Aging occurs in many different ways and is a natural process of life. In this article, we delve into the definition, neurobiology and physiology of the aging process as well as tips for maximizing health and aging well.
What is the difference between central sleep apnea and obstructive sleep apnea? In this lesson, we learn about sleep apnea, its symptoms, diagnosis, treatment, and differentiate between central sleep apnea and obstructive sleep apnea. USMLE
You probably go to sleep most – if not all – nights. You probably have dreamt during many of these nights. And you might feel rested every time you go to sleep. Yet did you know about the complex mental processes that happen every time we go to sleep?
In this chapter, we will introduce the first big idea in AP Calculus: Limits and Continuity. This a topic that is included in both the AB and BC Calculus courses. Even if your course hasn’t started yet, a good way to prepare yourself for it is to study limits, as they are generally easy to grasp. This will give you a head start on (most likely) the first topic you will learn in your AP calculus course, and can inhibit you from falling behind.
In this calculus article, we will talk about the methods for actually solving or evaluating limits. There are practice questions included, labeled PRACTICE, and they are there for you to test your understanding of the different methods. The answers are at the very bottom. Enjoy!
Chemical reactions happen around us all the time. These reactions occur when we cook or bake and even in our bodies, like when we breathe. Everyday objects are able to react and cause incredible reactions. Here are some easy science experiments you can create using things you can find around the house. Make sure you act safely during the experiment and have fun!
Biology Unit 5 Study Guide: Evolution. After his visit to the Galapagos Islands, Darwin came up with the theory of evolution. This theory stated that organisms change over time. The way that organisms change is through the process of natural selection. With examples, practice questions, and answers to help make evolution respiration easy to learn!
Throughout John Muir’s book, “My First Summer In the Sierra ”, he describes, as the title suggests, the time he spent in the High Sierra in the years prior to his strong conservation efforts. During this time he worked as a supervisor for a sheep dive. This book serves as Muir’s personal journal, detailing everything he saw and did during his time. Recording descriptions of flora and fauna as well as collection data in order to display the importance and beauty of the world around us.
Egungun is a form of ancestor worship where costumed dancers channel their deceased relatives as they parade through the streets. Family-oriented versions of this practice exist too, though the best known style of Egungun has to be the communal festival. The aims of both versions include remembrance, celebration, the earning of blessings, and lineal continuity through tradition.
“Scientists have found that music stimulates more parts of the brain than any other human function.” These are the words of Elena Mannes in her book, The Power of Music. Music has had significant impacts on communities throughout history and evidently remains influential today through its cultural effects on society and scientific effects on the individual brain.
Music has essentially existed since the beginning of history. Although extremely different from what comes to mind when thinking about music today, it has been representative of many different cultures, religions, societies, and events throughout centuries.
The history of music begins as early as Medieval times when music had emerged in society through the influence of the power of Roman Catholic churches. The Medieval period was the longest period of music in history and ran between the years 400 and 1400. This music was largely monophonic meaning there was a single melody to each piece of music. Gregorian chant, which would have a single line of vocal melody, was a very common type of music during this time which was heavily influenced by the Church. As the Medieval times evolved, monophonic music eventually turned into polyphonic music with multiple melodies. When the Catholic Church wanted to unify the Church music across the Western world, music notation was first created and documented so people could share and play the same music. Instruments that characterized the music of this era include wooden flutes and wooden string instruments including the first bowed instruments such as the Lyra.
Learn about two very cool theorems in calculus using limits and graphing! The squeeze theorem is a useful tool for analyzing the limit of a function at a certain point, often when other methods (such as factoring or multiplying by the conjugate) do not work. This theorem also has other names like the Sandwich Theorem or the Pinch Theorem, but it is most commonly called the Squeeze Theorem. The Intermediate Value Theorem, often abbreviated as IVT, deals with a single function unlike the Squeeze Theorem.
In the midst of the COVID-19 pandemic, many people have been forced to quarantine themselves in their homes. Although countries are starting to open and people are exiting quarantine, social distancing is still common and previously planned summer activities such as trips, internships and summer jobs have been postponed or cancelled. With summer having arrived, students will no longer be distracted by their classes. This raises the question, what can we do over a quarantined summer?
The overwhelming amount of commercials, advertisements, and promotional campaigns that Americans are bombarded with is astronomical, to the point it is affecting their dietary habits. As the turn from a nomadic lifestyle switched to one with steady food supplies and surplus, history of mankind derailed and took an entirely different course, one that would later involve corporations utilizing marketing communications to influence their consumers.
The basics of rewilding (at least in North America) are the Three C’s: Cores, Corridors, and Carnivores. Rewilding was developed in the 1990’s as a new approach to ecological restoration. Proponents have characterized it as being active rather than reactive. What this means is that instead of viewing conservation as stemming a tide or becoming shepherds to ever-declining animal populations, rewilding is focused on restoring the equilibrium of ecological systems. This is accomplished through a variety of methods that are grouped together under the Three C’s.
