indicating the cardinality of the relationship for the table at the other end of the line. The min value has two possible cardinality values zero (O) or 1 (| or + ), The max value also has two possible diagrammed values 1 (| or +) or many (a crowsfoot). If either min value is zero, then the relationship is optional.
An identifying value must have a cardinality of (1-1). Some tools may show only one cardinality indicator for a (1-1) cardinality.
Some tools use dashed lines for optional relationships. Both notations are correct. I prefer the dashed lines format , especially when the diagram is large or busy. I have worked with tools that provide extensive capability to modify how the relationship lines are rendered such as modifying the linewidth, pattern and color.
 - I don't think so. – Robert Harvey Nov 4 '16 at 22:28
 - @RobertHarvey See my edit for an explanation. – BillThor Nov 6 '16 at 12:58
 - Are you saying that it has to be non-identifying on both sides (aka a zero on both sides) for the overall relationship to be called non-identifying (and therefore be represented by a dashed line)? Also, so by saying it is non-identifying, they are saying that a student does not have to belong to a school? Seems odd to me. How can you be a student if you are not enrolled in a school? – fgblomqvist Feb 24 '17 at 18:59
 - @fgblomqvist By non-identifying I mean that School would not be used to identify the student. Student would never identify a school. A non-identifying relationship does not need to be optional on either end, and may be a mandatory relationship. As diagrammed, a school is not required to have students (new school with no assigned students). Nor does a student need to be assigned to a school (new student not yet assigned to a school). – BillThor Feb 25 '17 at 5:45
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Everyone needs a little motivation and confidence boost once in a while. And one of the best ways to lift your spirits up is to listen to songs about power.
These songs tackle power in different ways; some artists associate it with prestige, and others see it more personally and emotionally.
Either way, this powerful playlist will certainly help you believe that you can do anything you set your mind to!
1. "Power to the People" by John Lennon and the Plastic Ono Band
During the 1960s, a common protest term that individuals used to voice their disapproval of the government and the Vietnam War was "Power to the People."
A conversation with political activists Robin Blackburn and Tariq Ali provided John and Yoko with the impetus to write a song that could be sung by the general public and utilized for political purposes.
The lyrics encourage the initiation of a revolution, the payment of employees with the wages they deserve, and the proper treatment of women.
2. "Power" by Kanye West
It's not a coincidence that this rap-rock blockbuster is one of Yeezy's most stirring compositions; in the first line, he informs us, "I guess every superhero needs his theme music."
Yeezy is one of the most popular rappers in the world right now. However, what makes "Power" such an interesting song is the way in which its words alternate from being conceited and cynical, and then being ambiguous and self-aggrandizing.
West raps on the chorus, "No one man should have all that power," and "The clock's ticking, I just count the hours." 'The clock's ticking, I just count the hours.' "Power" is Kanye West at his most bombastic and intricate.
3. "Power & Control" by Marina & The Diamonds
The Welsh singer Marina Diamandis used to perform under the stage name "Marina and the Diamonds," and it was under this guise that she recorded the song "Power & Control."
The track was included on Marina's second studio album, titled "Electra Heart," and it was the album's second single to be made available to the public.
In an interview, Marina noted that the song is about the unpleasant power struggle that some people feel in relationships, particularly when one person wants to have the upper hand.
In collaboration with Steve Angello, a former member of Swedish House Mafia, Marina penned the song.
4. "Soul Power" by James Brown
This record by James Brown was first published in three separate sections.
The first part was available in a lengthier version that was played live; however, the complete 12-minute version wasn't made available on a CD until 1996.
The term "soul power" refers to a spiritual strength that resides within a person; yet, the origin of this power and what it actually signifies might differ from person to person.
Regardless of how you feel about the topic being discussed, listening to this song might make you feel more positive and self-confident in general.
5. "People Have the Power" by Patti Smith
Despite the fact that it was released in 1988, a period when Smith was primarily focused on raising her family and was, for all intents and purposes, retired from her music career, "People Have the Power" has become a highlight of the punk icon's live concerts.
It's not hard to figure out why; it's an upbeat rock song with lyrics that seem more pertinent now than they ever have before.
When Smith sings, "People have the power to redeem the work of fools," she's conveying a notion that can be applied to a variety of different political events that are happening right now.
6. "Feeling Myself" by Beyonce and Nicki Minaj
Beyoncé and American rapper Nicki Minaj collaborated on the song "Feeling Myself," which was released as a single from Minaj's third studio album, The Pinkprint (2014).
It was written by both performers, while Hit-Boy was responsible for the production of the song.
Both MCs boast about their sexual abilities and their financial success throughout the cheerful track.
The song "Feeling Myself" was released as the album's third official single on May 18, 2015, and it was sent to urban radio stations in the United States on the same day.
The single received generally favorable reviews, with many of them appreciating the connection that Minaj and Beyoncé shared on the track.
The song was a commercial success, reaching number 12 on the Billboard Hot 100 list in the United States and the top 20 in a number of other countries.
On May 21, 2015, an accompanying music video created by Beyoncé and Ricky Saiz was made available for the first time on the internet.
It shows both artists strutting their stuff at various fashion establishments to show off their wealth.
7. "Higher Power" by Coldplay
This song is about the lead vocalist, Chris Martin, falling hopelessly in love with another person.
He has the impression that they have "got a higher power," which not only makes his life more joyful but also helps him get through the day.
This song will definitely take you to another place since it is influenced by the mainstream music of the 1980s, and the music video depicts a cyberpunk world in the far future, complete with aliens.
The song made its debut in 2021 and peaked at position 12 in the UK but only position 53 in the US.
8. "We Are the Champions" by Queen
You wouldn't think to expect modesty from a band called Queen, yet "We Are the Champions" isn't quite as boastful as you might imagine it to be.
While it's true that the chorus is full of heart-swelling splendor, the lyrics detail an appealingly theatrical victory over hardship, "I've had my share of sand kicked in my face, but I've come through."
It doesn't matter how hard you try to avoid singing along to this tune; researchers have already determined that it is the most infectious tune in history.
9. "Stronger" by Kelly Clarkson
Many of Kelly Clarkson's songs are about discovering your own strength, and "Stronger" is probably the most well-known of her songs that encourage positive self-change and personal growth.
The lesson may be learned from the proverb that says "What doesn't kill you makes you stronger."
Throughout her career, Kelly has had her fair share of detractors, yet she has managed to prevail in every situation.
People are urged to stand higher, even when they are by themselves. You don't necessarily have to be lonely just because you're alone yourself, because the day when someone leaves you is the beginning of a new beginning.
One of the best and most powerful breakup songs ever written, "Stronger" is all about reclaiming your power when a relationship has ended.
10. "Girl Power" by Shampoo
The band Shampoo wrote a song called "Girl Power" to honor the strength and independence of women.
The lyrics encourage female listeners to embrace who they are without apology and to resist the need to conform to the expectations of others.
The lyrics serve as a wonderful reminder that women are capable of doing everything they set their minds to. The song's lyrics discuss independent women who go for what they desire in life.
Girls not only need to be bold, but they also need to demonstrate to the world that they are capable of doing anything.
11. "Your Power" by Billie Eilish
If you're searching for fresh songs with power in the title, this one's for you.
Billie Eilish released "Your Power" on her 2021 studio album "Happier Than Ever", and it's arguably one of the most stunning tracks on the album.
It's slow-paced, gentle, and melancholic, and it talks about people who abuse their power and take advantage of others.
12. "Run The World (Girls)" by Beyoncé
Beyoncé has many songs about different sorts of power, but her most power-filled song is definitely "Run The World (Girls)".
Queen B knows how to write catchy pop hits that also deliver important messages. And "Run The World" is no different.
As she claims in one part of the song, her persuasion, and endless power can build a nation.
13. "Q.U.E.E.N." by Janelle Monáe and Erykah Badu
Another song you can add to your girl power playlist is Janelle Monáe's "Q.U.E.E.N.".
It's a simple, catchy, and groovy tune featuring lyrics about acceptance, diversity, and the power of a woman. And sometimes the real power of a song lies in its simplicity.
14. "Nina Cried Power" by Hozier
For Hozier, this song is about "crediting the legacy and the result of protest".
In a way, "Nina Cried Power" is truly a raw protest song that can be associated with many different topics and issues.
It's compelling, thoughtful, and emotional, and it's arguably one of his best works so far.
15. "Energy" by Sampa the Great
Another compelling song about power and legacy is "Energy" by the Zambian singer and rapper Sampa the Great.
Some songs are simply imbued with strength and strong but subtle energy.
And "Energy" is one of them – this song will make you feel more confident and determined from the very beginning.
16. "Take The Power Back" by Rage Against the Machine
"Take The Power Back" is undeniably one of the most popular rock/metal songs about power.
Some people refer

source: m-a-p/FineFineWeb


text:
|The LNG terminal is protected against waves from the North Sea by the Northern Breakwater, which has a limited crest height of NAP+2m. Especially during high water levels a significant amount of the wave energy will pass this breakwater and contribute to the wave climate in the LNG channel. With the numerical wave models SWAN and HARES Svašek Hydraulics has constructed a transfer matrix which converts the forecasted swell conditions at Europlatform and the forecasted water level at Hook of Holland into a swell wave height at the LNG terminal.
Other studies for Gate LNG were:
- metocean study (waves, currents, morphology, wind, sea water temperature);
- current modelling in the Gate channel;
- analysing the effects of cold water discharge;
- weather downtime assessment Gate terminal facilities;
- wave buoy measurements at both sides of Northern Breakwater to determine the amount of wave transmission;
- analysis of methods to improve the swell forecast system for Gate LNG.


