What is the Raman effect?

What is the Raman effect?

In the first seven years after its discovery, the Raman Effect was the subject of more than 700 papers in the scientific literature, mostly by physicists who were using the technique to study the vibration and rotation of molecules and relating those phenomena to the molecular structure.

What is the effect of Raman scattering on Stokes photons?

The more Stokes photons that are already present, the faster more of them are added. Effectively, this amplifies the Stokes light in the presence of the pump light, which is exploited in Raman amplifiers and Raman lasers . Stimulated Raman scattering is a nonlinear optical effect.

What is the phase-shift of the Raman scattered beam?

Thus, a phase-shift Θ = 2πx(1/λ − 1/λ’) appears. For Θ = π, the scattered amplitudes are opposite, so that the Raman scattered beam remains weak. A crossing of the beams may limit the path x. Several tricks may be used to get a larger amplitude:

What is the best book on the Raman effect?

The Raman Effect 25 Smekal, A. (1923). Naturwissenschaften 11, 873. Sonnich Mortensen, O. and Massing, S. (1980). In: R. J. C. Clark and R. E. Hester (eds), Advances in Infrared Raman Spectroscopy. Heyden, London, vol. 6. Stoicheff, B. (1963).

The Raman effect is named after Indian scientist C. V. Raman, who discovered it in 1928 with assistance from his student K. S. Krishnan. Raman was awarded the 1930 Nobel Prize in Physics for his discovery of Raman scattering. The effect had been predicted theoretically by Adolf Smekal in 1923.

How to increase the amplitude of a Raman scattered beam?

For Θ = π, the scattered amplitudes are opposite, so that the Raman scattered beam remains weak. A crossing of the beams may limit the path x. Several tricks may be used to get a larger amplitude: In an optically anisotropic crystal, a light ray may have two modes of propagation with different polarizations and different indices of refraction.

What is a normal mode in Raman?

In general, a normal mode is Raman active if it transforms with the same symmetry of the quadratic forms , which can be verified from the character table of the molecule’s point group. As with IR spectroscopy, only fundamental excitations (

What is Raman resonance in optically anisotropic crystal?

In an optically anisotropic crystal, a light ray may have two modes of propagation with different polarizations and different indices of refraction. If energy may be transferred between these modes by a quadrupolar (Raman) resonance, phases remain coherent along the whole path, transfer of energy may be large.

Is Naltrexone a pill?

Is Naltrexone a pill?

Naltrexone can be prescribed and administered by any practitioner licensed to prescribe medications, and is available in a pill form for Alcohol Use disorder or as an extended-release intramuscular injectable for Alcohol and Opioid Use disorder.

What are the substance of abuse?

Substance abuse, as a recognized medical brain disorder, refers to the abuse of illegal substances, such as marijuana, heroin, cocaine, or methamphetamine. Or it may be the abuse of legal substances, such as alcohol, nicotine, or prescription medicines. Alcohol is the most common legal drug of abuse.

Is naltrexone considered a narcotic?

Is Naltrexone a Narcotic? Although naltrexone binds to opioid receptors in the brain, it does not activate them like buprenorphine and methadone. Hence they are not considered a narcotic medication.

How does naltrexone make you feel?

Naltrexone blocks the parts of your brain that “feel” pleasure from alcohol and narcotics. When these areas of the brain are blocked, you feel less need to drink alcohol, and you can stop drinking more easily.

What is methadone mile?

Mass and Cass, also known as Methadone Mile or Recovery Road, is a tent city located at and around the intersection of Melnea Cass Boulevard and Massachusetts Avenue in Boston, Massachusetts. It has been characterized as “the epicenter of the region’s opioid addiction crisis.”

Is Suboxone the same as methadone?

Do methadone and Suboxone have the same ingredients? No, they are different medications with different ingredients. Methadone only has one ingredient, methadone hydrochloride. Suboxone is a combination of two medications, buprenorphine and naloxone.

What are the 6 types of substance abuse disorders?

Types of Substance Use Disorders

  • Opioid Use Disorder.
  • Marijuana Use Disorder.
  • Nicotine Use Disorder.
  • Stimulant Use Disorder.
  • Sedative Use Disorder.
  • Hallucinogen Use Disorder.
  • Alcohol Use Disorder.

What causes addiction in the brain?

