A Primer on Radiation Chemistry

A Primer on Radiation ChemistryRadiation chemistry is a critical topic in the world of learning how to do radiation oncology. It is important to understand this topic because your health depends on it, so it's necessary to learn about this as much as possible.Radiation chemistry takes the form of a kind of chemistry that can be found in various forms and sources. The most common sources are that of some radioactive materials such as that from cigarette smoke, nuclear fission, and even cell phones. On the other hand, there are also sources of radiotaxins like those of cosmic rays.This kind of chemistry refers to the measurement of the radiation from these sources. Radiation is really a fact of life in the world of chemistry.In order to ensure that you are getting the proper dose of radiation you need to know some basic things about this field. This includes knowing the nature of radiation and the radiation delivery system and the essential components of this kind of chemistry.As we li ve in today's world of modern technology, radiation has been presented in many ways, the most well known being in X-rays and ultrasound. Both of these deliver beams of radiation and we have been exposed to this for many years.Radicals include not only atoms and molecules but also chemical elements. All of them are produced by nuclear decay, which is one of the main sources of radiation, but it isn't the only source. Molecules containing radioactive isotopes are also produced, such as cesium.You can now easily see that the general parts of radiation chemistry are atoms, radiopharmaceuticals, radiation and isotopes. But it is the interaction between these kinds of elements that are of most importance.

7 Ways to Stop Procrastinating and Be More Productive

Introvert Whisperer / 7 Ways to Stop Procrastinating and Be More Productive Your 7-Step Guide to Eliminating Procrastination From Your Life Ever wonder why you’ve been a procrastinator your entire life? Let’s start by saying this: You’re not alone. Maybe you’ve convinced yourself that you work better under pressure. Or maybe you’re easily distracted and have a hard time focusing. Whatever your excuse is, it’s time to break free from your procrastinating ways! Today we’ll show you a few simple things that you can do to become more productive and alleviate the stress that comes with procrastination. Keep reading for our 7-step guide to eliminating procrastination from your life once and for all! #1 Break Down Big Tasks into Little Ones Sometimes we procrastinate because a project or a task seems so overwhelming that we dread the thought of getting started. But there’s an easy way to get around that… Rather than looking at a project as a whole, break it down into smaller parts. Then, do one segment at a time so it won’t feel so overwhelming. For example: Do you have to write an essay for school or prepare a report for work? Instead of trying to tackle the whole thing at once, start with one small section. Write the intro now. Write the body of the report tomorrow. Write the conclusion the next day. Not looking forward to cleaning your closet or rearranging your bedroom? Do it in steps. Fold and organize the clothing in your drawers today. Tackle your nightstand or bureau tomorrow. Reorganize your closet over the weekend. If you break big tasks down into smaller ones, every project will seem more manageable!   #2 Get a Calendar There’s a reason why organized people (aka people who don’t procrastinate) live by calendars and schedules. It helps them focus and stay on-task. If you don’t already have one, buy a paper calendar or download a calendar app for your phone. It’s time to start organizing your time! With strong time-management skills, you can stop procrastinating forever. Start by jotting down the things you need to do and when you need to have them done. Highlight items that have a specific deadline so you can prioritize those. If need be, set your own personal deadline a day or two in advance of the due date. That way, you’ll never have to do anything at the last minute again.   #3 Hold Yourself Accountable Once you’ve created a calendar, tell a friend or coworker know that you’re trying to change your procrastinating ways. Then, ask that person to check in on you to see how much progress you’re making. Having someone else hold you accountable is a great way to change your behavior. If you set a goal for yourself and don’t achieve it, it’s easy to make excuses. By asking a friend to hold you accountable, you’ll be more likely to commit to the task. Want to hold yourself extra accountable? Share this news with someone who’s extremely organized and always early. They’ll make sure that you stick to your new habit!   #4 Eliminate Distractions You don’t have to delete your social media accounts or cancel your Netflix subscription to be more productive. But you have to try to stop wasting time. You can still check your Twitter feed, watch YouTube videos, and binge-watch your favorite shows â€" just do it within reason. Be conscious of how much time you spend on daily distractions so you know where to cut back. If need be, set an alarm on your phone to prevent yourself from getting distracted. That way, you’ll know how much time you’re wasting and you can get back to work as soon as possible. #5 Stop Trying to Be Perfect A lot of procrastinators put things off because they’re waiting for the “perfect time” to do something. Some people are convinced that they do their best work under pressure. Here’s the reality: There is no perfect time, and there are no perfect people. If you put projects off because you want to be at your peak when you tackle them, you’ll find yourself pushing things off until the last minute Rather than striving to be perfect, just do it now and do your best.   #6 Give Yourself Some Incentives Everyone likes to be rewarded. So if you need to treat yourself with a small reward when you complete each task, go for it! After you finish something, reward yourself with a half-hour to watch your favorite TV show. Give yourself 20 minutes of free time so you can check your Twitter feed or post an Instagram story. Reward yourself with a 15-minute break and have a cup of coffee, eat a bowl of ice cream, or meditate. Make something you love a reward that you only get to enjoy once you’ve finished an important task. This is a great way to put procrastination behind you forever.   #7 Start Right Now The best way to break a bad habit is to start immediately. So as soon as you’re done reading this guide, pick one thing on your to-do list and do it now! There’s never going to be a perfect time to do a task that you’d rather not do at all. The sooner you realize that, the more productive you’ll be. If you honestly want to stop procrastinating, now is the time to do it. Decide which task or chore you have to do and start within the next three minutes. Conclusion In order to change bad habits, you have to replace them with good ones. And for procrastinators, getting organized is the perfect replacement behavior. Get a calendar and keep track of everything you need to do and when you need to do it Break big tasks down into smaller ones so they don’t seem so overwhelming Hold yourself accountable for your actions by sharing your goals with friends or coworkers Identify the things that distract you and limit the amount of time you spend on those things And last but not least, stop trying to be perfect. Don’t wait for the perfect time to get things done. Give yourself incentives so that the sooner you complete a task, the sooner you’ll be able to enjoy the reward. Now get started! Pick one thing you’ve been putting off and do it now. You may be surprised at how good it feels to get things done ahead of schedule. Author Bio:

What Are Some Singing Software Options, and Can They Help Me

What Are Some Singing Software Options, and Can They Help Me Suzy S. The human voice is the most expressive “instrument” in the orchestra of sound that is music. Nothing can express or invoke the emotions of the listener like a beautiful voice! Of course, developing your vocal ability takes time and practice. It’s important to understand and develop proper breathing technique, pitch recognition, and range. The traditional method of learning to sing is to study with a qualified vocal teacher. A good teacher understands their students strengths and weaknesses, and can develop lesson plans designed to address their needs. They will work with you to develop the techniques necessary to develop your abilities. Your teacher is also there to push you to move outside of your comfort zone and guide you on the path of learning. Today, however, computers and technology are changing the way we communicate, get our news, and even learn new skills. If you’ve always been interested in becoming a vocalist, there are many online and singing software options available that can supplement your vocal lessons. Advances in music learning software have grown and include many different singing software programs to help you to learn to sing. While nothing can entirely replace the benefits of working with a qualified teacher, these singing software learning programs can help you develop the skills necessary to become a good vocalist.  If you are just beginning, these packages offer a cost-effective way to help you to decide if you’d like to pursue your studies further.  Let’s take a look at some of the singing software options available. Learning to Sing Using Singing Software Learning to sing requires enthusiasm, persistence, patience, focus, and dedication. Without these basic attributes, no teacher in the world, human or software will help you to learn. These three software packages and your desire can get you started on a lifetime of learning! 1. Cantovation Sing and See $49 Mac and Windows This software package takes an interesting approach to learning, by enabling you to see your voice on your computer screen, and using pitch analysis algorithms to give you feedback as you sing. A piano keyboard on screen highlights the note you are singing, and then displays a graph that shows your voice in relation to absolute pitch using a visual musical scale. When you sing a musical interval, the software shows how your voice makes the transition between notes, and whether you overshoot or undershoot the target pitch. This helps you to develop pitch accuracy and intonation, two vital skills you’ll need as a vocalist. 2. eMedia Singing Method $49.95 Mac and Windows eMedia’s Singing Method software is a set of over 230 step-by-step lessons designed to take you from the beginning stages to an advanced level of learning to sing. It covers folk, pop, jazz, RB, classical, opera voice, and show tunes, and features over 80 complete songs, including hits by John Lennon, David Bowie, Mick Jagger, and Diana Ross. Also included are live piano performance versions and MIDI file versions that you can speed up or slow down. Interactive feedback shows whether you’re singing in tune and the performance evaluation mode offers specific feedback on mistakes and gives you an overall score. Progress tracking allows you to print personalized reports and keep track of your scores to measure your improvement.  The program also includes a built-in metronome, and you can learn to sight read with interactive ear training and quizzes to test your pitch knowledge.  The lessons feature Ory Brown,  who has a masters in music education and over 25 years of experience, including appearances at Carnegie Hall, Lincoln Center, and on the Late Show with David Letterman. This package is a great value for the price! 3. EarMaster Pro 6 Sight Singing and Ear Training $49.95 Mac and Windows This is a comprehensive ear-training program for singers of all levels. It includes two courses with over 2,000 exercises for sight singing, ear training, and rhythmic studies, ranging from beginner through advanced stages. As you progress through the exercises, the difficulty level raises automatically to match your new skills. With a detailed statistics window, it’s easy to track your progress and analyze your strengths and weaknesses. You can review your results lesson-by-lesson or day-to-day. This helps you identify areas needing more work and you can then customize your lessons to focus on those areas needing work.  