text:
Metal-free hydrogenation catalyzed by an air-stable borane: use of solvent as a frustrated Lewis base.
Bottom Line: In recent years 'frustrated Lewis pairs' (FLPs) have been shown to be effective metal-free catalysts for the hydrogenation of many unsaturated substrates.This allows metal-free catalytic hydrogenations to be performed in donor solvent media under mild conditions; these systems are particularly effective for the hydrogenation of weakly basic substrates, including the first examples of metal-free catalytic hydrogenation of furan heterocycles.The air-stability of the most effective borane, B(C6Cl5)(C6F5)2, makes this a practically simple reaction method.
Affiliation: Department of Chemistry, Imperial College London, London, SW7 2AZ (UK) _URL_ MeSH
Related in: MedlinePlus
Affiliation: Department of Chemistry, Imperial College London, London, SW7 2AZ (UK) _URL_


text:
More Slideshows From petMD
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What's New Dog Cat
The Cure for Achy Joints
Just because your pet has arthritis doesn't mean they are necessarily incapable of exercising. Staying active actually helps many arthritic pets that suffer from achy bones and joints. It is, however, vital you follow these five exercise tips before you begin an exercise routine with your pet.
1. Consult Your Veterinarian First
A veterinarian will be better able to assist you in combining of exercise, diet, and medications or therapies which are targeted for your pet's individual needs. A veterinarian can also help monitor your pet's progress and identify any serious changes in health.
2. Go Low-impact
Light activities such as walking and swimming help strengthen muscles, keep ligaments and tendons flexible, prevent obesity and circulate blood to stiff joints. Keep them short but regular — 15-30 minutes of activities five days a week is a great start. Swimming is especially great for dogs with arthritis because the water supports much of the bodyweight and inhibits sudden excessive movements. Cats with arthritis, meanwhile, may not be as keen to get in the water but can participate in short sessions of gentle play. Just remember to avoid activities in which your dog or cat has to leap, jump, turn quickly or run. They can cause damage to your pet's joints.
3. Warm Up
A minute or two of walking or gentle playing before initiating low-impact exercise activities will help pets with arthritis move easier. It also helps reduce sprains, cramps, and muscle injuries as well as gradually increases their heart rate. If your pet is reluctant to start moving because of aching joints, try a little incentive like a small healthy treat or positive affection (petting, hugging, etc.). A positive exercise experience is a happy one.
4. Cool Down
Cool down periods are just as important as warming up for exercise. As your pet completes the exercise routine, they may be all wound up — jumping, running, or rough-housing. This is not good and can in fact be harmful. Try to calm them down and gradually reduce their heart rate to an optimal resting place. Cooling down also reduces stiffness and soreness by assisting the removal of lactic acids in the body. Massaging during "cool downs" improves the stiffness and muscle pain associated with arthritis too.
5. Watch for Signs of Exertion
Be sure to watch for heavy panting, pain or other signs of overexertion. If they do occur stop the activity immediately and consult a veterinarian. Pushing forward with the exercising can cause injury, especially if your pet isn't accustomed to a lot of activity.
Most Read Health Articles

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The Study of Self-image and Shopping Orientation by Female's
성인여성의 자기이미지와 상표이미지 및 쇼핑성향에 관한 연구
 - 류현주 (신라대학교 패션디자인 산업학과) ;
 - 홍금희 (신라대학교 패션디자인 산업학과)
 - Published : 2001.10.01
Cousumers developed self-image through clothing symbolic product for reveal one'self image. When consumers select particular brand of various brand in the market that congruent with one'self image. They have to continue image. In this purpose, the research model was constituted and the questionnaire was made, reviewing preceding studies on self-image, shopping orientation. As for the method of the research, 635 female consumers were the object for the data of this research. The major results of this were as follows: 1. The factor or real self-image was composed of four factors: the refined and deluxe image, casual and simple image, decorous and dressy image, quiet and feminine image. 2. The consumer with real self-image were classified three groups: the group of feminine and dressy image 288 persons, the group of casual image 167 persons and poor image 171 persons. In the consumer's classified real purchasing brand-image the group of feminine and dressy image was given higher score at feminine and refined and deluxe image, the group of casual image was given higher score at casual and active. 3. The factor of shopping orientation was composed of four factors: pleasant, planned, loyal, recreational shopping orientation. The group of feminine and dressy image was given higher score at pleasant and planned shopping orientation, the group of casual image was given lower score loyal and confident shopping orientation than the other group.
 1. 서울대학교 대학원 석사학위논문 소비자의 의복쇼핑성항과 점포애고행동에 관한 연군 김소영
 2. 신라대학교 대학원 석사학위 논문 남성집단의 의복추구혜택에 따른 정보원과 쇼핑성향에 관한 연구 김지현
 3. 서울대학교 대학권 석사학위 논문 의복 소비자의 자기이미지 특성에 따른 제품속성 중요도와 추구혜택 김혜라
 4. 서울대학교 대학원 석사학위 논문 상황적 자기이미지에 위한 의류시장 세분화 오정선
 5. 패션 마케팅 이은영
 6. 서울대학교 대학원 석사학위 논문 상표이미지와 자아이미지에 관한 연구 정근택
 7. 한국의류학회지 v.20 no.1 의복과 자기 이미지 정인희;이은영
 8. 99 바이어가 뽑은 최고의 브랜드 no.167 Text Herald 주간지
 9. Journal of Marketing Research v.6 no.2 Congruence Relationship Between self-Images and Preduct Brand Dolich,I.J.
 10. Journal of Retailing v.58 no.2 Fashion Life, Self-Concept, Shopping Orientation, and Store Patrong: An Integrative Analysis Gutman,J.;Mills,M.K.
 11. Consumer Behavior: Implications for Marketing Strategy(4th ed) v.641 Hawkings,D.L.;Best,P.J;Coney,K.A
 12. The Psychology of Fashion v.10 Mapping the Market for Fashion: Complementarily in Consumer Preference Holbrook,M.B.;Dixon,G.;Solomon,M.R.(ed.)
 13. The Second Skin: An Interdisciplinary Study of Clothing (3rd ed.) Horn,M.J.;Guel,L.M.
 14. Unpulished Doctoral Dissertation University of Arkansas A Multivariate Examination of a Patronage Model: The Impact of Values and Life Styles on Shopping Orientations Howell,R.D.
 15. Advances in Consumer Research v.17 Some Implications for Consumer Self-Concept and Product Symbollism Research Lee,D.H.
 16. Advances in Consumer Reseach v.7 A Sociological Approach to Brand Choice: The Concept of Situational Self Image Schenk,C.T.;Holman,R.H.
 17. Journal of Market Research v.15 no.8 Some Practical considerations in Market Segmentation Shirley,Y.;Leland;Barbara,F.
 18. Clothing and Textiels Research Journal v.1 Proximity of Clothing to Self: Evolution of a Concept Sontag,M.S.;Schlater,J.D.
 19. Fashion: Consumer behavior toward Dress Sproles,G.B.


Six standards for testing the quality of antifreeze bucket mould
2019-12-25
Injection bucket for the plastic bucket are mostly used for the storage and transportation of various liquids. They have good characteristics for special dangerous goods packaging. They are not brittle, non-rusty, lightweight, and have good oil and strong corrosion resistance. Packing of dangerous goods with thermal insulation, moisture resistance, pressure resistance and corrosion resistance. Its materials are mostly made of polyethylene, polypropylene, polyester and other plastics by blow molding, injection molding, blistering, and rotomolding. They are mostly used to hold liquid and solid items in the chemical, pesticide, pharmaceutical, food, hardware, electronics, and mechanical and electrical industries. Do you know the standards for testing antifreeze buckets mould?
Antifreeze bucket mould
1. High temperature resistance test The
plastic bucket will be put into a room for 3 days. The temperature of the room was maintained at 90-95 degrees Celsius. After cooling, the surface of the plastic bucket should not be damaged, blistering or deformed. The moisture absorption of the raw materials is less than 0.01 to ensure that the box structure does not become brittle or deformed.
2. Lifting and dumping test
Place it in the calibration environment for more than 12 hours, add a load of 120 kg, and continuously lift, dump, and lower it for more than 2000 times without cracks. And the static and static plastic buckets are tested on the inclined surface with an inclination angle of 100. The plastic buckets do not fall.
3, UV protection and hardness test
From the perspective of engineering plastics, the UV protection component in the raw material has a great correlation with the hardness of the plastic mold. In addition, the UV intensity is different in every corner of the world. And in the same place, different colors respond to ultraviolet light differently.
4. Wall thickness of the mold
From the perspective of engineering plastics, the wall thickness of the mold is not the main reason for the toughness of the mold. The raw materials used, UV-resistant ingredients, molds, and injection molding equipment are all related. For most customers, the quality of a plastic bucket is not the wall thickness but whether the plastic bucket can pass different test conditions. design.
5. Anti-corrosion test
When testing the anti -corrosion performance of the plastic mold, put the mold in corrosive chemicals, and then keep the temperature of the corrosive chemicals at 75 degrees Celsius and immerse for 48 hours. The mold should not have any Cracking, blistering or deformation occurs
6. Resistance to cold and heat
Working temperature: -30 ℃ ～ 50 ℃. Destructive test: -30 ° C to 110 ° C (softening temperature). Detailed description: The plastic bucket will be refrigerated at -18 ° C for 12 hours. Then, a 65mm diameter iron rod with a weight of 5kg will be used to hit the injection point of the plastic trash can 3 times from a height of 1m. After the low temperature test, the mold should not crack or deform.
Related Products
Hot tags: china mold maker,taizhou,huangyan, suppliers, manufacturers, factory, maker,customized


text:
Page 1 of 4
Please PAUSE the "How to Draw a Kangaroo" video after each step to draw at your own pace.
For the first few steps, don't press down too hard with your pencil. Use light, smooth strokes to begin.
Step 1: Draw an oval as a guide for the lower part of the kangaroo's body. It doesn't have to be a perfect shape. It's just a guide.
Step 2: Draw a small circle on the upper right side as a guide for the upper part of the kangaroo's body. The circle should be around half the size of the original oval, and their outer edges should meet.
Step 3: Draw an even smaller circle on the upper right side of that. Pay attention to the positions of the circles and their different sizes.
Step 4: Draw a small arc on the right side of the head as a guide for the kangaroo's muzzle.
Step 5: Draw a longer, thinner arc on top of the head as a guide for the kangaroo's ears.

source: openbmb/Ultra-FineWeb


text:
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should be able to convince yourself that the number of inversions is equal to the length of the reduced word for g - because each swap that we perform during bubblesort corrects exactly one inversion.

