Search results for ‘biology’

Oceanic Forestry: Coral Farming and Biorocks

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Climate change affects the entirety of the earth’s surface, and nowhere more so than our oceans. While our seas cover about two-thirds of the earth’s surface they absorb over ninety percent of the additional heat attributable to global warming. Both land masses and bodies of water absorb and reflect solar radiation that rebounds off of the greenhouse gases trapped in our atmosphere, but the latter is generally more absorptive and holds on to heat longer due to differences in physical properties. This of course has led to increases in global seawater temperatures, which has and continues to endanger several aquatic species. This article will examine one of those species and go over human efforts to preserve it.

The Collapsed Lung: Types of Pneumothorax

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Pneumothorax also known as collapsed lung occurs when air is trapped in the pleural space. Trapped air causes a loss of negative pressure in the pleural cavity, reduces surface tension, and induces the lungs to collapse. There are 3 types of Pneumothorax or collapsed lungs: 1) Spontaneous 2) Traumatic, and 3) Tension Pneumothorax.

In this lesson, we learn the different types of pneumothorax (collapsed lung) and important terminology. USMLE

COVID-19 Pandemic: What does isolation do to the brain?

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Does being alone at home make a person go insane? After weeks of social distancing because of COVID-19, people locked up in their homes may be getting bored and restless. Attending school, going out to eat, hanging out with friends — parts of their lives that are normal — are no longer possible. What is the science behind the human’s social brain, and what does isolation do to the brain?

How the Environment Responded to Covid-19

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The coronavirus pandemic may seem like one of the worst things that could be happening to the world right now. And although that might be the case for us, the environment is finally getting the break from human activity that it’s been longing for. With businesses shut down, traveling banned, and everyone in lockdown, traffic and pollution have been significantly reduced and it’s had some notable effects on nature. So while you’re stuck being quarantined, here are some cool things happening around the world as a result.

A Global Epidemic: The Novel Coronavirus

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A Global Epidemic: The Novel 2019 Coronavirus

On December 31st, 2019, Chinese officials informed the World Health Organization that a group of strange cases of pneumonia were detected in the city of Wuhan. The cause of the pneumonia was unknown, but a week later, Chinese health officials confirmed that the cases were associated with a novel coronavirus.

In this lesson, we learn about what is the coronavirus, how the coronavirus spreads, how deadly it is, and why COVID-19 matters for our public and global health.

Freud’s Psychology: Psychoanalysis, Id Ego Superego, and Dream Interpretation

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Chances are, you’ve heard of the Oedipus complex or the idea that your dreams reveal your inner desires. The creator of these ideas was Sigmund Freud, an Austrian neurologist and the founding father of psychoanalysis. His ideas and theories still remain very influential in the fields of psychology, psychiatry, and psychotherapy, and their impact can even be seen in the visual arts and humanities.

Rewilding and Not So Wildlife

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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.

Macroeconomics: The Definition of GDP and Its Implications

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GDP is the universal measure of income among different countries. We’ve heard of the term GDP multiple times, but what exactly is GDP, and how do we measure an entire country’s income? GDP, Gross Domestic Product, measures the total value of all final goods and services produced in the economy of a country during a given year. Important points that need special attention in the definition of GDP are ‘total,’ ‘final,’ ‘country,’ and ‘a given year.’

An Overview of Shorthand: History and Types of Shorthand

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Shorthand is the use of abbreviated spellings and or simplified symbols to record information in a quicker, more compact form. The opposite of this is longhand, which generally uses either block lettering or a cursive script. While it takes longer to fully write something out in longhand, all or most of those fluent in a given language will understand what is written down, as opposed to shorthand, which requires special training. In light of modern recording and word processing technologies, the decline in shorthand’s use seems inevitable, with newer inventions allowing those who only known longhand to reap the benefits of shorthand. And yet several shorthand systems thrive in a few niche industries. To fully appreciate shorthand and its resilience, one must go back to its origins.