When someone develops an addiction, the brain craves the reward of the substance. This is due to the intense stimulation of the brain’s reward system. In response, many users continue use of the substance; this can lead to a host of euphoric feelings and strange behavioral traits.

What are 5 types of drugs?

Here are the five main categories and some information about each:

  • Central nervous system depressants.
  • Central nervous system stimulants.
  • Opiates and Opiodes.
  • Hallucinogens.
  • Marijuana.

What are the 7 types of drugs?

7 Drug Categories

  • (1) Central Nervous System (CNS) Depressants. CNS depressants slow down the operations of the brain and the body.
  • (2) CNS Stimulants.
  • (3) Hallucinogens.
  • (4) Dissociative Anesthetics.
  • (5) Narcotic Analgesics.
  • (6) Inhalants.
  • (7) Cannabis.

How fast does the Arrma RC car go?

How fast does the Arrma RC car go?

Arrma Limitless First 100+ Mph Run and Review – YouTube.

What’s the difference between ARRMA and Traxxas?

Traxxas primarily makes beginner-friendly RC’s with a narrow focus on creating extreme RC’s. Arrma, on the other hand, primarily makes powerful basher RC vehicles, and they also limitedly create beginner-friendly RC vehicles.

Who is Traxxas competition?

Traxxas’s top competitors include Kumho Tire, SEAT, Sandhar Technologies and Saint-Gobain Sekurit. Traxxas is a manufacturer of radio-controlled cars, trucks, and speedboats.

Is the Arrma felony worth it?

The Arrma Felony is an amazing Rig. You can watch all the YouTube videos and reviews you want but they don’t do justice to just how spectacular this car is. Its insanely fast and the body design is great. If you don’t already have the spectrum smart batteries get them.

Where can I buy ARRMA infraction?

Amazon.com: arrma infraction.

What is the best RC company?

The Best RC Car Brands of 2020

  1. ARRMA. This brand is known for its durability and larger sizing of most remote control cars in its fleet.
  2. HB Racing. Full transparency, this brand may not be suitable for those of you looking to begin your remote control hobbies.
  3. Axial.
  4. HPI Racing.
  5. Mugen.
  6. Traxxas.
  7. Kyosho.
  8. Xray.

Why choose Arrma RC vehicles?

ARRMA All Road RC vehicles are Street Bashers that are built to blast through on-road, dirt and oval tracks. These remote control vehicles perform ideally as drag racers and drifters. BURN RUBBER with these speed machines. ARRMA RC Monster Trucks are the ultimate remote control bashing machines. They are built for extreme, all-terrain toughness.

What is an Arrma RC monster truck?

ARRMA RC Monster Trucks are the ultimate remote control bashing machines. They are built for extreme, all-terrain toughness. They feature a durable design with strong chassis and large wheels. ARRMA RC Stunt Trucks are designed to perform aerial backflips, wheelies, huge jumps and more with ease.

What is Arrma® action?

ARRMA® defines high-speed super-tough RC action. Designed from the ground-up by experts who understand the importance of strength, speed and value, ARRMA vehicles are ‘Designed to be Fast, Designed to be Tough’.

What are the best RC cars for speed bashing?

ARRMA RC offers Stadium Trucks and Truggies both built for high performance remote control Speed Bashing. Think Astonishing Speed and Durability paired with full-throttle freedom over rough terrain, slick surfaces and loose dirt.

https://www.youtube.com/user/ARRMARC

Does 2 step Make your car backfire?

Does 2 step Make your car backfire?

An aftermarket two step utilizes an ignition cut rather than a fuel cut, so fuel flow continues resulting in excess fuel in the system. When the ignition comes back on, backfire occurs in the system resulting in a loud pop with flames shooting out of the tailpipe (depending on the amount of excess fuel).

What is a 2 step in drag racing?

An aftermarket two-step rev limiter lets you set one (lower) limiter for launch, and a higher limit for when you’re upshifting as you accelerate away.

Why is it called 2 stepping?

The dance is often called the Texas Two Step or the Country Two Step, and those names came from the period when it started to separate from the Foxtrot. It was popular in the south, as is quite common with country music, so plenty of people in Texas were dancing along to it.

Does a 2-step hurt your engine?