Okay, so this is all very nice, but what use is it? Well, of course, maths doesn't have to be useful, any more than any other aesthetic pursuit. However, as it happens, in this case it is.

In statistics, the <a href="_URL_ tau test gives an indicator of the correlation between two measured quantities (for example, the height and weight of the test subjects). Suppose that we are given a list of pairs (eg (height,weight) pairs), and we want to know how strongly correlated the first and second quantities are.

Ok, so what we do is, we rank the first quantities from lowest to highest, and replace each quantity by its rank (a number from 1 to n). We do the same for the second quantities. So we end up with a list of pairs of numbers from 1 to n. Now, we sort the list on the first element, and then count the number of inversions in the second element.

For example, suppose our original list was [(1.55m, 60kg), (1.8m, 80kg), (1.5m, 70kg), (1.6m, 72kg)]. Converting to ranks, we get [(2nd,1st),(4th,4th),(1st,2nd),(3rd,3rd)]. Sorting on fst, we get [(1,2),(2,1),(3,3),(4,4)]. Looking at snd, we see that we have just one inversion. The idea is that the fewer inversions we have, the better correlated the two quantities. (Of course in reality there's a bit more to it than that - to convert the number of inversions into a probability, we need to know the distribution of word lengths for Sn, where n is the number of pairs of test data that we have.)

So you can think of the Kendall tau test as saying: What permutation has been applied in moving from the first quantities (the heights) to the second quantities (the weights)? How far is that permutation from the identity (on the Cayley graph)? What proportion of all permutations (in Sn) lie at that distance or less from the identity? (Even more concretely, we can imagine colouring in successive shells of the Cayley graph, working out from the identity, until we hit the given permutation, and then asking what proportion of the "surface" of the graph has been coloured.)_URL_ (DavidA)0tag:blogger.com,1999:blog-5195188167565410449.post-556064135994311522Mon, 20 Sep 2010 20:06:00 +00002010-09-20T21:06:22.353+01:00Cayley graphs of groups[New version HaskellForMaths 0.2.2 released
Recently, we've been looking at group presentations, where a group is presented as a set of generators together with a set of relations that hold between those generators. Group elements are then represented as words in the generators.

One can then ask questions about these words, such as: What is the longest (reduced) word in the group? How many (reduced) words are there of each length?

This week I want to look at Cayley graphs, which are a way of visualising groups. Questions about word length translate to questions about path distance in the Cayley graph.

So, the Cayley graph of a group, relative to a generating set gs, is the graph
- with a vertex for each element of the group
- with an edge from x to y just whenever x*g = y for some generator g in gs

Notice that as we have defined it, the edges are directed (from x to y), so this is a directed graph, or digraph.

Here's the Haskell code:

module Math.Algebra.Group.CayleyGraph where

import Math.Algebra.Group.PermutationGroup as P
import Math.Algebra.Group.StringRewriting as SR
import Math.Combinatorics.Graph

import qualified Data.List as L
import qualified Data.Set as S

data Digraph a = DG [a] [(a,a)] deriving (Eq,Ord,Show)

-- Cayley digraph given a group presentation of generators and relations
cayleyDigraphS (gs,rs) = DG vs es where
    rs' = knuthBendix rs
    vs = L.sort $ nfs (gs,rs') -- reduced words
    es = [(v,v') | v <- vs, v' <- nbrs v ]
    nbrs v = L.sort [rewrite rs' (v ++ [g]) | g <- gs]

-- Cayley digraph given group generators as permutations
cayleyDigraphP gs = DG vs es where
    vs = P.elts gs
    es = [(v,v') | v <- vs, v' <- nbrs v ]
    nbrs v = L.sort [v * g | g <- gs]

As an example, let's look at the Cayley digraph of the dihedral group D8 (the symmetries of a square), generated by a rotation and a reflection:

> :load Math.Algebra.Group.CayleyGraph
> let a = p [[1,2,3,4]]
> let b = p [[1,2],[3,4]]
> a^3*b == b*a
True
> cayleyDigraphS (['a','b'],[("aaaa",""),("bb",""),("aaab","ba")])
DG ["","a","aa","aaa","aab","ab","b","ba"] [("","a"),("","b"),("a","aa"),("a","ab"),("aa","aaa"),("aa","aab"),("aaa",""),("aaa","ba"),("aab","aa"),("aab","ab"),("ab","a"),("ab","b"),("b",""),("b","ba"),("ba","


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Inverness (Scottish Gaelic: Inbhir Nis) is the self-proclaimed capital of the Scottish Highlands. Inverness lies at the mouth of the River Ness.
In about 580 Craig Phadrig (on the western edge of Inverness) was the stronghold of the Pictish King Brude when St Columba embarked on his quest to convert the Picts to Christianity. It is said that King Brude denied St Columba entry when he arrived at Craig Phadrig: but the gates opened themselves when Columba knocked. Brude, suitably impressed, quickly converted with his people.
The red stone Inverness Castle you see today was built in the 1830s to house courts and administrative buildings. Its arrival was part of a boom in the 1800s that saw Inverness truly establish itself as the capital of the Highlands. The Caledonian Canal may never have been a huge commercial success, but it did add to the importance of the town and to its already thriving harbour. By the 1870s railways were in place linking Inverness to Perth, Aberdeen, Kyle of Lochalsh, Wick and Thurso. All of these still operate as Inverness enters the third millennium.


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Special Occasion Poems
Observance days instituted by the United Nations. Some special occasion days are held on national level also. International observance also known as International dedication or International Anniversary, denotes a period of time to observe some issue of international interest or concern. This is used to commemorate, promote and mobilize for action. Many of these periods have been established by the United Nations General Assembly, Economic and Social Council or by UNESCO. Prime occasions are - Women's Day, Water Day, Health Day, Earth Day, May Day or Labour Day, Mother's Day, No Tobacco Day, Enviroment Day, Fathers Day, Anti Drug Day, Teacher's Day, Literacy Day, Girl Child Day, Elders Day, Anti Poverty Day, Children's Day, Child Rights Day, Violence against Women, AIDS Day, Pollution Prevention & Human Rights Day.
My Dad's Hands
Bedtime came, we were settling down, I was holding one of my lads...
Special Occasion > Fathers Day
California > USA


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Read original article HERE
It's a bit of a misconception that the only factor to consider regarding textured hair is the amount of curl. When you're conducting an analysis and consultation, you must also consider aspects such as porosity, density, follicle shape and hair diameter in order to understand the best approach to cutting, styling and product recommendation. Here's a quick brush-up on curly hair characteristics.
1—It's all about follicle shape and growth angle.
Textured hair can be wavy, curly or coily and it's the follicle shape and angle of growth that determine the shape. In straight hair, the follicle is nearly round. In coily hair, it's a very flat elliptical. Straight hair grows parallel to the scalp while waves and curls grow on a diagonal or oblique angle. Tight curls grow perpendicular to the scalp.
2—The actual length can be deceiving.
Because curly hair grows horizontally, the actual length can be difficult to perceive. To gauge the true length, therefore, you must stretch or elongate the hair to account for "shrinkage."
3—It's a myth that curly hair grows slowly.
In fact, most curly hair grows at the same rate as straight hair—about half an inch per month on average. The reason the growth isn't as noticeable is because of hair shrinkage, or the fact that it grows out or at an angle rather than straight down.
4—Textured hair can be any thickness or diameter.
A single strand of any hair type can be coarse, medium or fine. Hair density measures the number of hair strands on one square inch of scalp and can be low, medium or high. A hair type might be anything from fine-but-dense to coarse-but-sparse. It's easy to assume that coily hair is also coarse and high-density hair, but that isn't always the case.
5—There are often more than one curl pattern and level of thickness and density on one head.
The pattern, thickness and density might vary on different areas of the head, such as the nape or scalp vs. the ends, or it could even change along the length of the same hair strand.
6—Porosity is a huge factor.
Porosity is the ability of the hair to absorb moisture. It's directly related to the condition of the cuticle, which can range from flat, smooth and resistant to raised and porous. If it's the latter, it usually means the hair is damaged, dry, fragile and/or brittle. The tighter the cuticle, the shinier the hair will appear. The tighter the curl, the less the cuticle is able to lie flat.