This program not only works for singers, it can also be used by any musician to improve their ear. These three singing software programs are only a sample of what’s available online for the vocalist. There are also hundreds of free lessons on sites like YouTube, live online lesson opportunities, and many other eBooks, study guides, and videos out there! Learning Using Software vs. One-on-One Learning These singing software packages will teach you a lot about your voice and the techniques involved with singing, but are they enough? The software approach offers flexibility and the ability to progress at your own pace while structuring your lessons around your schedule. However, it also requires a level of dedication that may be lacking in some singers, especially in younger students. It can be very frustrating when you have difficulty mastering a challenging technique. This is where working with an experienced instructor to help you through the rough patches can be the difference between a lifetime of music and giving up! Singing software is an excellent tool that can work well for some individuals who are driven to succeed, but most of these packages work best when combined with studying with an experienced music teacher. There are no shortcuts to learning to play any musical instrument properly, including learning to sing. With practice, the latest cutting-edge learning tools, and the help of a qualified teacher to keep you motivated and inspired, you can achieve your dreams of learning to sing. The most important step is the first one, though: just get started! Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher  Photo  by Mike Finkelstein

Find Drum Lessons In Edinburgh

Find Drum Lessons In Edinburgh The Best Drum Lessons In Edinburgh Chapters4 Reasons You Should Learn The DrumsBecome as Good As Ted McKennaDave Major Drum SchoolDiego Zanelli Drum LessonsMorningside School of MusicHire A Private Drum TeacherThe rock band shattered after Rock Drill was released in 1978, and McKenna was asked to succeed Rod de’Ath in Rory Gallagher’s band as it reverted to a dynamism trio line-up.McKenna performed on Gallagher’s excellent run of albums for Chrysalis Records, Photo-Finish in 1978, on Top Priority the next year, and on 1980’s live album Stage Struck.Once you get a bit more advanced in your drumming, you may seek out other players to learn with Source: Pixabay Credit: SkeezeLook up for drum lessons in Cardiff.Drum Lessons For TeenagersTheir fully certified drumming teachers offer support to every teenager’s musical exams in school. Most colleges in Edinburgh follow the SQA recommended drumming syllabus, Rockschool.These graded Rockschool exams can be used in exams to obtain qualifications such as National 5. U CAS also recognised the Rockschool syllabus and awards points depending on the level of musical achievement obtained by a student.Therefore, Rockschool awards can be advantageous in university applications, and we can help you with these awards.All of their teachers are fully qualified and experts in their field because they only employ the most exceptional educators, so their clients get exactly what they need in their school exams.Their staff have been teaching high school pupils from the Edinburgh area for over ten years and helping them through their music curriculum. They are proud of their high exam pass rate, as well as most of their students gain merits and distinctions.Learning how to use your drum kit can be approached from several different angles. Photo credit: nikolaymarushchak on VisualHunt.comHire A Private Drum TeacherIf you prefer you can always hire a private drum teacher. And on Superprof, there are hundreds of them registered and ready to help you learn the basic s of the drums and who will certainly also help you to seat all the music exams you may wish. From total beginner to a grade 8 drummer, all you need is patience and hard work.Check drum lessons all over the UK.Find more drum lessons in the UK:Drum lessons in ManchesterDrum lessons in LondonDrum lessons in BirminghamDrum lessons in LeedsDrum lessons in Glasgow