Updated April 2022: A two-step is a secondary rev limiter that holds a certain RPM for optimum power delivery, which is now popularly known as launch control. Unless the setup is wired to increase pressure inside the exhaust manifold, two-step rev limiters are generally not bad for your engine.

Can you 2-step a stock car?

Additionally, the 2step is not really useful on a car that is slightly modified or stock. In most NA cars, you do not even need one unless you drag most of the time. Also, you should not try getting a 2step boost and launching your car with stock axles or clutch.

Can 2 Step damage engine?

Can 2-step damage engine?

How do you make a car backfire?

Keep your foot on the pedal for a little bit. For me, it works after about 30 seconds of keeping the car off with the pedal down. Fire up your car while you stomp your foot on the gas pedal until it goes all the way down and then ‘hold it there. ‘ Voila, you just backfired your car.

How do you run a successful employee competition?

You want to convince as many employees to participate as possible, so you will want to build buzz. You can achieve this end by advertising the competition weeks before, announcing prizes, sending reminders through staff memos and social media groups, and inviting employees to form teams and start brainstorming.

What are the different types of workplace competitions?

List of workplace competitions 1 Workplace Safety Bingo 2 Online Office Games (Hosted) 3 Virtual Team Trivia 4 Virtual Hackathon 5 Hotshot Snapshot 6 Costume Contest 7 Around the world in 80 workdays 8 Deck-a-desk 9 Tidy-up Treasure Hunt 10 Pantry Polls 11 Review Roulette More

What are the best workplace competitions for remote teams?

Virtual Team Trivia is one of the most entertaining workplace competitions you could hold with your remote teams. When you book, choose from a list of subjects like international or Rock n’ Roll, or opt for a customizable theme.

Do workplace competitions make employees more productive?

Yes, workplace competition, as in, a Hunger Games style survival of the fittest, can create an adrenaline-driven environment that exhausts employees. However, friendly workplace competitions can have the opposite effect.

Is Jodhpur National University fake or not?

Is Jodhpur National University fake or not?

Synopsis. The University has awarded 38,000 degrees and marksheets to students of which 25,003 were found fake, Education Minister KC Saraf said in the House.

Does fake degree work in India?

In India, there are many “degree mills” found to provide illegitimate academic degrees, diplomas or PhDs. India has not adopted plenary authority or strict laws to regulate schools and the quality of an institution’s degree and prohibit them from issuing fake degrees.

Is Jaipur National University UGC approved?

Within a few months, after its formation, the University got approvals and recognitions from all statutory national bodies, including the University Grants Commission (UGC), under the Clause 2(f) of the UGC Act of 1956. Jaipur National University is the first NAAC accredited self-financed University in the state.

Is it a crime to fake a diploma?

Most people assume that getting a fake diploma is illegal and that it may get them arrested. Yet, that simply isn’t true. Creating, purchasing, and owning a fake diploma is entirely legal.

Can I go to college with a fake diploma?

Fake diplomas never pass a background check. So the question begs: “Should you get a fake high school diploma”? The simple answer is: “NO!” Buying a fake high school diploma from a fake high school website will never help you get a job or get into college.

How many fake degrees given to Jodhpur National University students?

JAIPUR: Jodhpur National University awarded 25,003 fake degrees and marksheets to students since 2009 and a Special Operation Group of Rajasthan police was probing the case, Rajasthan government today informed the state Assembly.

Can Jodhpur National University be dissolved under Section 44?

On a number of supplementary questions raised by Madan Rathore, Jogaram Patel (both BJP members), the education minister informed that under section 44 of the Jodhpur National University Act, the institute could be dissolved by adopting all powers by the state government or an administrator could be appointed.

How many degrees were awarded to fake students in up University?

The University has awarded 38,000 degrees and marksheets to students of which 25,003 were found fake, Education Minister KC Saraf said in the House. The University has awarded 38,000 degrees and marksheets to students of which 25,003 were found fake, Education Minister KC Saraf said in the House.

How much does it cost to get education qualification certificate in India?

They employ contact persons/agents on commission basis to bring candidates/students who want educational qualification certificates or degrees for jobs, marriage and abroad visits. The cost of certificates/degrees was from Rs.5000/- to 1,20,000/-.

Who is the shortest female alive?

Who is the shortest female alive?

The shortest female living (non-mobile) is Wildine Aumoithe (USA) who measured 72 cm (28.3 in) in North Miami Beach, Florida, USA, on 13 October 2021.