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Abyssopelagic Zone Essay
Satisfactory Essays
- Abyssopelagic Zone - The next layer is called the abyssopelagic zone, also known as the abyssal zone. It extends from 4,000 meters (13,124 feet) to 6,000 meters (19,686 feet). The water temperature is near freezing, and there is no light at all. • Hadalpelagic Zone - Beyond the abyssopelagic zone lies the forbidding hadalpelagic zone. This layer extends from 6,000 meters (19,686 feet) to the bottom of the deepest parts of the ocean. These areas are mostly found in deep water trenches and canyons. The deepest point in the ocean is located in the Mariana Trench off the coast of Japan at 35,797 feet (10,911 meters). The temperature of the water is just above freezing, and the pressure is an incredible eight tons per square inch. That is approximately
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Sheriff Walter B. Butchart
Walter B. Butchart, aged 21, was appointed to fill out the unexpired term of his father, William B. Butchart, also known as "Old W. W.", when the later died in his sleep Aug. 28, 1904. The following day, Walter pinned on the gold star and became the youngest sheriff on record in St. Louis County and one of the youngest in the nation.
Walter B. Butchart was educated in the Duluth Schools. At the outbreak of the Spanish-American War he enlisted with Company G, 14th Minnesota regiment. (Source: Minn. 920 W628 Who's Who In St. Louis County; Collier. 1932)
Byron Butchart is pictured with the badges worn by his family during their law enforcement history.


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I want to know difference between
varchar(255) in terms of memory usage and programming problems of using more memory.
The difference is going to be in how much data you are allowed to store there. The memory and disk space will depend on how much is actually stored, not what limits you put in place.
Most db's (MySQL included) store varchar fields with a length identifier and then a variable length data string. This means that the size of the field on disk goes up more or less linearly with the actual data stored. Similarly in memory, you aren't going to be allocating a large amount of memory for a small string unless it is padded (so varchar uses a lot less memory than char does regardless of underlying storage of the latter). In fact some db's like PostgreSQL store VARCHAR() and TEXT fields the same (and there is a 1GB compressed size limit there) and try to optimize storage based on actual requirements of the data being used.
In general these decisions should be made based on what your data retention and collection needs are, not based on the performance considerations. The performance can be tuned and that's the lovely thing about an RDBMS.
Since varchar takes disk space proportional to the size of the field, so the length of a field should be appropriate to the data that is being stored there, not least because there is a limit to the length of single record in each database e.g. SQL Server (it's ~8000 bytes).


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Protect your plant's root system from high or fluctuating temperatures with AutoPot WhitePots. The WhitePot reflects extremes of heat away from the root system. By shielding the roots in this way WhitePots help prevent the adverse effects of hot or varying temperatures on a plants growth management.
Growing in WhitePots is a simple and effective way to maintain constant temperatures for your roots allowing your plants to steadily thrive.
Reflects light and heat
Specially designed for use in hot environments
Can help reduce substrate temperatures by 5-10%


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This question is inspired by this one. In that thread, it's established that there are uncountably many cube-free infinite binary strings (where $x \in 2^{\omega}$ is cube-free iff $\forall \sigma \subset x,\ \sigma \sigma \sigma \not \subset x$). Here $\subset$ denotes "substring" which should be distinguished from "initial segment" which I'll denote by $\sqsubset$ if the need arises.
So let $C \subset 2^{\omega}$ be the subset of Cantor space consisting of all cube-free sequences. It's uncountable, and easily seen to be closed, hence it contains a perfect set.
Question 1. Is $C$ perfect?
Let's define:
$T_C = \{ \sigma \in 2^{<\omega} : (\exists x \in C)(\sigma \sqsubset x)\}$
$\ \ \ \ \ = \{ \sigma \in 2^{<\omega} : (\forall n > |\sigma|)( \exists \tau \in 2^n )(\sigma \sqsubset \tau,\ \tau$ cube-free$)\}$
$T_P = \{\sigma \in 2^{<\omega} : (\forall \tau \sqsupset \sigma, \tau \in T_C)(\exists \rho_1, \rho_2 \sqsupset \tau$ both in $T_C)(\rho_1 \perp \rho_2)\}$
Question 2. $T_C$ is evidently $\Pi ^0 _1$, but is it in fact recursive?
If we let $P$ denote the maximal perfect subset of $C$ obtained by iteratively removing isolated points of $C$ until this procedure stabilizes (taking intersections at limit stages), then $P$ determines a tree which I believe would be the tree $T_P$ defined above.
Question 3. What is the complexity of the tree determined by $P$?
If $T_P$ is indeed the tree determined by $P$, then the tree determined by $P$ is at worst $\Pi ^0 _3$, but can we do better?
UPDATE: The answers are:
 1. Yes
 2. Yes
 3. Since $C$ is perfect, $P = C$ and so by the answers to 1 and 2, the tree determined by $P$ is just the tree determined by $C$, which is recursive.
I've learnt this after discussing it with Robert Shelton, one of the authors of the paper Gjergji linked to in his response below. In fact, what I've gathered is that there's a function $f$, better than being on the order of $n^2$, such that to determine whether an arbitrary finite string $\sigma$ has a cube-free infinite extension, it suffices to check whether it has one of length $f(|\sigma|)$ (where $|\sigma|$ is the length of $\sigma$). I suppose this would mean furthermore that the tree $T_C$ is not merely recursive, i.e. $\Delta_1$, but in fact $\Delta_0$.
share|improve this question
This will also be a question in dynamics. One can also ask what is the entropy of C? – Nishant Chandgotia Apr 15 '11 at 7:09
I added the symbolic dynamics tag. – Gjergji Zaimi Apr 15 '11 at 7:26
1 Answer 1
up vote 12 down vote accepted
I found an article of J.D. Currie and R.O. Shelton that answers the first question. "The set of k-power free words over Σ is empty or perfect".
Added: Note that Currie has a number of papers on power free words, and many of them are on the arxiv.
share|improve this answer
Thanks. The article actually seems to answer all the questions I asked (possibly). Since $C$ is perfect, $T_C = T_P$ so questions 2 and 3 are equivalent. And Theorem 3.3 claims that we can effectively determine whether a finite binary string has an infinite cube-free extension. It's not clear whether this effective procedure is uniform however, and the proof of this theorem along with the definitions of some key terms appear to be in some other papers, so rather than chasing papers I emailed the authors and asked. I'll post an update if I get a response. – Amit Kumar Gupta Apr 15 '11 at 15:12
After a fruitful back-and-forth with Robert Shelton, I've understood that yes, the tree $T_C$ is recursive. – Amit Kumar Gupta Apr 19 '11 at 14:53
Your Answer


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Mayflies: Moqui minnow mayfly (Baetis moqui)
Profile prepared by Celeste Mazzacano, The Xerces Society for Invertebrate Conservation
Baetis moqui is a small minnow mayfly endemic to Utah. This species inhabits fast-flowing rocky substrates in cold, clear, high-gradient streams. B. moqui was described as a new species from larvae collected in south-central Utah in 2004, and has been collected from North Creek and Pine Creek in Garfield County in the Escalante Canyon region. Its limited range and requirement for clear fast streams with low sediment loads may affect long-term stability of this species. Global climate change could also threaten this species' habitat in the long-term. Research should focus on understanding the biology of this species and establishing the distribution and population size.
Canada – Species at Risk Act: N/A
Canada – provincial status: N/A
USA – Endangered Species Act: N/A
USA – state status: Utah SNR Not ranked
NatureServe: G1G3 Imperiled
IUCN Red List: N/A
Baetis moqui currently receives no federal protection. The Utah Sensitive Species List does not include insects.
Baetis moqui is in the family Baetidae (small minnow mayflies). The larvae are 5.8 – 7.0 mm (0.23 –0.28 in.) in length, with three caudal filaments at the tip of the abdomen. The body is brown, with well-developed wingpads and light and dark patterning on the thorax and abdomen. The antennae are long, extending to at least the first abdominal segment, and are paler at the base and tip compared to the mid-section. B. moqui can be distinguished from other North American Baetis species based characteristics of the abdominal gills, as gill 1 is extremely reduced or lacking, and the structure of the labial palpi of the mouthparts. Adults of this species have not been described.
Baetis moqui Wiersema, Nelson and Kuehnl 2005. The taxonomic status of this species is considered valid. The species epithet is taken from an early name for the indigenous Hopi people.
This species is only known from larvae, which have been collected from cold clear streams draining high elevation (3000 m/9842 feet) peaks dominated by spring snowmelt and summer monsoon rains. Larvae can be found on leaf packs and submerged vegetation at the stream edges, but are more common on fast flowing rocky substrates with a coarse sandy matrix. Larval feeding was not observed, but members of this genus are considered to be collector-gatherers and scrapers, feeding on diatoms and organic detritus.
Larvae are known only from North Creek and Pine Creek in Garfield county, south-central Utah. Their current range is considered to encompass less than 40 square miles (100 sq. km). Larvae were collected from the type locality in North Creek above North Creek Reservoir. Additional larvae were collected from Pine Creek at the Box Death Hollow trailhead. Larvae were commonly collected from elevations of 2100 – 2500 m (6890 –8202 feet) in North and Pine Creeks, but were not found above 2500 m (8202 ft.). Additional sampling at several adjacent streams did not reveal B. moqui, and no larvae were collected at the confluence of Pine Creek or North Creek with the Escalante River.
Baetis moqui is a rare endemic species with narrow habitat requirements that is known from only two streams in south-central Utah. Due to its restricted habitat, limited populations, and unknown dispersal ability, B. moqui should be considered at risk. Baetis moqui larvae appear to have a specific requirement for cold fast flowing waters with extremely low sediment loads. North and Pine Creeks are somewhat unique in that they have lower sedimentation loads than are expected for the region; adjacent nearby streams with overall higher sedimentation loads and turbidity were not shown to support any populations of this species. Both localities are within a few miles of Escalante, which is a very small town but close to to Bryce Canyon, Capitol Reef, and Canyonlands National Parks, and Glen Canyon National Recreation Area. Heavy recreational use and road traffic in the watershed may threaten this species, particularly given its apparent intolerance for sediment and turbidity. Populations may have limited dispersal due to restricted areas of appropriate habitat, as larvae were not found in streams that were adjacent but higher in sediment load. Such small isolated populations are also vulnerable to stochastic events, and normal population fluctuations due to disease, predation, and food supply. True population sizes are unknown as this is a newly described species and needs more survey work.
Global climate change could also pose a long-term threat to B. moqui. Assessment of climate change trends in North America has already revealed changes in precipitation patterns, stream hydrology, and plant bloom time. Overall, annual mean air temperature increased in North America from _PHONE_, and total annual flow has decreased in many streams in the central Rocky Mountain region throughout the past century at an average rate of 0.2% per year (Rood et al. 2005). The effects of global climate change are projected to include warming in the western mountains, causing snowpack and ice to melt earlier in the season (Field et al. 2007). This could lead to increased flooding early in the spring and drier summer conditions, particularly in arid western areas where snowmelt sustains stream flows. Spring and summer snow cover has already been documented as decreasing in the western United States, and drought has become more frequent and intense (Intergovernmental Panel on Climate Change 2007). Floods and droughts are projected to increase in frequency and intensity; erosion is also projected to increase due to decreased soil stability from higher temperatures and reduced soil moisture, and increases in winds and high intensity storms. As a species that requires cold clear streams, the survival of B. moqui could be threatened by habitat impairment due to global warming, including increased frequency and severity of seasonal flooding and droughts, reduced snowpack to sustain stream flow, increased erosion and siltation, and increasing air and water temperatures.
Necessary actions include monitoring known populations and searching for new ones, and protecting habitat in regions where the species is known to occur.
Little is known about the biology or distribution of this species. Additional surveys should be conducted to establish the range and distribution of this species and assess its dispersal capacity. Research into life history and habitat management in the area would be valuable.
Merritt, R. W., K. W. Cummins, and M. B. Berg (eds). 2008. An introduction to the aquatic insects of North America. 4th edition. Kendall/Hunt Publishing Company, Dubuque, Iowa.1158 pp.
Wiersema, N. A., Nelson, C. R. and Kuehnl, K. F. 2004. A new small minnow mayfly (Ephemeroptera: Baetidae) from Utah, U.S.A. Entomological News 115 (3): 139-145.
Nature Serve Explorer (Accessed March 2008)