The Solar System and the Night Sky.

The Solar System and the Night Sky. What You Can See â€" and What You Can’t â€" in Our Solar System. ChaptersWhat is a Solar System? and How was it Formed?What’s in Our Solar System?And What’s Beyond Our Solar System?There is nothing more marvellous than our solar system. It is the only place in the universe that is known (by us, at least) to support life, and part of the wondrousness of this strange little backwater in the Milky Way galaxy is its relative teeny-tininess.Because, really, our galactic home is not hugely significant in the great scheme of things. Our planetary system is on one of the outer spurs of the Milky Way â€" a galaxy that has potentially four hundred billion stars and therefore four hundred billion potentially similar systems. Just to give you an idea, there are thought to be at least a hundred billion galaxies too.Yet, enough of that; the numbers are too much for a mind to comprehend. Let’s focus on the thing that we know a bit more about â€" even if we don’t know much about it at all.Because our solar system is full of amazing things â€" things that we’ve hardly begun to scratch the surface of. From balls of ice in the far reaches of the solar system to the gorgeous rings of Saturn, the system is really a quite amazing place.Here, we’re going to run through some of the most important things that you should know about our neck of the galactic woods: how it was formed, what’s in it, and what lies beyond.  Find out everything about astronomy - and what the differences are between astronomy, astrophysics, and cosmology. PetarPhysics Teacher 5.00 (11) £40/h1st lesson free!Discover all our tutors MyriamPhysics Teacher 5.00 (13) £20/h1st lesson free!Discover all our tutors Dr parikhPhysics Teacher 5.00 (8) £40/h1st lesson free!Discover all our tutors RubenPhysics Teacher 5.00 (1) £15/h1st lesson free!Discover all our tutors FrankPhysics Teacher 5.00 (8) £90/h1st lesson free!Discover all our tutors JidePhysics Teacher 4.80 (5) £30/h1st lesson free!Discover all our tutors DorothyPhysics Teacher 5.00 (5) £40/h1st les son free!Discover all our tutors RahulPhysics Teacher £20/h1st lesson free!Discover all our tutorsWhat is a Solar System? and How was it Formed?The definition of a solar system is, if you think about it, really quite self-explanatory. It is made up of the sun and everything that orbits it gravitationally.Just as Earth has a gravitational pull, so does every planet, star, or object in the universe. The bigger the object, the stronger the gravitational pull.This is why the Sun â€" the biggest object in our solar system â€" is the thing around which everything spins. The planets â€" and all other sorts of things too â€" are all suspended by this solar pull, which allows us to refer to a thing called the solar system of things that all depend on each other.But as we’ve said, it is wrong to call our solar system the solar system â€" as it is one of literally billions. The closest, by the way, is Proxima Centauri, some 4.2 light years away.Find out about the major discoveries in astrop hysics!So How was the Solar System Formed?Like all solar systems, ours came into being through the collapse of an interstellar nebula or molecular cloud. These big drifting clouds of dust and gas slowly form into clumps due to the gravity of increasingly dense gases.This all happened some 4.6 billion years ago, when the cloud core became the protostar which ultimately became the Sun. Meanwhile, as the gravitational pull of the Sun became stronger, the nebula would have started spinning more quickly, producing the accretion of ever larger planets and objects.Quite an interesting thing to consider is that there would have been hundreds and thousands of protoplanets, dwarf planets, and general debris throughout the solar system, which either got destroyed over the years or else merged with other planets. The remnants of all this can still be seen in the asteroid belt beyond Mars and the Kuiper Belt beyond Neptune.Find out more about the formation of stars! Nebulae are some of the most beautiful things in the universe.What’s in Our Solar System?Now you know what a solar system is, let’s take a look in more detail at what you might find if you were to take a trip around it.We suspect that you’ll find most of these names familiar already.The Planets of Our Solar System.There’s been a fair amount of discussion about the planets in our solar system in the last decade or so, as the definition of a planet was changed.This meant that Pluto