Who is the shortest woman in the world 2020?

Jyoti Amge may have a tiny stature at just over two feet tall, but she certainly has a big presence and a personality to match.

Who is the shortest woman in the world 2021?

Wildine Aumoithe
A new record for the shortest female living (non-mobile) has been achieved by Wildine Aumoithe (USA). The 18-year-old from North Miami Beach, Florida, USA, is just 72 cm (28.3 in) tall, as confirmed on 13 October 2021.

Did Jyoti get the surgery?

The world’s smallest woman has travelled to the US to investigate treatment for painful fractures in her legs. Jyoti Amge has been living with the fractures for close to a decade and has trouble walking on the breaks.

Which country has the shortest women in the world?

– The Netherlands 72.36 inches – Montenegro 72.13 inches – Denmark 71.89 inches – Norway 71.81 inches – Serbia 71.65 inches – Germany 71.26 inches – Croatia 71.06 inches – The Czech Republic 70.97 inches – Slovenia 70.98 inches – Luxembourg 70.83 inches

What woman is the prettiest in the entire world?

The ‘most beautiful girl in the world’ has opened up about what it feels like when a person is given such a title. Yael Shelbia, an Israeli model and actress, was declared the most beautiful woman of the year in 2020 by TC Candler’s annual 100 Most Beautiful Faces of the Year list.

Who is in the world has the shortest full name?

Bo (from the French ‘Beau’ or the Scandinavian ‘Bo’)

  • Io (the only all vowel name I know,from the ancient Greek priestess)
  • Mo (not sure on the origins of this one,but Mo Farrah is a good example)
  • Who is the shortest living person in the world?

    China.

  • Spain. Spain is known as “The epitome of style and culture”.
  • Japan.
  • Russia. Russian women are often referred to as beauty queens.
  • France.
  • Italy. Italian women are also called Bella.
  • South Africa.
  • India. Indian women have the most beautiful hair in the world.
  • What does Erimin 5 contain?

    What does Erimin 5 contain?

    The active ingredients were identified as nimetazepam and diazepam with glucose, sorbitol, mannitol and lactose as diluents.

    What happens if you take too much nitrazepam?

    Taking these medicines with Nitrazepam tablets increases the risk of drowsiness, difficulties in breathing (respiratory depression), coma and may be life-threatening. Because of this, concomitant use should only be considered when other treatment options are not possible.

    What is nitrazepam 5 mg used for?

    Nitrazepam Tablets should be used for short term treatment of insomnia only when it is severe, disabling, or subjecting the individual to extreme distress, where daytime sedation is acceptable. Treatment should be as short as possible and should be started with the lowest effective dose.

    What is the strongest benzodiazepine made?

    Alprazolam is the only high-potency benzodiazepine developed in an XR formulation.

    How long does nimetazepam stay in your system?

    Nimetazepam

    Clinical data
    Metabolism Liver
    Elimination half-life 14–30 hours
    Excretion Kidney
    Identifiers

    What kind of drug is benzodiazepines?

    Benzodiazepines are depressants that produce sedation and hypnosis, relieve anxiety and muscle spasms, and reduce seizures.

    Who should not take nitrazepam?

    If organic brain changes are present, the dosage of nitrazepam should not exceed 5mg in these patients. In patients with chronic pulmonary insufficiency and in patients with chronic renal or hepatic disease, the dosage may need to be reduced. Nitrazepam tablets are contraindicated for use in children.

    How does nitrazepam make you feel?

    Nitrazepam works by affecting the way certain brain chemicals (neurotransmitters) transmit messages. This has a calming effect which helps you to sleep. It works well in the short term, with one week’s treatment normally being sufficient, although up to three weeks of treatment are sometimes required.

    Is nitrazepam a muscle relaxant?

    It is concluded that nitrazepam and diazepam produce central muscle relaxation by inhibiting polysynaptic pathways in the spinal cord. The potency of nitrazepam appears to be greater than that of diazepam.

    Which Benzo is best for sleep?

    Benzodiazepines that have been approved by the FDA for treating chronic insomnia include estazolam, flurazepam (Dalmane), temazepam (Restoril), quazepam (Doral), and triazolam (Halcion). Rapidly acting drugs with shorter half-lives (i.e., estazolam, triazolam, and temazepam) are preferred.