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Australian operators of power systems are required to meet Australian Standards concerning touch, step and transfer potentials.
Earthing systems form an integral part of any power system and provide personnel safety, equipment protection and system operating requirements for protection schemes.
These standards include ENA EG1 and AS2067 which outline design and testing requirements. The 2010 version of AS2067 introduced the requirement to design and prove touch and step potentials to meet specific design criteria rather than simply ensuring that the grid impedance was below 1 ohm. Mining sites also need to meet the requirements of AS3007.2 for touch potentials and clearance times.
Why is it required?
New installations require injection testing to prove the Earth Grid design criteria has been meet. This injection testing results in touch potential measurements being taken and compared to the design criteria.
Periodic testing of Earthing Systems is also required as Earth Grid impedance can change due to corrosion of earth cables, changes in surrounding infrastructure, soil movement, excavation works and theft or vandalism. Periodic testing ensures the Earth System impedance has not changed from the commissioning stage thus ensuring the touch and step potentials are still within the design criteria.
How is it done?
Periodic testing on substation earthing systems is carried out to ensure compliance with the original design criteria or against the relevant standards when the design criteria is not available. This will ensure touch and step potentials remain at safe levels.
We offer comprehensive field testing and analysis using state of the art off frequency current injection methods and analysis technology. Our services include measurement of soil resistivity, electrode and earth grid resistance, calculation of touch and step potentials, all completed without interruption as tests can be performed whilst the substation is still energised.
Our technology provides accurate knowledge of the voltage gradients around the earthing system allowing highly accurate analysis of the step and touch voltages that require monitoring. This is achieved using off frequency current injection in the area surrounding the substation. Our engineers can assess the stability of the measured voltages at increasing distances to provide an accurate earth grid impedance measurement.
Ampcontrol conducts periodic Earth Grid testing which includes the provision of manuals and documentation to support analysis and findings. These reports can be also supplied to relevant government authorities to support auditing processes.
We provide Earth System testing services for mining and industrial applications during commissioning of new substations along with routine Earth System testing for pre-existing systems. High Voltage safety compliance audits against AS2067 and AS3007 can also be conducted at the same time as the Earth System testing to confirm compliance to standards as well as the touch and step tolerances.


Lingwo.ws tutorial, part 1: Creating a service
This is the first part in a four part series on Lingwo.ws. In this part, we will:
 - Install the reference implementation.
 - Create a simple example service.
 - Use "curl" to experiment using the service.
What is Lingwo.ws?
Lingwo.ws is an open specification for a way to design RESTful web services. I've described earlier why this is desirable, but to summarize:
 - Shared expectations: RESTful web services can be just about anything, so long as they follow a few design principles. So, when someone says a service is RESTful, you will still need to read its documentation and learn how specifically that service works. If a service conforms to Lingwo.ws, however, this means it conforms to a specific design.
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While humans have been writing for at least 5000 years, we have surprisingly little understanding of the physics underlying how ink moves from pen to paper. Now, physicists in South Korea and the US have worked out a theory – backed by experiment – that suggests the ink's flow rate depends on a tug-of-war that is played out between the capillary properties of pen and paper.
The team, led by Ho-Young Kim of Seoul National University, considered two scenarios: the blot and the line. With the pen stationary, the researchers identify four main factors that affect the flow of ink: the capillary pull of the pen; the capillary pull of the pores in the paper; the surface tension of the ink; and the viscosity of the ink. When it is moving, the speed of the pen is a fifth factor.
The team's theory defines a "minimal pen" as a simple capillary tube, not unlike the hollow reeds used by the Egyptians to make inscriptions on papyrus. The researchers approximate paper as an array of cylinders. Rough paper is modelled as narrow, closely packed pillars, while shorter, wider, more generously spaced pillars are used to approximate smoother paper. While paper is actually a much more complex matrix of cellulose fibres, the team argues that such arrays draw fluid through the same mechanisms that allow paper to draw ink from a pen.
Pulling power
The smaller cavities in paper have a greater capillary pull than the wider tube of the pen, but very small pores also restrict the flow of the ink. As long as the pores in the material are not wider than the opening in the minimal pen, rougher materials pull ink more quickly. This also explains why it is so difficult to write in pen on a piece of glass – without pores, the surface cannot draw ink. In contrast, wider pens have less capillary force, so they give up the ink more easily. As for the ink itself, higher surface tension allows it to wet the paper or pillar array more effectively, while higher viscosity slows it down. The team condensed these relationships, plus the time that the pen spends in contact with the paper, into scaling laws.
Kim's group confirmed the models by making the idealized pen and paper in the lab. The researchers etched silicon wafers into patterns of pillars 10–20 µm in diameter, height and spacing. Glass capillary tubes with diameters of 0.5–1 mm served as pens, filled with various concentrations of glycerine solution for mock ink. The team filmed the spread of ink blots and the drawing of lines, finding that the data matched their models.
After millennia of writing, you might think there would be nothing unexpected in these results, but Kim says that the shape of the ink in front of the moving pen was a surprise. "We showed that the actual shape is exactly parabolic – beautifully simple but nobody has predicted it," he explains. The reason for the parabola is that the pores in front of the moving pen draw the bulk of the ink, while the pores behind are already at full capacity.
Putting pen to paper
Testing their scaling laws with a real pen and paper, the researchers held a 0.1 mm-diameter nib against ordinary paper for 2 s. They predicted a blot radius of 3 mm, expecting a line width of 0.82 mm with the pen moving at 5 mm s–1. The actual line width was quite close, 0.7 mm, while the blot was not quite half the predicted size at 1.3 mm. The team explains the difference in terms of paper swelling. Unlike rigid silicon, cellulose fibres deform as they imbibe fluid, thereby increasing the size of the pores.
Laurent Courbin of the University of Rennes, France, describes the study as fun that strikes at the heart of physics. "The aim of a physicist is to identify interesting problems not yet understood and to make such problems understandable using the simplest possible theoretical models," he says. "When such investigations involve physical phenomena we experience in our everyday life, our work is even more rewarding!"
Although the team did not directly simulate the need for pocket protectors, Kim says that "ink stains on shirts from a pen in the pocket are very good examples of the ink blot that we treated". At last, the pragmatic have a rigorous proof for why the nerdy plastic lining is a good idea.
This research will be published in Physical Review Letters.


