Since the beginning of atomic testing steel has become weakly radioactive making it useless for applications sensitive to radiation such as in the manufacture of Giger Counters.

The endocrine system is composed of glands that produce hormones to affect changes in distant target organs. It is crucial in maintaining homeostasis—balance—in the body. There are seven major endocrine glands scattered throughout the...

In this video, the mean for two dependent samples are tested.
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This clip is from the chapter "Hypothesis Testing" of the series "Statistics for Data Science and Business Analysis".This section explains null and alternative...

In this video, the other classification of variables is shown - levels of measurement.
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This clip is from the chapter "Descriptive Statistics Fundamentals" of the series "Statistics for Data Science and Business...

This video shows real life examples of confidence intervals on dependent samples.
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This clip is from the chapter "Confidence Intervals" of the series "Statistics for Data Science and Business Analysis".This section focuses...

The video discusses the important ecological concepts of trophic levels and biomass. The video provides an example of a food chain, from grass plants as producers to apex predators that have no predators of their own. The video explains...

Vitamin K Deficiency involves many causes including decreased dietary intake, decreased absorption of Vitamin K, and certain medications. Vitamin K Deficiency leads to issues involving coagulation factors and bone mineralization. In this...

The video is a lecture presentation on trophic levels in ecosystems. The presenter defines trophic levels as feeding levels in a community or ecosystem and explains how they can be used to organize feeding relationships. The concept of a...

Type 2 diabetes is reaching near-epidemic levels. It is a serious health condition affecting millions of people and increasing their risk for additional health issues. More young people have been diagnosed with diabetes than ever before....

This video explains infertility and the various treatments available for it. The video discusses two types of treatments - fertility drugs and in-vitro fertilization (IVF). Both treatments have advantages and disadvantages, and the video...

We learned about gene expression in biochemistry, which is comprised of transcription and translation, and referred to as the "central dogma" of molecular biology. But how is this process regulated? How does a cell know which genes to...

Vitamin D Deficiency (Part 2) | Hyperparathyroidism, Clinical Features (ex. Osteoporosis), Diagnosis, Treatment



This is part 2 in a series on Vitamin D deficiency. In this lesson, we continue with our discussion on Vitamin D...

This video introduces the viewer to biomes, ecosystems and habitats. With a clear explanation of what makes them different and how they are connected. Biotic and Abiotic factors are explained and discussed.

The video discusses the topic of infertility and ways to treat and overcome it. It explains how fertility problems can affect both male and female partners and introduces Assisted Reproductive Technology (ART) as a solution. The process...

This video discusses the difference between communicable and non-communicable diseases, and the various risk factors that contribute to non-communicable diseases. It also explores the different effects of lifestyle factors on the...

It explains health and its significance and describes conditions for good personal and community health.

Learn about the energy levels and electronic configurations of atoms of different elements in this video from the Properties of Matter chapter of the Virtual School GCSE Chemistry.

Learn the basics about Energy Levels and Electron Configuration. Where do you find energy levels? How do you recognize electron configuration? Find out more in this video!

In this video, students learn how to determine the level of accuracy needed when solving problems. They explore different situations that require varying levels of precision and accuracy, such as estimating pizza quantities, calculating...

In this lesson, you can learn to write a CV or resume in English.

If you’re wondering, ‘CV’ and ‘resume’ have the same meaning. The word ‘CV’ is more common in the UK, while ‘resume’ is more common in the
USA.
In...

Our body is a pretty fantastic feat of engineering. But how does it work? How do all of the different components come together to keep us alive, keep us functioning and achieving our goals? In this video we are going to look at the...

So what is homeostasis is a term first defined by Claude Bernard in 1865 it means maintaining a constant internal environment this is a bit like car brain works senses all around the body imaging various things and sending the...

The video discusses different ways to segment markets as a marketer. The speaker identifies three main ways - consumer behavior, geography and demographics. The speaker highlights how each of these variables can help to identify similar...

For thousands of years scientists have named and categorized the vast array of life on Earth. This series of videos highlights the major advances concerning the classification of life, more specifically focusing on current trends in...