    What is stronger than Xanax for anxiety?

    Ativan treats more conditions than Xanax. The Food and Drug Administration (FDA) have approved the following uses: Xanax: Treatment of anxiety and panic disorders. Ativan tablets: Treatment of anxiety disorders.

    Which Benzo is best for long term use?

    With sustained levels of anxiety, long-acting benzodiazepines such as diazepam and clorazepate are usually preferred, while episodic anxiety normally responds best to shorter-acting drugs such as oxazepam or lorazepam.

    Is Erimin 5 a drug?

    The best way to help him his to get him into rehab. Erimin 5 is not prescriped definitely,it was taken illegally n in malaysia,its consider as “drugs” something like morphine,ice etc…

    How does Erimin work?

    Since erimin is described as a sub for XTC, spongebob decided to play some of his fav music. And erimin worked in a way that made spongebob enjoy his music way more! This of course was all done in the safety of spongebob’s home. The effects ended after about 1 hour though.

    Is Erimin still available in Japan?

    Outside of Japan, Erimin is available in much of East and Southeast Asia and was widely prescribed for the short-term treatment of severe insomnia in patients who have difficulty falling asleep or maintaining sleep. Sumitomo has ceased manufacturing Erimin since November 2015.

    What is the difference between Erimin 5 and nimetazepam?

    Erimin 5 is also an anticonvulsant. Erimin-5 tablets contains 5 mg of Nimetazepam of the highest purity. Erimin 5 is shipped in factory sealed aluminum blisters containing 10 x 5 mg tablets.

    Are the Peaky Blinders pictures real?

    Are the Peaky Blinders pictures real?

    The “real” faces of Birmingham’s Peaky Blinders have been revealed in a new exhibition. The portraits, based on mugshots in West Midlands Police’s archive, were painted by Birmingham artist Jon Jones.

    How historically accurate is Peaky Blinders?

    Peaky Blinders has always been a series deeply steeped in both historical realism and historical fabrication. While many of the key characters in the show are based on real-life historical figures, many of the events from its six-season run were fictionalized for dramatic effect.

    Was the Shelby family real?

    The Shelby family aren’t completely a work of fiction – Peaky Blinders creator Steven Knight was inspired by a real life Birmingham gang. Peaky Blinders, the hit BBC One crime drama, has always offered a blend of fact and fiction.

    What did the peaky blinders actually look like?

    They wore ‘billycock’ or bowler-style hats, made of hard felt, with a rakish, curved rim, two-and-a-half inches wide. The brims of their hats would be moulded into a point and worn tilted over one eye.

    Is Billy Kimber real?

    Yes, Billy Kimber was a real Birmingham gangster and leader of the real Birmingham Boys. The Birmingham Boys were a street gang who had significant power in the North of England and London between the 1910s and 1930. The head of The Birmingham Boys was William ‘Billy’ Kimber, from Aston, Birmingham.

    How rich were the real peaky blinders?

    A man like Tommy Shelby, the Peaky Blinders gangster boss, would now be worth an incredible £450million. It was calculated that the mobster’s assets, such as his properties, his betting empire, his clubs and bars, combined with his other business interests, would make him one of Britain’s richest people.

    Is Thomas Shelby rich?

    Peaky Blinders gangster boss Tommy Shelby would be worth an enormous £450million in today’s money. A superfan calculated the mobster’s assets, which include his properties, his bookmaking empire, his bars and clubs and his other business interests, which added together would make him one of Britain’s richest men.

    What does Thomas Shelby OBE mean?

    OBE stands for “Officer of the British Empire.” It’s a chivalric title granted by the monarch to an exemplary member of British society. This honor can be awarded for anything from outstanding military service to profound contributions to the arts to exemplary charity work.

    Did Peaky Blinders use razor blades?

    “They used their hats with razor blades sewn in to rob people. That’s what a Peaky Blinder was. “When they hit someone or headbutted someone on the nose while wearing one, it would cause their victim temporary blindness.”

    What is the black page on Instagram?

    What is the black page on Instagram?

    Instagram is filling up with black squares in the latest movement to protest against racial inequality and police brutality. The simple posts are intended as a way of expressing solidarity with the Black Lives Matter protests that have swept the US after the death of George Floyd.

    How do you come up with a hair stylist name?