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Course Title: Work legally and ethically
Part B: Course Detail
Teaching Period: Term1 2020
Course Code: HWSS6068C
Course Title: Work legally and ethically
This course is co-delivered and co-assessed in a cluster with courses CHCCOM005 Communicate and work in health or community services, CHCDIV001 Work with diverse people, and HLTWHS002 Follow safe work practices for direct client care. This cluster is called, Introduction to the sector.
School: 375T Vocational Design and Social Context
Campus: City Campus
Program: C3402 - Certificate III in Individual Support (Ageing and Disability)
Course Contact: Steve Bruechert
Course Contact Phone: +61 3 9925 4063
Course Contact Email: _EMAIL_
Name and Contact Details of All Other Relevant Staff
Nominal Hours: 55
Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.
Pre-requisites and Co-requisites
In this course you will acquire the skills and knowledge required to identify and work within the legal and ethical frameworks that apply to an individual job role.
This course applies to community services and health workers who play a proactive role in identifying and meeting their legal and ethical responsibilities.
This course is delivered and assessed in a cluster with:
GEDU6078C - CHCCOM005 Communicate and work in health or community services
GEDU6077C - CHCDIV001 Work with diverse people
OHTH5920C - HLTWHS002 Follow safe work practices for direct client care
National Codes, Titles, Elements and Performance Criteria
National Element Code & Title:
CHCLEG001 Work legally and ethically
1. Identify and respond to legal requirements
2. Identify and meet ethical responsibilities
3. Contribute to workplace improvements
On successful completion of this course you will have developed and applied the skills and knowledge required to demonstrate competency in the above elements.
Details of Learning Activities
The program schedule includes:
- Online self-paced learning resources
- Face-to-face classroom-based learning including virtual and augmented reality
- Workplace based learning and assessment
- guest lecutres / presentation
While all course content in this sechdule wil be covered, the weekly order may change depending on class needs and availability of speakers and resources
Excursion day, Course familiarity day, Industry day
Understanding the job role• Understanding role of allied health, etc.• Introduction to NDIS framework
introduction to Greendale community and the online legislative component, Using communication to show respect and understand others
Safety – what is it and why is it important• Using lifting equipment, Managing personal stress and fatigue• Self-care
Dealing with conflict• Ethical dilemmas (linked to ethical care frameworks)• Legal breaches• Problem solving techniques• Understanding where workplaces can improve
Explanation of what behaviours of concern are and what happens in the workplace.
Supported work placement
Workplace practicalassessments• Assessment: Manual handling
Class Debriefing and catch up• Student reassessments
The University Library has extensive resources and provides subject specialist expertise, research advice, help with referencing and support through:
The learning Lab
The Study Support Hub
English for uni workshops
Overview of Assessment
This course is delivered and assessed with courses CHCCOM005 Communicate and work in health or community services, CHCDIV001 Work with diverse people, and HLTWHS002 Follow safe work practices for direct client care.
There will be three forms of assessment and they will include a research task; questions and answers in relation to the units of competency; and practical assessment either in a simulated or workplace environment.
The assessment tasks are as follows:
Task 1: Research questions/online quiz
Task 2: Questions and answers
Task 3: Observation in either a simulated or workplace environment/role plays and scenarios
If you have a long term medical condition and/or disability it may be possible to negotiate to vary aspects of the learning or assessment methods. You can contact the program coordinator or the Disability Liaison Unit if you would like to find out more.
A student charter _URL_ summarises your responsibilities as an RMIT student as well as those of your teacher
Your course assessment conforms to RMIT assessment principles, regulations, policies, procedures and instructions which are available for review online:_URL_
Students enrolled in Vocational Education and Training qualifications are assessed for Competency. To be assessed as Competent means you have consistently demonstrated the required knowledge and skills to a standard expected in the workplace. To be assessed as Competent in this course, you will need to complete each assessment task to a satisfactory standard. You will receive feedback from the teacher at the conclusion of each assessment task.
You should refer to the assessment brief which is available through Canvas for a full assessment criterion. Results that apply to courses that are delivered and assessed in accordance with competency-based assessments are:
CA - Competency Achieved
NYC - Not Yet Competent
DNS - Did not submit for assessment
Your assessment quizzes are broken up into multiple, smaller knowledge and scenario quizzes. You can view and attempt all the required assessment quizzes by selecting from the following table. Unless otherwise stated you will be given two attempts at each quiz; if you need additional attempts, your teacher(s) will discuss this with you.
The quiz assessment tasks allow you to demonstrate your knowledge of the cluster content. When you open the assessments from the links below, they will open in a new window. Close that window to return to this page.
|AT1 - WHS inspection and hazard identification|
|AT2 - Emergency incident role-play and report|
|AT3 - Manual handling|
|AT4 - Knowledge quiz|
|AT6 Ethics of care: Scenario quiz|
|AT7 - Working with diverse people: Scenario quiz|
Other assessment tasks
The following practical tasks are the other assessments required for this cluster. They may include a mixture of workplace documentation tasks, practical demonstrations and simulations of workplace tasks.
|Emergency incident role play and report|
|Ethics of care: Scenario quiz|
The assessment matrix demonstrates alignment of assessment tasks with the relevant unit of competency. These matrices are available through program administration
Course Overview: Access Course Overview


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01 Jul Homefront Heroines
Homefront Heroines looked at the lives and stories of the women of Oswestry during the First World War to ensure the extraordinary stories of local women are not lost forever, and the impact the war had on women's lives – which is still felt today, is recognised. Funded by Heritage Lottery Fund and led by project researcher, Sarah Gathercole the project uncovered real local stories, bringing them alive. It looked at what roles Oswestry women played on the home front and how they contributed to the war effort.
The project culminated in two mixed media exhibitions at Qube composed of the stories, photos and artefacts uncovered during the project research. Both had a launch event, inviting the local community to come and find out more about these hidden women from Oswestry's history. The research uncovered is also available to view online at _URL_, creating a resource for the wider community to access and learn more about their heritage. A booklet has also been produced for those without online access.
The project was generously supported by over 40 volunteers. As well as researching in local and national archives, libraries, museums and online resources, the volunteers have learned digital storytelling skills, using these to capture the memories of local residents with stories to share of family members who lived 100 years ago. Others have been knitting, sewing, re-creating uniforms, making cakes, reading and exploring women's poetry and discussing women's art, all in the context of the Great War.
The project has worked in partnership with many groups – including Oswestry and Borders U3A Art Appreciation Society and Crafty Knitters – and Sarah continues to give talks to groups who are interested in the stories of the local women.


Aug 032015
Montessori Lesson
Practical Life
3.5 to 5 years
2 glass vases.
Jug to fill vase.
Plastic work mat
Paper towel
Drying cloth
Secateurs or small pair of scissors.
Basket for collecting the flowers.
To pick flowers.
Fine motor skills
Developing concentration
To care for the environment
Strengthen muscles in the arms and sequencing
Reasoning skills.
 1. Invite the child to begin the Work Cycle.
 2. Take the basket and pair of scissors outside.
 3. Show the child how to choose a suitable flower.
 4. Hold the plant just below the flower with your left hand and with your right hand show the child how to trace down the stem of the flower.
 5. Move your left hand down to meet your right hand and exchange hands.
 6. Pick the scissors up in your right hand and snip the plant just below the position of your hand.
 7. Place this into the basket and return indoors.
 1. Lay out the plastic mat on the table and place the vase on it.
 2. Ask the child to fetch some water in the jug indicating the water mark.
 3. Show the child how to pour the water into the vase leaving a little space in the top for displacement once the flowers are added.
 4. Use the drip cloth to catch any water droplets on the jug.
 5. Pick the flower up in your right hand and hold it against the side of the vase.
 6. Show the child how to measure the flower for size and to trim the flower should it be too long.
 7. Show him how to place the cut stems into the paper towel, which will later be discarded.
 8. Run your hand down the stem of the flower taking off any excess foliage.
 9. Add this into the paper towel.
 10. Place the flower into the vase and admire it.
 11. Place the vase on a table where there will be no danger of the plant being knocked over.
 12. Return all the materials to the tray.
 13. Show the child how to fold the paper towel so that the foliage does not fall out, and show him how to dispose of it.
 14. Fetch a clean square of paper towel. Fold it twice, and place it on the tray together with the other materials.
 15. Invite the child to have a turn.
If the child has poured too much water into the vase, the water will spill when he carries the vase.
If the child has cut the flower too short, it will not touch the water once it is placed into the vase.
Show the child how to collect and cut vegetables from the garden.Show the child how to trim flowers or bushes, of their dead leaves.
Cutting different types of flowers including wearing gloves for rose bush cutting.
 One Response to "Montessori Cutting Flowers Lesson Activity"
 1. verry good covered all the activities
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Showing Collections: 1 - 1 of 1
Scope and Contents
The body of the letter is probably in the hand of a secretary, although the signature itself is thought to be that of Adam Ferguson. The letter dated 16 November 1815, St. Andrews, was written only 3-months or so before his death. The letter is to 'Dear Sir' and bears the address, James Chalmer Esq.r. / Abingdon Street / Westminster / London The letter refers to how on 'the other leaf of this paper' there is 'the original of a letter' which will explain itself. 'How a claim of mine...
- Names: Ferguson, Adam, _PHONE_ (historian, philosopher)
- Subject: Philosophers


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There is no universally accepted definition of a hot spring. For example, one can find the words "hot springs" defined as:
* any geothermal spring
* a spring with water temperatures above its surroundings
* a natural spring with water temperature above body temperature – normally between 36.5 °C (97.7 °F) and 37.5 °C (99.5 °F)
* a natural spring with warm water above body temperature
* a thermal spring with water warmer than 36.7 °C (98.1 °F)
* a natural spring of water greater than 21.1 °C (70.0 °F) (synonymous with thermal spring)
* a natural discharge of groundwater with elevated temperatures
* a type of thermal spring in which hot water is brought to the surface. The water temperature of a hot spring is usually 6.5 °C (11.7 °F) or more above mean air temperature. Note that by this definition, "thermal spring" is not synonymous with the term "hot spring".
* a spring whose hot water is brought to the surface (synonymous with a thermal spring). The water temperature of the spring is usually 8.3 °C (14.9 °F) or more above the mean air temperature.
* a spring with water above the core human body temperature – 36.7 °C (98.1 °F).
* a spring with water above average ambient ground temperature, a definition favored by some.
* a spring with water temperatures above 50 °C (122 °F)
(The above definitions of hot springs were copied from wikipedia.)
If you find a spring that you believe meets at least one of the criteria above, this is the place to waymark it!