Happy Valentine’s Day! Love is in the air! In astrology, the 12 zodiac signs are believed to have unique personality traits and preferences that influence their relationships and love lives. We explore each of the fantastic 12 horoscopes in love including Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.
What happens when you put good people in an evil place? Does humanity win over evil, or does evil triumph? Philip Zimbardo, a psychologist and a professor at Stanford University posed the same exact question in 1971, thereby leading to what is known as The Stanford Prison Experiment (SPE). The experiment was originally created to uncover the truth about human nature, a more in-depth look on what our true ambitions were, what really drove us. Zimbardo began by choosing 24 volunteers, making 12 of them “guards” and the other 12 “prisoners”. They were taken to a prison simulation, a fabricated illusion to make the volunteers feel as if they were actually in prison. He began by giving the guards ultimate power and left the prisoners vulnerable. This evidently led to a distinction of power between the two groups. 45 years later, people still ponder the question that drove the experiment to its end. Was this study ethically right? The Stanford Prison Experiment was not ethically right, it stripped volunteers of emotion temporarily, forcing them to turn against each other and was physically harmful to the majority of the participants.
In this article, Infinite limits are limits that evaluate to infinity. You can, however, have limits that are evaluated at infinity or have an evaluated value of infinity. While infinity is a strange concept, we can use it to determine the behavior of functions. This leads us to the discussion of infinite limits and limits at infinity.
Biology Unit 3 Study Guide: Cellular Processes – Photosynthesis and Cellular Respiration. Light Reactions and Calvin Cycle. Glycolysis, Krebs Cycle, and Electron Transport Chain. With examples and answers to help make photosynthesis and cellular respiration easy to learn!
In the last two articles, we talked about limits and their application in determining the continuity of a function. Here, we will apply those skills to few practice questions. Attempt the problems on your own at first; however, if you get stuck, the solution to each problem is just below it. These problems vaguely range from easy to hard. Enjoy!
The “fight or flight” response is in response to impending danger. For example, the stress responses kicks in when seeing a snake slithering towards you or running away from a bear in the woods. Homeostasis is the normal equilibrium of body function, so stress can be induced by belief that homeostasis might be interrupted. In this guide, we share the effects of stress on the human body system, psychology, immune system, and long-term health effects of chronic stress.
Nutrition: Glucose and Diabetes Type 1 vs. Diabetes Type 2, Carbohydrates, Lipids, and Proteins
When you hear the word “robot”, what image usually comes to mind? Is it a metallic, boxy machine? A sleek android that talks to people? A robot is a machine that is automatically operated and completes tasks in replacement for humans. Some robots are humanoid and have actions that resemble human movement, such as ASIMO (Advanced Step in Innovative Mobility), a robot created by Honda that can walk with two legs (Honda).
When the term tea culture comes up, people usually think of places like Japan, China, or England, though perhaps Afghanistan deserves to be in this lineup too. While not as well known as those already mentioned, Afghanistan’s tea culture is a venerable one that dates back centuries. As with many ancient cultural artifacts, tea came to Afghanistan by way of the Silk Road, likely via merchants going to or from China. This tradition continues to this day, as while the country does grow some of its own tea, the majority of Afghanistan’s tea consumption relies on imports from China and Pakistan.
Back in 2016, Rio de Janeiro hosted the Summer Olympics. The opening ceremony featured bossa nova, capoeira, and laser-lit choreography depicting key points in Brazil’s history. Among these theatric renditions was a curious biplane aviator that the Olympic announcer noted Brazilians claim to have beaten the Wright Brothers in their claim to fame. Are there any merits to this assertion? Has history snubbed this Brazilian inventor?
Moderate and extreme are relative terms. What many assume to be the normal conditions for life do not apply equally across all species. Habitability can be thought of in terms of the Goldilocks principle. For example, to survive people need an environment that is not too cold and not too hot. Ranges like this exist for other factors as well, such as pressure. However, what is just right for us and most other creatures can be too much or too little for some. Animals that live on the sea floor provide an illustrative example in this regard. Where people need submersibles to maintain their equilibria, creatures that natural selection has adapted to thrive in the ocean’s depths are right at home. Cold, highly pressurized environments are the norm for them. When deep sea creatures are brought to the surface through accident or scientific curiosity they often either melt, as with glacial ice worms, or fatally decompress, like with blobfish. In this way the term extremophile is a relative one and is used to describe organisms that live in environments that are extreme to us. Beyond their novelty, extremophiles are important objects of study as they challenge and expand our notions of life and its necessities.
Moosmosis 