    A few words that come to mind are color, dye, cut, trim, style, blow dry, perm, and curl. Using a verb in your hair salon name will emphasize what you do. Use rhymes: We all know that rhymes are very catchy, and using one in your hair salon name can help a customer or passerby remember the name for future business.

    What can I name my hair business?

    Below are some catchy and creative hair business names for your new business; let’s take a look.

    • The Hair Confidante.
    • Richy Hair.
    • Capital Hair.
    • The Designer Hair Company.
    • Hair Wonders.
    • Lush Hairs.
    • Hot Hair Pieces.
    • Fabulous Hair.

    What is a beautiful girl name?

    Beautiful Girl Names for Your Sweet Baby

    Cassandra Man’s defender, warrior Greek
    Catherine Pure Greek
    Cecily Blind; sixth Welsh
    Chanel Pipe French
    Charlotte Free man French

    What does black square mean?

    Some have posted the black square that became a popular symbol of solidarity for racial justice with the hashtag #blackouttuesday, while others issued their own videos or posts. Almost all of these travel companies promised to donate to organizations that work to fight racism and racial inequalities.

    Why are Instagram photos black?

    It’s possible that you are trying to post a photo that has been taken on another app, or it’s possible that your account settings are set to private. How to Cancel a Video Upload on Instagram?

    How do you make hair on Instagram?

    Hairdressers Instagram Guide

    1. Step 1: Setting up your profile. The first step of this Instagram Guide is to set up a good professional profile.
    2. Step 2: Start putting up content.
    3. Step 3: Be personal with your followers.
    4. Step 4: Hashtag and tagging your posts.
    5. Step 5: Get involved with Instagram Stories.

    Is there anything cheaper than OSB?

    Is there anything cheaper than OSB?

    All three types of rigid-foam insulation, to include expanded polystyrene (EPS), extruded polystyrene (XPS) and polyisocyanurate can be used as substitutes for OSB in sheathing exterior walls and roofs.

    What is the price of OSB right now?

    Highlights

    National Average Cost Minimum Cost Maximum Cost
    $49 per 4-by-8-foot sheet $32 per 4-by-8-foot sheet $77 per 4-by-8-foot sheet

    Is OSB pricing going down?

    But last week, the benchmark OSB price dropped by $100 per 1,000 square feet, or 23.5 percent, to $325 per 1,000 square feet. Industry observers said the price movement looks to be on pace to drop as quickly as it rose–the result, they said, of a cold-weather slackening in the pace of building.

    Why has the cost of OSB gone up?

    Because of its labor shortage, there were fewer people able to cut down trees and deliver them. This impacted the supply of lumber and created a shortage for OSB. Since there was a shortage, the price of OSB increased.

    What is lighter than plywood but just as strong?

    Particle Board What is this? The most affordable alternatives to plywood are undoubtedly particle boards. Made by condensing wood particles, particle boards are also much more lightweight than plywood and MDF.

    Is there a OSB shortage?

    In the most extreme case, the share of builders reporting a shortage of OSB skyrocketed by 83 points, from 9 to 92 percent. The shortage percentages for plywood, framing lumber and copper wiring also jumped by 70 points or more. The one item listed in 2021 but not in 2020 was appliances.

    How to offset high OSB prices?

    The strength of Thermo-Brace saves money over OSB because there is less worksite damage,which reduces replacement costs.

  • Thermo-Brace provides excellent moisture management because its⅛inch thickness forms a tight seal to the framing members which gives excellent protection against water and air infiltration.
  • Thermo-Brace is formaldehyde free.
  • What is the price of a 4×8 sheet of plywood?

    Price: 1/4″ Sandeply Hardwood : 4×8 Sheet : $18.97: 1/2″ Sandeply Hardwood: 4×8 Sheet :

    Should you be building with OSB or plywood?

    The National Tile Contractors Association and the Resilient Floor Covering Institute both recommend plywood for subflooring and underlayment, because it doesn’t have the risk of swollen edges that OSB does. Plywood also has a slight advantage in stiffness, which means that subflooring panels need not be quite as thick.

    How much does OSB cost?

    For OSB siding, that cost stays in the same general range, but the average drops down to $2,200 for the same 500 square feet. That averages between $3.50 and $7.20 per square foot. Prices might change depending on the material you choose, labor time required, and where you live.