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Household income found to be related to preschool attendance in China
Early childhood education has been seen by many as a tool to break the cycle of poverty for developing countries. Yet, despite the more than 82 million children under age 5 living in China today, little is known about the factors contributing to preschool attendance there, particularly in rural areas. This omission is even more salient given that more than 70 percent of mothers in the 25–34 age range with children under the age of 6 in China work outside the home, and household income has consistently been shown to affect child care choices in both developed and developing countries.
In a new paper, scholars from New York University's Silver School of Social Work and Columbia University's Teachers College fill this knowledge gap by rigorously examining the association between household income and preschool attendance among 3- to 6-year-old children in both rural and urban areas. Using six waves of the China Health and Nutrition Survey from 1991 to 2006 (N = 2,424), they found that rural areas consistently lagged far behind urban areas in both household income and preschool attendance among the 3 to 6 year olds. Preschool attendance in 2006 was 21 percent for the rural children and 46 percent for the urban children. Despite this gap, the association between household income and preschool attendance in rural areas is similar to that in urban areas.
The authors – Xin Gong and Di Xu of Columbia's Teachers College and Wen-Jui Han of NYU's Silver School – found a robust positive association between household income and preschool attendance in both rural and urban settings. A 10 percent boost in household income will bring close to a 1 percentage point increase in preschool attendance, which is equivalent to having approximately 1 million more 3- to 6-year-old children in China attend preschools. In our data, preschool in rural areas in 2006 cost about 480–1,200 yuan per year (≈US $80-200)—as much as 30 percent or more of a rural household's income (the average annual income per capita in our rural sample was 3,894 yuan). The income figure for our urban sample was higher (5,751 yuan), but the burden was similar (up to 37 percent) given that urban preschools often have higher fees (840–2,100 yuan per year).
The paper, newly published in the journal Child Development, is entitled "Household Income and Preschool Attendance in China."
The main challenge in estimating the association between income and preschool attendance is that a wide array of factors, such as mother's working status and parental preferences for child care, could be correlated with both household income and preschool attendance, and that could bias the association. To address this challenge, we used two statistical approaches: a probit model with rich controls and a household fixed-effects model. A household fixed-effects model removes bias associated with variables that are constant over time within a household.
This is the first study to employ rigorous methodology to examine the association between household income and preschool attendance with a Chinese sample. Our results show that millions of families in China face substantial financial constraints in their children's preschool attendance, particularly in rural areas. Taken together, our findings call for government investment to address this challenge. Our results also highlight the need for future research that evaluates the impacts of subsidies or income support programs for preschool attendance in China.


Create, add conditions and optimize a transatlantic route – Part 1
The TIMEZERO software program provides all the resources for preparing and organizing your trips out to sea exactly as you like. The advanced features multiply the possibilities, all while providing more safety.
The Weather Routing module is an optional feature. The most direct route isn't necessarily the best route and that is why a feature such as the Weather Routing module is so interesting.
There are numerous factors that should be considered during the creation of a route, notably if you are planning a long trip that takes multiple days. While there is not a perfect way to create a route, there are a few tips that we will present in this article.
Context : Diego de Miguel, TIMEZERO Ambassador and head of the Sailing living lab project
The Sailing Living Lab is an innovative project and quite unique. The Acrobat is a real laboratory of the seas open to companies and institutions interested in new maritime technologies. The boat is capable of sailing in the most difficult and farthest flung zones of the planet. On-board, the captain Diego de Miguel, creator of the project and a sailor since he was 7 years old! The team is made up of engineers, reporters and scientists that together carry out tests, studies, research and discoveries.
After two years of navigating at sea in the Mediterranean, the project is taking another direction as a transatlantic crossing looms. Starting from the Canary Islands, they must travel to the Caribbean before travelling up the East Coast of the USA, carrying out studies.
To carry out the transatlantic voyage, our TIMEZERO Ambassador Diego de Miguel presents us with his strategy for such a trip. He depicts with precision, the features of the Weather Routing module available for TZ Navigator v3.
From downloading weather data to the creation of a route, discover the different steps for preparing a transatlantic voyage safely and efficiently with TIMEZERO, under the guidance from an experienced professional.
Step 1 : Create a route between the Canaries and Cape Verde
To create a route with TZ Navigator, you have to start by downloading the weather forecast data from the "Update" workspace. The first step is that you have to select the type of weather data that you want to get. In our case, we chose wind, waves and currents. For the number of days, we selected a duration of 7 days. Knowing that on average, you will need 5 days to cross the Atlantic. With an internet connection, the software extracts the files and integrates them automatically.
From there, we go to the "Planning" workspace to create the route. It's from the workspace that we can see the weather data displayed as a layer over the chart and we can see the evolution over time by using the time bar on the bottom of the screen.
The tool bar is located on the left side of the screen. You just need to select the tool "Launch Routing" to create the Weather Routing module feature with a departure point (the Canaries) and an arrival point (Cape Verde).
The software calculates the best itinerary based on the meteorological weather data that you downloaded and the unique features of your boats sail performance (polars). The boat polars should be pre-entered from the "Polars" workspace.
With TIMEZERO, you can access simply and directly the polar files in order to adjust them based on the state of the sea, the wind speed, and the different sails. The polars of your boat are provided by the boat manufacturer but TIMEZERO has a library of 150 different types of polars to choose from as well. You can then adjust the polar percentages in the software program to get the data as precise as possible which can change in function with unique factors that effect every boat (age, weight, modifications, etc.)
Watch the video which demonstrates using the Weather Routing module to sail from the Canary Islands to Cape Verde:
Step 2 : Create a route between the Canary Islands and the Caribbean using the Weather Routing module
In this simulation exercise, the Weather Routing we created was from the Canary Islands to the Caribbean. A crossing that takes multiple days, around 2 weeks give or take. The TIMEZERO software offers the ability to download up to 16 days of weather forecasts. To ensure that the route is reliable, the weather data has to be reliable. For the sake of simplicity, we are going to make the assumption that the weather data is reliable to the full extent of its duration. After all, this exercise is primarily about seeing the power of the algorithm within TIMEZERO.
Once the weather data has been downloaded from the "Update" workspace, we can draw a route between the Canary Islands and the Antilles. The software calculates and draws the optimal route. This time, the presented route is not what you might personally view as the correct way to go and this is because the software program might indicate that a heading to the west while you would personally have the notion to want to head south. The route will most likely have a zig-zag pattern. This is so as not to have the wind directly behind the boat otherwise it is too slow. You always need to angle against the wind.
Watch the video which demonstrates using the Weather Routing module to sail from the Canary Islands to the Caribbean:
In part 2, discover how to set conditions to the route you created. Furthermore, our TIMEZERO ambassador Diego de Miguel unveils how to optimize the download of your meteorological data, notably for a multiple day crossing on a budget.
If you want to find out more about the Weather Routing module available for TZ Navigator, go to our website:


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Are you thinking about adding a ZZ plant to your collection of houseplants, but wondering if they need a lot of light? Well then, I'm here to give you all the information you need to know about these tough little plants and their light requirements.
Because of their adaptability to low-light conditions, ZZ plants are frequently found in homes and workplaces.
Light Needs of Zz Plants? Need a Lot?
Now, let's get down to the nitty-gritty of light requirements for a ZZ plant. These plants are considered to be low light plants, which means they can survive in settings with minimal sunlight. In fact, they can even thrive in conditions where other plants would struggle to survive.
This doesn't mean that ZZ plants don't need any light at all. In fact, they do need some light to survive, but they don't need a lot. You know what I am saying right?
As a general rule, you should place your Zz plant in a spot where it will receive indirect sunlight. This means that the plant should be out of direct sunlight, but still in a spot where it will receive some natural light.
It's also worth noting that while Zz plants can tolerate low light conditions, they will benefit from more light. If you want your Zz plant to grow quickly and have a lush, full appearance, you should place it in a spot where it will receive more light.
How To Tell If Your Zz Plant Is Getting Enough Light?
It's not always easy to tell if your ZZ plant is getting enough light, but there are a few signs to look out for. If your ZZ plant is looking pale or yellow, it could be a sign that it's not getting enough light.
On the other hand, if the leaves are turning brown or crispy, it's a sign that the plant is getting too much light.
Another way to tell if your Zz plant is getting enough light is to pay attention to its growth. If your plant is growing slowly or not at all, it could be a sign that it's not getting enough light.
Lighting Recommendations for Zz Plant!
Here's a handy table to give you an idea of how much light your Zz plant needs at different stages of its growth:
|Stage of Growth
|Bright indirect light
|Bright indirect light
Zz plants can tolerate a wide range of light levels, but they will grow best in bright indirect light.
Zz plants are known for their tolerance to low light conditions, so don't stress too much about providing them with the perfect amount of light. And remember, if you're unsure if your Zz plant is getting enough light, just take a look at the leaves and pay attention to the growth rate.
I have 2 Zz plants at my home for the last 3 years and they are growing pretty nicely with indirect sunlight!