â€" poor Pluto â€" was kicked off the list and recognised instead as a dwarf planet.So, what is a planet these days? It’s something incredibly specific actually, as such an object needs to meet four criteria:It needs to orbit a star or the remnants of a star;It should be big enough that its gravity has caused it to become round;It should not be so big that it causes thermonuclear fusion â€" as a star would; andIt should have cleared its neighbourhood of celestial bodies, meaning that things either orbit it or do not exist anymore.The Eight Planets in the Solar System.Mercury â€" The closest planet to the Sun, it is also the smallest planet in the Solar System, with an orbit of around eighty-eight days. Like the Earth it is a rocky planet â€" and its surface is heavily cratered.Venus â€" The second planet from the Sun, Venus is actually the brightest object in the night sky after the Moon â€" and it can actually cast a shadow. It is smaller than Earth and, like Mercury, does not have any moons.Earth â€" Home sweet home. Earth is the third planet, and, like Venus and Mars, it sits in the Sun’s ‘habitable zone’. It is, however, the only planet to have an atmosphere that is actually habitable.Mars â€" The Red Planet is the last of the terrestrial planets â€" those planets made of rock. We’ve done twenty-six successful missions to Mars with the hope that maybe we’ll find evidence of life.Jupiter â€" Beyond the asteroid belt sits Jupiter, the largest of the solar system†™s planets. It has a mass two and a half times that of all other planets combined. Made of gas, it has seventy-nine moons, some of which are bigger than Mercury.Saturn â€" Famous for its rings â€" made of ice particles primarily â€" Saturn is the second-biggest planet in the solar system, and it too is a gas giant.Uranus â€" Often used as a dirty pun, Uranus is the first of the ice giants â€" the two planets at the furthest end of the solar system. Predictably, it is made of ice.Neptune â€" The final planet in the solar system, Neptune is cold â€" like, really cold.You can get a maths physics tutor here. Saturn is one of the most beautiful planets. Image from NASAThe Solar System’s Dwarf Planets.Beyond the major planets â€" which pretty everybody probably knows by heart â€" there are the dwarf planets. These are celestial bodies that aren’t quite planets, as they don’t fit the four criteria outlined above.The most important of these criteria is that the dwarf planets have not ‘cleared their neighbourhood’ â€" meaning that they are not gravitationally dominant in their particular area.Pluto, the most famous of the dwarf planets, has not cleared its neighbourhood, for example. Its orbit is affected by that of Neptune. Meanwhile, it moves in what is known as the Kuiper Belt, which, if it were a proper planet, would be in its gravitational sphere.There are potentially hundreds of dwarf planets in the Solar System. However, identifying them requires a lot of work and observation. There are many candidates, but only five have been confirmed.These are Pluto, Eris, Ceres, Makemake, and Haumea â€" of which only Ceres can be found in the asteroid belt between Mars and Jupiter. All the others are beyond Neptune.What Else is in Our Solar System?Whilst the most famous parts of the Solar System are those planets that are so well recognised, there are thousands of different bodies that constitute the rest of our solar system.For example, there are thought to be over eight hundred thousand asteroids as well as three and a half thousand comets and over two hundred moons.But think about it. The end of the solar system is thought to be where the solar wind reaches and where the sun’s gravity ends. And these are both huge distances beyond what we know of the solar system.The limit of the solar wind is four times Pluto’s distance from the Sun, whilst the gravitational reach of the Sun stretches a thousand times further.Is there life in our galaxy? Let's find out! The universe is just so incredibly - large.And What’s Beyond Our Solar System?When you look up at the night sky, the six brightest points of light you will see are all in the Solar System.After that, however, the brightest things you will see are other stars at the centre of different solar systems.The brightest of these are Sirius (or Canis Majoris), Canopus, and Rigil Kentaurus, part of the Alpha Centauri system (our star’s neighbour). These are all very close stars, with Sirius sitting in the Greater Dog constellation, Canopus in Carina, and Alpha Centauri in Centaurus.

CUBE ROOT

CUBE ROOT In order to understand cube root, we first need to know what a cube is. A number is said to be cubed when it is used three times in multiplication. Now, cube root is the opposite of cube. Cube root is said to be the value which is cubed to give the original number to us. Like when we look at a tree we just see the trunk and the leaves but their roots cant be seen which actually produced it. Thus, cube root is the value which produced the cube. To denote that the number is cubed, we write it as 5^3 which means that the number 5 is to be multiplied three times. Cube root is denoted by which is a radical symbol with small 3 to show that it is cube root. Example 1: Find the cube of 5 and cube root of 125. Solution: STEP 1: Multiply the number 5 three times i.e. 5 x 5 x 5 = 125 = Therefore, 125 is the cube of 5 = Hence, 5^3 = 125 = STEP 2: Calculating the cube root of 125: 3125 = 5 = Therefore, 5 is the cube root of 125 i.e. 125= 5 x 5 x 5. = Since 5 appeared three times in the multiplication, thus 5 is the cube root of 125. Example 2: Find the cube root of 64. Solution: STEP 1: Calculating the cube root of 64: 364 = 4 = Therefore, the cube root of 64 is 4 i.e. 64 = 4 x 4 x 4. Since 4 appeared three times in the multiplication, thus 4 is the cube root of 64. = Hence, 4 is the cube root of 64.

7 Great Audition Songs for Sopranos

7 Great Audition Songs for Sopranos Sign up successful 2. “Gimme Gimme” Thoroughly Modern Millie “Gimme Gimme” from Thoroughly Modern Millie is a great choice to show off your skills through transitioning from a slow, gentle beginning to an energetic end. The most challenging part of the song is probably the final belted out C, as it is held for a very long time. 3. “A Wonderful Guy” South Pacific Simple yet sure to impress if it is sung well, “A Wonderful Guy” from  South Pacific is a perfect song to choose if you need to show off some acting skills while you are singing. With a very small range, it is not a difficult piece to sing, but can produce great results when executed correctly. Consider “A Wonderful Guy” if you are auditioning for a lighthearted role. 4. “Till There Was You” The Music Man “Till There Was You” is a beautiful classic that allows you to demonstrate your wide vocal range, while showing how you are able to incorporate acting skills into singing. This is an ideal choice for sopranos to show how they can interpret and incorporate lyrics into their performance. 5. “Fine, Fine Line” Avenue Q Sopranos who have a classic Broadway tone would do well to consider “Fine, Fine Line” from Avenue Q. While soft and thoughtful, this song will show off your ability to hit powerful notes, and it includes a number of held high notes. 6. “Where Is Love?” Oliver! “Where Is Love?” is a favorite among children auditioning for soprano roles and is frequently chosen when the audition does not specify a particular piece. This is a great option for boys with a powerful range. 7. The Boy Next Door Meet Me In Saint Louis Another song geared toward younger singers is “The Boy Next Door”. Songs like this one are ideal in order to demonstrate range, vocal abilities and ability to express emotion in lyrics. Photo by Dickson Phua Interested in Private Lessons? Search thousands of teachers for local and live, online lessons. Sign up for convenient, affordable private lessons today! Search for Your Teacher