Launch of Website on Federally Funded Language Programs
Washingtion, DC (STL.News) The US Department Of State released the following statement:
The United States is ramping-up study in Mandarin, Russian, Arabic, Farsi, Hindi and more than 100 other languages. This effort will help the U.S. meet national security challenges, make our diplomacy more effective, and ensure our economic prosperity by helping Americans improve their critical language skills. To make it easier to navigate the many opportunities available, the U.S. Department of State has launched a new website: Languages.State.Gov.
With this new online resource, the Trump Administration is further developing a new generation of critical language speakers. The website provides a resource for Americans seeking to learn a foreign language by serving as a one-stop platform for U.S. government language programs. Americans can visit Languages.State.Gov to take a quiz to identify language programs that fit their goals and explore U.S. government scholarships and other resources. The website will categorize the language programs offered by the U.S. government by several criteria, including course length, location, and audience.
Enhancing the ability of Americans to study critical languages helps the United States meet national security goals. It also helps ensure our economic prosperity by equipping Americans with the linguistic and cultural skills they need to compete in the global economy.
Interested members of the American public are encouraged to take the first step towards learning a new language by visiting Languages.State.Gov. Follow _USER_ and _USER_ on Twitter for additional language and study abroad content.
Source link


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Use of a popular power electronics platform in a control systems laboratory
Electrical and Computer Engineering
ASEE Annual Conference and Exposition, Conference Proceedings
Date of Presentation
The "power-pole board", developed at the University of Minnesota (UMN), and commercialized by Hirel Systems, is widely used in U.S. universities for power electronics laboratory experiments. The board can be configured as a buck-converter, boost converter, buck-boost converter, flyback converter, or forward converter. A lab manual developed at UMN for use with the power-pole board is available in the public domain. The manual also includes experiments on closed-loop control of the buck converter; closed loop control allows the output voltage of the converter to be regulated and remain immune to variations in the input voltage or converter load. Design of the controller in the UMN lab manual is based on the the K-factor approach (a frequency domain technique that involves a number of derivations and calculations pertaining to achievement of a desired phase margin). University of the Pacific was a member of an 82 university consortium (led by the University of Minnesota) that was supported by a Department of Energy grant to "revitalize electric power engineering education by state-of-the-art laboratories". This paper describes how the grant enabled University of the Pacific to implement a new power electronics course and lab using the power pole board and publicly available UMN developed materials. The paper also describes how the power pole board was used to support the laboratory experience in a control systems course without any additional expense for lab equipment. It describes how Proportional + Integral (PI) controllers can be designed for the power pole board buck converter. The design approach (using Matlab to design the controller) is simpler than the K-factor method, and provides instantaneous information on the transient response of the closed-loop system. The paper also shows how PI controllers can be implemented on the power pole board (this information is not available in the UMN lab manual, and could prove useful to the community of power pole board users). The power pole board (a relatively low cost investment of about $1250 per board) has enabled University of the Pacific to provide meaningful lab experience in power electronics and control systems. Student feedback on the lab experience in these two courses has been positive and is presented.
Mathews, C. P.
Use of a popular power electronics platform in a control systems laboratory.
Paper presented at ASEE Annual Conference and Exposition, Conference Proceedings.


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Nine years ago on September 8, 2005, the "new and improved" Memorial Hall on the UNC campus was celebrated with a grand re-opening weekend. On this special anniversary, Morton Collection volunteer, Jack Hilliard, takes a look back at this iconic building.
It became painfully clear during UNC's commencement weekend of 1883 that Gerrard Hall was too small for Carolina's growing family. Afterward, officials quickly drew plans for a new 4,000-seat building on a site just west of Gerrard to be named Memorial Hall in honor of David Lowry Swain, President of the University from 1835 until 1868, and North Carolina's Governor from 1832 until 1835. Soon after construction began, however, the university expanded the memorial honor to include UNC alumni who died in the Civil War as well as additional outstanding Carolina alumni and North Carolina citizens.
A lagging fund raising campaign and cost overruns plagued the project, but finally construction was completed and Memorial Hall was dedicated on June 3, 1885. A project that had an original estimated cost of $20,000 had a final cost about $45,000. (That's $1.074 million in today's dollars.) Despite a poor architectural design and major acoustical problems, the facility served the University until 1929. In 1896, after the campus gymnasium became a dining hall, Memorial Hall was used as a gymnasium and remained in that capacity until Bynum Gym was opened on May 29, 1905. By 1929, Memorial Hall had suffered major damage to its foundation. The building was declared unsafe and torn down.
On January 18, 1930 John Sprunt Hill, speaking for the University building committee, recommended "the erection of a modern fireproof building of greater dignity, to replace old Memorial Hall." The State Emergency Fund provided $150,000 to construct a new structure on the site of the old hall. The new Memorial Hall was completed in mid-summer 1931 at a final cost of $182,000 ($2.6 million in today's dollars). On University Day, October 12th, the new facility was dedicated and the building was presented to University trustee, John Sprunt Hill, by North Carolina Governor O. Max Gardner.
The first performance on stage in the new building was dancer Carola Goya. For almost 30 years, Memorial Hall served the University and Chapel Hill community well with entertainment, freshman orientations sessions, awards nights, baccalaureate exercises, commencement ceremonies, lectures, pep rallies, the North Carolina Symphony, and even a beauty pageant in 1966. The list of those appearing on stage reads like a who's who . . . Louis Armstrong, Dave Brubeck, Montovani, Marcel Marceau. On January 31, 1942, First Lady Eleanor Roosevelt visited campus as keynote speaker at a jointly-sponsored International Student Service-Carolina Political Union Conference on "Youth's Stake in War Aims and Peace Plans."
Over the years, Hal Holbrook with his "Evening with Mark Twain" made several appearances as did Flamenco guitarist Carlos Montoya. At the height of the folk music era Joan Baez, and Peter, Paul and Mary stopped by. In 1987 Charles Kuralt and Loonis McGlohon performed "North Carolina is My Home." A speakers list includes, Billy Graham, Terry Sanford, and Ted Kennedy. Walter Cronkite and Dan Rather have been featured at the Nelson Benton Memorial Lecture series sponsored by the School of Journalism and Mass Communications, and coaches Carl Snavely, Wallace Wade, and Dean Smith were featured as part of an ongoing series on sportsmanship. On May 13, 1989 as part of Graduation/Reunion Weekend, Hugh Morton presented a slide show from Carolina's Golden Age to a near-full house in the storied facility.
When UNC's Clef Hangers completed their annual spring concert on April 20, 2002 the doors to the 'Great Hall" were closed for a three-year major building transformation. A partnership between the State of North Carolina and hundreds of generous donors funded the $18 million project. The new Memorial Hall now has air conditioning, seven dressing rooms, new marble lobby floor, and a new stage that is twice the size of the original. The auditorium seating configuration is improved with wider aisles and better sight lines.
On September 8, 2005 a ribbon-cutting ceremony kicked off the Grand Reopening Gala that featured stars Tony Bennett, Itzhak Perlman, and Leonard Slatkin—plus our own North Carolina Symphony. Following the hall's renovation, Carolina Performing Arts has continued to offer world-class performances in music, dance and theater, and the caliber of performers picked up right where it had left off before closing with Bonnie Raitt, Yo-Yo Ma, Nanci Griffith, and Vince Gill. In 2005, National Public Radio's "Wait, Wait, Don't Tell Me!" originated a nation-wide broadcast from Memorial Hall, and in 2009 the world-renowned Bolshoi Ballet performed a first ever concert in the Southeast.
The future is just as bright for Memorial Hall. Performances this season include the Pittsburgh Symphony under the direction of Manfred Honeck, and Wynton Marsalis and the Lincoln Center Jazz Orchestra. And of course the Holidays would not be complete without the Carolina Ballet's performance of "The Nutcracker."


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Nasa humanoid 'starts work' in UK lab
A team of researchers at the Edinburgh Centre for robotics has started work with Nasa's latest and most advanced humanoid robot, Valkyrie.
The robot is designed with the ultimate goal of carrying out space exploration missions that are too dangerous for humans - including exploring the surface of Mars.
BBC science reporter Victoria Gill visited the lab to see the robot in action.
(International Space Station footage courtesy of Nasa)


To Keep Fit Take A Dog As Walking Companion
Dog walking was highest among the young and educated, with 18 to 24 year old owners twice as likely to walk the dog as those over 65, and college graduates more than twice as likely as those with less education.
Younger dogs were more likely to be walked than older dogs. While larger dogs (20 kgs. or more) were taken for longer walks than smaller dogs.
Researchers from Michigan State University said that among dog owners who took their pets for regular walks, 60 percent met United States government criteria for regular moderate or vigorous exercise. Nearly half of dog walkers exercised an average of 30 minutes a day at least five days a week.
The dog walkers had higher overall levels of both moderate and vigorous physical activity than the other subjects, and they were more likely to take part in other leisure time physical activities. On average, they exercised about 30 minutes a week more than people who didn't have dogs.
Several studies now show that dogs can be powerful motivators to let people moving and keep fit. Not only are dog owners more likely to take regular walks, but new research shows that dog walkers are more active overall than people who don't have dogs.
Human walkers often complained about the heat and talked each other out of exercise, but that people who were paired with dogs didn't make those excuses, according to Rebecca A. Johnson, director of the human-animal interaction research center at the University of Missouri College of Veterinary Medicine.
A study of 41,500 California residents found that dog owners were about 60 percent more likely to walk for leisure than people who owned a cat or no pet at all. That translated to an extra 19 minutes a week of walking compared with people without dogs.


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We have found the following solution for: Flies alone crossword clue. This crossword clue was last seen on September 16 2023 Wall Street Journal Crossword puzzle. The solution we have for Flies alone has a total of 5 letters. Please keep in mind that same crossword clues might have different answers and this is the reason why we give the number of letters for the following answer so that it matches the crossword clue you've got. If something is wrong or missing kindly let us know and we will be more than happy to help you out. For older puzzles and more answers we recommend you to visit our Wall Street Journal Crossword Answers page.
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There are a total of 417 clues in September 16 2023 crossword puzzle.
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3
The default.settings.php file contains the following comment:
For enhanced security, you may set this variable to the contents of a file outside your document root; you should also ensure that this file is not stored with backups of your database.
Example:
$settings['hash_salt'] = file_get_contents('/home/example/salt.txt');
Assuming the attacker was able to create a PHP file inside my Drupal installation, in which way does writing the hash salt in a file increases the security? In any case, the attacker would be able to read the value for $settings['hash_salt']. Eventually, the attacker could change the value for $settings['hash_salt'], but does doing this make any sense for the attackers to do?
1 Answer 1
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The main reason to do this is to prevent the salt from accidentally being committed to your content versioning system.
Most advanced hosting environments (both Drupal hosts and all-in-one Drupal stacks) provide ways to do this.
Similarly, it is useful to go through the trouble of abstracting DB settings and the like, both for security and to make it easier to move your code from one environment to the next.
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